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Guo H, Wang X, Cheng H, Luo Z, Huang J, Chen H, Pang J, Lin K, Huang S, Zhang X, Zhang Y. Deep-sea microplastics aging and migration exerted by seamount topography and biotopes in the subtropic Northwest Pacific Ocean. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174064. [PMID: 38889812 DOI: 10.1016/j.scitotenv.2024.174064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 06/03/2024] [Accepted: 06/15/2024] [Indexed: 06/20/2024]
Abstract
Microplastics (MPs) have drawn exponential attention as anthropogenic pollutants, which have invaded every corner of planet. Seamounts are prominent features of the deep-sea topography, acting as breeding ground for marine animal calves and hotspots of pelagic biodiversity, yet MPs pollution in seamounts is scarcely studied. We investigated the MPs load in the whole vertical profile of seamount ambient water in the Subtropical Northwest Pacific Ocean. Based on focal plane array Fourier Transform Infrared spectrometry, MPs were detected in all layers, and varied from 0.9 to 3.8 items L-1, PP and PE were dominant, PA and PET tended to gather at the seamount summit. With depth increasing, small MPs (20-50 μm) were dominant, and MPs surface roughness including crack, hole, and biofouling showed an increase. Three plastic-degrading bacteria were noted in the layers around the seamount, indicating that the seamount community may accelerate MPs aging and further migration. Our work first unveiled the MPs occurrence in the whole vertical profile of the seamount. It reveals that ocean MPs migration and degradation are significantly affected by the unique topography and biotopes of the seamount.
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Affiliation(s)
- Huige Guo
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China.
| | - Xiaochen Wang
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
| | - Hong Cheng
- Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Zhaohe Luo
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
| | - Jieliang Huang
- School of Life Science, Xiamen University, Xiamen 361005, China
| | - Hongzhe Chen
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
| | - Jinling Pang
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
| | - Kunning Lin
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
| | - Shuyuan Huang
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
| | - Xuhui Zhang
- Department of Pharmaceutics Science, Shenyang Pharmaceutical University, Shenyang 110116, China
| | - Yuanbiao Zhang
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China.
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52
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Zhang L, Wang F, Wang W, Su Y, Zhan M, Lu J, Xie B. Using machine learning to reveal drivers of soil microplastics and assess their stock: A national-scale study. JOURNAL OF HAZARDOUS MATERIALS 2024; 478:135466. [PMID: 39128149 DOI: 10.1016/j.jhazmat.2024.135466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 07/31/2024] [Accepted: 08/08/2024] [Indexed: 08/13/2024]
Abstract
The issue of microplastic (MP) contamination in soil is a significant concern. However, due to limited large-scale studies and stock assessments, our understanding of the drivers of their distribution and fate remains incomplete. To address this, we conducted a comprehensive study in China, collected MP data from 621 sites, and utilized machine learning techniques for analysis. Our findings revealed 9 key factors influencing the distribution of soil MPs, highlighting their nonlinear influence processes. Among these factors, atmospheric deposition emerged as the most dominant driver, while wind and precipitation could lead to the transformation of soil from a sink to a source of MPs. MP concentrations in Chinese soils vary from 1.4 to 4333.1 particles/kg, with human activities significantly affecting their distribution, resulting in higher concentrations in the east and lower concentrations in the west. The estimated MP stock in Chinese soils is 1.92 × 1018 particles, equivalent to a mass of 2.11-8.64 million tonnes. This stock alone surpasses that found in global oceans, making global soil the largest reservoir of MPs. Overall, this study enhances our understanding of the environmental behavior of MPs and provides valuable data and theoretical support for the prevention, control, and management of this contamination.
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Affiliation(s)
- Linjie Zhang
- Shanghai Engineering Research Center of Biotransformation on Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Feng Wang
- Shanghai Engineering Research Center of Biotransformation on Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Wenyue Wang
- Shanghai Engineering Research Center of Biotransformation on Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Yinglong Su
- Shanghai Engineering Research Center of Biotransformation on Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Min Zhan
- Shanghai Engineering Research Center of Biotransformation on Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Jun Lu
- Auckland Bioengineering Institute, University of Auckland, Auckland 1142, New Zealand; Department of Food and Agriculture Technology, Yangtze Delta Region Institute of Tsinghua University, Zhejiang, China
| | - Bing Xie
- Shanghai Engineering Research Center of Biotransformation on Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
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53
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Sato M, Yang Z, Katagata Y, Hamada H, Yamada Y, Arakawa H. Microplastic volumes in Tokyo Bay. MARINE POLLUTION BULLETIN 2024; 207:116871. [PMID: 39216256 DOI: 10.1016/j.marpolbul.2024.116871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2024] [Revised: 07/31/2024] [Accepted: 08/16/2024] [Indexed: 09/04/2024]
Abstract
Microplastic (MP) pollution is a rising environmental concern. This study investigated MP concentrations in Tokyo Bay using neuston net for surface sampling and deep-sea plankton pump for underwater sampling across six stations at multiple depths. Results revealed substantial variation in MP concentrations. Surface large microplastics (LMP, > 350 μm) ranged from 0.21 × 10-3 to 3.34 × 10-3 pieces L-1, averaging 1.26 × 10-3 pieces L-1, while surface small microplastics (SMP, 60 μm to 350 μm) were highest at head of the bay (11.5 ± 3.05 pieces L-1). SMP concentrations varied with depth and position, peaking at center of the bay (5.79 ± 1.63 pieces L-1 at 2 m). Additionally, the total amount of surface LMP was estimated at 10.3 m3 and SMP at 15.0 m3 in the Tokyo Bay. This study provides a comprehensive picture of the spatial and vertical distribution of MP in Tokyo Bay.
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Affiliation(s)
- Mirai Sato
- Tokyo University of Marine Science and Technology, Konan 4-5-7, Minato-Ku, Tokyo 108-8477, Japan
| | - Zijiang Yang
- Tokyo University of Marine Science and Technology, Konan 4-5-7, Minato-Ku, Tokyo 108-8477, Japan.
| | - Yukiho Katagata
- Tokyo University of Marine Science and Technology, Konan 4-5-7, Minato-Ku, Tokyo 108-8477, Japan
| | - Hiroaki Hamada
- Tokyo University of Marine Science and Technology, Konan 4-5-7, Minato-Ku, Tokyo 108-8477, Japan.
| | - Yuta Yamada
- Tokyo University of Marine Science and Technology, Konan 4-5-7, Minato-Ku, Tokyo 108-8477, Japan.
| | - Hisayuki Arakawa
- Tokyo University of Marine Science and Technology, Konan 4-5-7, Minato-Ku, Tokyo 108-8477, Japan.
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54
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Fraissinet S, Arduini D, Martines A, De Benedetto GE, Malitesta C, Giangrande A, Rossi S. Seasonal occurrence and distribution of microplastics in four different benthic suspension feeders from an Integrated Multi-Trophic Aquaculture (IMTA) facility: A bioremediation perspective. MARINE POLLUTION BULLETIN 2024; 207:116811. [PMID: 39121801 DOI: 10.1016/j.marpolbul.2024.116811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 08/01/2024] [Accepted: 08/02/2024] [Indexed: 08/12/2024]
Abstract
Microplastics (MPs) are dangerous and ubiquitous in the environment. The urgency to contrast plastic pollution is prompting the scientific community to offer new proposals. Recently, bioremediation using filter feeders is gaining consent as a nature-based solution. Herein four filter feeders (Mytilus galloprovincialis Lamarck, 1819, Sabella spallanzanii Gmelin, 1791, Phallusia mammillata Cuvier, 1815, Paraleucilla magna Klautau, Monteiro & Borojevic, 2004), studied in a previous laboratory experiment as MPs bioremediators, are evaluated in field conditions within 1-year. These organisms are part of an established fouling community growing on eco-friendly ropes in an Integrated Multi-Trophic Aquaculture (IMTA) in the Mar Grande of Taranto. After digesting the animal tissue, the MPs content was quantified by optical microscopy and spectroscopically characterized in the four seasons: highest values were measured in Autumn and lowest in Spring. M. galloprovincialis and P. mammillata were the most contaminated, but S. spallanzanii removed more MPs, due to its high density on the ropes. The whole community removed 3.15 × 107 MPs/season, with the amount of microfibers corresponding to a bottle cap/season.
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Affiliation(s)
- Silvia Fraissinet
- Department of Biological and Environmental Science and Technology, University of Salento, Lecce, Italy.
| | - Daniele Arduini
- Department of Biological and Environmental Science and Technology, University of Salento, Lecce, Italy; CoNISMa Consorzio Nazionale Interuniversitario per le Scienze del Mare, Rome, Italy
| | - Alessandra Martines
- Department of Biological and Environmental Science and Technology, University of Salento, Lecce, Italy
| | - Giuseppe Egidio De Benedetto
- Laboratory of Analytic and Isotopic Mass Spectrometry, Department of Cultural Heritage, University of Salento, Lecce, Italy
| | - Cosimino Malitesta
- Department of Biological and Environmental Science and Technology, University of Salento, Lecce, Italy
| | - Adriana Giangrande
- Department of Biological and Environmental Science and Technology, University of Salento, Lecce, Italy; CoNISMa Consorzio Nazionale Interuniversitario per le Scienze del Mare, Rome, Italy
| | - Sergio Rossi
- Department of Biological and Environmental Science and Technology, University of Salento, Lecce, Italy; CoNISMa Consorzio Nazionale Interuniversitario per le Scienze del Mare, Rome, Italy; Institute of Marine Sciences (LABOMAR), Federal University of Ceará, Av. Abolicao 230, Fortaleza 60440-900, Brazil
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55
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Zhang L, Vaccari F, Bandini F, Puglisi E, Trevisan M, Lucini L. The short-term effect of microplastics in lettuce involves size- and dose-dependent coordinate shaping of root metabolome, exudation profile and rhizomicrobiome. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 945:174001. [PMID: 38879040 DOI: 10.1016/j.scitotenv.2024.174001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 06/02/2024] [Accepted: 06/12/2024] [Indexed: 06/22/2024]
Abstract
Micro- and nano-plastics (MNPs) in the soil can impact the microbial diversity within rhizospheres and induce modifications in plants' morphological, physiological, and biochemical parameters. However, a significant knowledge gap still needs to be addressed regarding the specific effects of varying particle sizes and concentrations on the comprehensive interplay among soil dynamics, root exudation, and the overall plant system. In this sense, different omics techniques were employed to clarify the mechanisms of the action exerted by four different particle sizes of polyethylene plastics considering four different concentrations on the soil-roots exudates-plant system was studied using lettuce (Lactuca sativa L. var. capitata) as a model plant. The impact of MNPs was investigated using a multi-omics integrated approach, focusing on the tripartite interaction between the root metabolic process, exudation pattern, and rhizosphere microbial modulation. Our results showed that particle size and their concentrations significantly modulated the soil-roots exudates-plant system. Untargeted metabolomics highlighted that fatty acids, amino acids, and hormone biosynthesis pathways were significantly affected by MNPs. Additionally, they were associated with the reduction of rhizosphere bacterial α-diversity, following a size-dependent trend for specific taxa. The omics data integration highlighted a correlation between Pseudomonadata and Actinomycetota phyla and Bacillaceae family (Peribacillus simplex) and the exudation of flavonoids, phenolic acids, and lignans in lettuce exposed to increasing sizes of MNPs. This study provides a novel insight into the potential effects of different particle sizes and concentrations of MNPs on the soil-plant continuum, providing evidence about size- and concentration-dependent effects, suggesting the need for further investigation focused on medium- to long-term exposure.
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Affiliation(s)
- Leilei Zhang
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Filippo Vaccari
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Francesca Bandini
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Edoardo Puglisi
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Marco Trevisan
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Luigi Lucini
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Piacenza, Italy.
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56
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Skalska K, Ockelford A, Ebdon J, Cundy A, Horton AA. Spatio-temporal trends in microplastic presence in the sediments of the River Thames catchment (UK). MARINE POLLUTION BULLETIN 2024; 207:116881. [PMID: 39236492 DOI: 10.1016/j.marpolbul.2024.116881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 08/11/2024] [Accepted: 08/18/2024] [Indexed: 09/07/2024]
Abstract
This study investigated the spatio-temporal variability of microplastics (MPs) in the sediments of the River Thames (UK) catchment over 30 months (July 2019 - Dec 2021). The average MP concentration was 61 items kg-1 d.w., with fragments <1 mm being dominant and polyethylene (PE) the most common polymer. Adjacent land use influenced MP concentrations and types, with industrial sites showing particularly high levels and a prevalence of small beads and industrial polymers. MP concentrations generally decreased after higher winter flows, likely due to sediment rearrangement or winnowing. This study describes the seasonal concentrations and characteristics of MPs present in sediment from the River Thames catchment, and attempts to identify their likely origin. Further, the study provides new insights into the mobility and fate of MPs in riverine settings under varying flow conditions, which is vital given the predicted increases in flooding under various global heating scenarios.
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Affiliation(s)
- Karolina Skalska
- School of Applied Sciences, University of Brighton, Brighton, BN2 4GJ, UK; Environment Agency, Guildbourne Centre, Chatsworth Rd, Worthing, UK
| | - Annie Ockelford
- School of Engineering, University of Liverpool, Liverpool, UK
| | - James Ebdon
- School of Applied Sciences, University of Brighton, Brighton, BN2 4GJ, UK.
| | - Andrew Cundy
- School of Ocean and Earth Science, National Oceanography Centre, University of Southampton, Southampton, UK
| | - Alice A Horton
- National Oceanography Centre, European Way, Southampton, UK
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57
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Sheng D, Jing S, He X, Klein AM, Köhler HR, Wanger TC. Plastic pollution in agricultural landscapes: an overlooked threat to pollination, biocontrol and food security. Nat Commun 2024; 15:8413. [PMID: 39333509 PMCID: PMC11437009 DOI: 10.1038/s41467-024-52734-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 09/19/2024] [Indexed: 09/29/2024] Open
Abstract
Ecosystem services such as pollination and biocontrol may be severely affected by emerging nano/micro-plastics (NMP) pollution. Here, we synthesize the little-known effects of NMP on pollinators and biocontrol agents on the organismal, farm and landscape scale. Ingested NMP trigger organismal changes from gene expression, organ damage to behavior modifications. At the farm and landscape level, NMP will likely amplify synergistic effects with other threats such as pathogens, and may alter floral resource distributions in high NMP concentration areas. Understanding exposure pathways of NMP on pollinators and biocontrol agents is critical to evaluate future risks for agricultural ecosystems and food security.
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Affiliation(s)
- Dong Sheng
- Sustainable Agricultural Systems & Engineering Lab, School of Engineering, Westlake University, Hangzhou, 310030, China
- Key Laboratory of Coastal Environment and Resources of Zhejiang Province, School of Engineering, Westlake University, Hangzhou, 310024, China
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310030, China
| | - Siyuan Jing
- Sustainable Agricultural Systems & Engineering Lab, School of Engineering, Westlake University, Hangzhou, 310030, China
- Key Laboratory of Coastal Environment and Resources of Zhejiang Province, School of Engineering, Westlake University, Hangzhou, 310024, China
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200438, China
| | - Xueqing He
- Sustainable Agricultural Systems & Engineering Lab, School of Engineering, Westlake University, Hangzhou, 310030, China
- Department of Health and Environmental Sciences, School of Science, Xi'an Jiaotong-Liverpool University, Suzhou, 215123, China
| | - Alexandra-Maria Klein
- Nature Conservation and Landscape Ecology, University of Freiburg, Freiburg, 79106, Germany
| | - Heinz-R Köhler
- Animal Physiological Ecology, University of Tübingen, Tübingen, 72076, Germany
| | - Thomas C Wanger
- Sustainable Agricultural Systems & Engineering Lab, School of Engineering, Westlake University, Hangzhou, 310030, China.
- Key Laboratory of Coastal Environment and Resources of Zhejiang Province, School of Engineering, Westlake University, Hangzhou, 310024, China.
- Agroecology, University of Göttingen, Göttingen, 37073, Germany.
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58
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Kherdekar RD, Ade AB. Integrated approaches for plastic waste management. Front Microbiol 2024; 15:1426509. [PMID: 39391604 PMCID: PMC11465426 DOI: 10.3389/fmicb.2024.1426509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Accepted: 08/20/2024] [Indexed: 10/12/2024] Open
Abstract
Plastic pollution is the challenging problem of the world due to usage of plastic in daily life. Plastic is essential for packaging food and other goods and utensils to avoid the risk of microbial attack. Due to its hydrophobic nature, it is used for wrapping as laminates or packaging liquid substances in pouches and sachets. The tensile strength of the plastic is more therefore it is used for manufacturing carrying bags that can bear heavy loads. Plastic is available in various forms as per the requirements in our daily life. Annually millions to trillions of polyethene carry bags are being manufactured and utilized throughout the world. The plastic requires millions of years for natural degradation. The physical and chemical processes are able to degrade plastic material at the meager level by 200 to 500 years in natural conditions. Many industries focus on recycling of plastic. Biodegradation is a comparatively slow and cheaper process that involves microbes. To dispose of plastic completely there is a need of an integrated process in which all the possible methods of disposal are involved and used sustainably so that minimum depletion occurs to the livestock and the environment. In the current review, we could try to emphasize the intricate nature of plastic polymers, pollution caused by it and possible mitigation strategies for plastic waste management.
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59
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Wang C, Song J, Nunes LM, Zhao H, Wang P, Liang Z, Arp HPH, Li G, Xing B. Global microplastic fiber pollution from domestic laundry. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135290. [PMID: 39047563 DOI: 10.1016/j.jhazmat.2024.135290] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 07/18/2024] [Accepted: 07/20/2024] [Indexed: 07/27/2024]
Abstract
The rapid expansion of fast fashion has significantly increased microplastic fiber (MPF) release during laundry practices, accounting for approximately one-third of primary microplastics entering the ocean. Currently, a significant gap exists in global-scale research on the release of MPFs from washing textiles. This study introduces an innovative empirical model to assess the spatial distribution of MPF emissions. The model estimates an annual global emission of 5.69 million tons of MPFs from laundry. Of this total, machine washing accounts for the majority (93.7 %), with hand washing contributing the remaining 6.3 %. As the primary source of MPF pollution, Asia's emissions reach 3.71 million tons, far exceeding those of North America (1.18 million tons) and Europe (0.45 million tons). The primary issue is that wastewater management efficiency varies significantly worldwide. In Asia, there is persistently high discharge of MPFs into natural waters, and the removal efficiency of wastewater treatment plants is still comparatively low. In contrast, the United States and many European countries exhibit better MPF retention. The global nature of this challenge mandates international collaboration for comprehensive environmental conservation. Our study provides the first high-resolution global distribution map of MPF emissions and discharge into natural waters, establishing a data foundation for global and regional management of microplastics originating from household laundry sources.
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Affiliation(s)
- Chunhui Wang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
| | - Jing Song
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
| | - Luís Miguel Nunes
- CERIS-Civil Engineering Research and Innovation for Sustainability, Faculty of Sciences and Technology, University of Algarve, Campus de Gambelas, Faro 8005-199, Portugal
| | - Hongting Zhao
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Peng Wang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Zhirong Liang
- Zhongfa Aviation Institute of Beihang University, Hangzhou, Zhejiang 311115, China
| | - Hans Peter H Arp
- Norwegian Geotechnical Institute (NGI), P.O. Box 3930 Ullevaal Stadion, N-0806 Oslo, Norway; Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
| | - Gang Li
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China.
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, United States
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60
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Radford F, Horton AA, Felgate S, Lichtschlag A, Hunt J, Andrade V, Sanders R, Evans C. Factors influencing microplastic abundances in the sediments of a seagrass-dominated tropical atoll. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 357:124483. [PMID: 38960123 DOI: 10.1016/j.envpol.2024.124483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 06/28/2024] [Accepted: 06/30/2024] [Indexed: 07/05/2024]
Abstract
Seagrass meadows are one of the world's most diverse ecosystems offering habitats for an extensive array of species, as well as serving as protectors of coral reefs and vital carbon sinks. Furthermore, they modify hydrodynamics by diminishing water flow velocities and enhancing sediment deposition, indicating the potential for microplastic accumulation in their sediments. The build-up of microplastics could potentially have ecological impacts threatening to ecosystems, however little is known about microplastic abundance and controlling factors in seagrass sediments. Here we investigated microplastic characteristics and abundances within sediments underlying four seagrass meadow sites on the Turneffe Atoll, Belize. Sediment cores were collected and sub-sampled to include a range of replicate surface sediments (0-4 cm) and depth cores (sediment depths 0-2, 2-5, 5-10, 10-20 and 20-30 cm). These were analysed using 25 μm resolution μFTIR, with spectral maps processed using siMPle software. Microplastics were prevalent across the sites with an abundance range (limit of detection (LOD) blank-corrected) of < LOD to 17137 microplastics kg-1 dw found on the east side of the atoll. However, their abundances varied greatly between the replicate samples. Polyethylene and polypropylene were the most commonly detected polymers overall, although the dominant polymer type varied between sites. There were no differences in the abundance of microplastics between sites, nor could abundance distributions be explained by seagrass cover. However, abundances of microplastics were highest in sediments with lower proportions of fine grained particles (clay, <4 μm) suggesting that hydrodynamics override seagrass effects. Additionally, no patterns were seen between microplastic abundance and depth of sediment. This suggests that microplastic abundance and distribution in seagrass meadows may vary significantly depending on the specific geographical locations within those meadows, and that more complex hydrodynamic factors influence spatial variability at a localised scale.
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Affiliation(s)
- Freya Radford
- National Oceanography Centre, European Way, Southampton, SO14 3ZH, UK; Biospheric Microplastics Research Cluster, University of the West of England, Coldharbour Lane, Bristol, BS16 1QY, UK
| | - Alice A Horton
- National Oceanography Centre, European Way, Southampton, SO14 3ZH, UK.
| | - Stacey Felgate
- National Oceanography Centre, European Way, Southampton, SO14 3ZH, UK
| | - Anna Lichtschlag
- National Oceanography Centre, European Way, Southampton, SO14 3ZH, UK
| | - James Hunt
- National Oceanography Centre, European Way, Southampton, SO14 3ZH, UK
| | - Valdemar Andrade
- Turneffe Atoll Sustainability Association (TASA), 1216 Blue Marlin Boulevard, Belize City, Belize
| | - Richard Sanders
- NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Jahnebakken 5, 5007 Bergen, Norway
| | - Claire Evans
- National Oceanography Centre, European Way, Southampton, SO14 3ZH, UK
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61
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Han X, Pan B, Li D, Liu X, Liu X, Hou Y, Li G. Heterogenization of microplastic communities in lakes of the Qinghai-Tibetan Plateau driven by tourism and transport activities. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135255. [PMID: 39042989 DOI: 10.1016/j.jhazmat.2024.135255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 07/11/2024] [Accepted: 07/17/2024] [Indexed: 07/25/2024]
Abstract
The Qinghai-Tibetan Plateau has a booming tourism industry and an increasingly sophisticated road system. There is a paucity of studies quantifying the contributions of anthropogenic and natural factors to microplastic pollution in remote plateau areas. In this study, water and sediment samples were collected from eight lake tourist attractions and four remote lakes in northern and southern regions of the Qinghai-Tibetan Plateau. Microplastics were detected in all samples, with a mean abundance of 0.78 items/L in water and 44.98 items/kg in sediment. The abundance of microplastics in the study area was lower than previously observed in more populated areas of China. Small-sized (<1 mm and 1-2 mm), fiber, and transparent microplastics were predominant, with polyethylene and polypropylene microplastics as the primary polymer types. The compositions of microplastic communities indicated that tourism and road networks were the major sources of microplastics in the lakes. Distance-decay models revealed greater influence of environmental distances on microplastic community similarity than geographic distance. Compared to climate factors, urban spatial impact intensity and traffic flow impact played a leading role in the structuring of microplastic communities in lake water and sediment. Our findings provide novel quantitative insights into the role of various factors in shaping the distribution patterns of microplastic communities in plateau lakes.
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Affiliation(s)
- Xu Han
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
| | - Baozhu Pan
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, Shaanxi 710048, China.
| | - Dianbao Li
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
| | - Xing Liu
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
| | - Xinyuan Liu
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
| | - Yiming Hou
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
| | - Gang Li
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
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Ikenoue T, Nakajima R, Osafune S, Siswanto E, Honda MC. Vertical Flux of Microplastics in the Deep Subtropical Pacific Ocean: Moored Sediment-Trap Observations within the Kuroshio Extension Recirculation Gyre. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:16121-16130. [PMID: 39183461 PMCID: PMC11394010 DOI: 10.1021/acs.est.4c02212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Abstract
The Kuroshio Extension recirculation gyre in the western North Pacific is an accumulation site of plastic litter transported by the Kuroshio Current. A sediment trap was moored at a depth of 4900 m at Station KEO within the Kuroshio Extension recirculation gyre, and the vertical flux of microplastics in sinking particles of size <1 mm was observed. Forty-one sediment-trap samples collected from July 1, 2014, to October 2, 2016, were analyzed with a micro-Fourier transform infrared spectrometer and microplastics were detected in all samples. Seventeen polymer types were identified, and 90% of the microplastics were less than 100 μm in size. Microplastic sinking was driven by the action of the biological pump, which was in turn driven by seasonal variations in solar radiation and increased surface primary production typical of the spring season. Microplastic mass flux varied from 4.5 × 10-3 to 0.38 mg m-2 day-1 during the sampling period, with a mean and standard deviation of 0.054 ± 0.075 mg m-2 day-1. Extrapolating the annual microplastic mass flux at Station KEO to the entire Kuroshio Extension recirculation gyre, it is estimated that 0.028 million metric tons of microplastics are transported annually to 4900 m depth in this area.
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Affiliation(s)
- Takahito Ikenoue
- Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Japan
| | - Ryota Nakajima
- Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Japan
| | - Satoshi Osafune
- Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Japan
| | - Eko Siswanto
- Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Japan
| | - Makio C Honda
- Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Japan
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Wang C, Zhang Y, Wang C, He M. Enhancing aggregation of microalgae on polystyrene microplastics by high light: Processes, drivers, and environmental risk assessment. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:135062. [PMID: 38959831 DOI: 10.1016/j.jhazmat.2024.135062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 04/06/2024] [Accepted: 06/26/2024] [Indexed: 07/05/2024]
Abstract
Microplastics (MPs) are emerging pollutants, causing potential threats to aquatic ecosystems and serious concern in aggregating with microalgae (critical primary producers). When entering water bodies, MPs are expected to sink below the water surface and disperse into varying water compartments with different light intensities. However, how light influences the aggregation processes of algal cells onto MPs and the associated molecular coupling mechanisms and derivative risks remain poorly understood. Herein, we investigated the aggregation behavior between polystyrene microplastics (mPS, 10 µm) and Chlorella pyrenoidosa under low (LL, 15 μmol·m-2·s-1), normal (NL, 55 μmol·m-2·s-1), and high light (HL, 150 μmol·m-2·s-1) conditions from integrated in vivo and in silico assays. The results indicated that under LL, the mPS particles primarily existed independently, whereas under NL and HL, C. pyrenoidosa tightly bounded to mPS by secreting more protein-rich extracellular polymeric substances. Infrared spectroscopy analysis and density functional theory calculation revealed that the aggregation formation was driven by non-covalent interaction involving van der Waals force and hydrogen bond. These processes subsequently enhanced the deposition and adherence capacity of mPS and relieved its phytotoxicity. Overall, our findings advance the practical and theoretical understanding of the ecological impacts of MPs in complex aquatic environments.
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Affiliation(s)
- Chun Wang
- College of Resources and Environmental Science, Nanjing Agricultural University, Nanjing 210095, China; College of Oceanography, Hohai University, Nanjing 210024, China
| | - Yaru Zhang
- College of Resources and Environmental Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Changhai Wang
- College of Resources and Environmental Science, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing 210095, China; Co-Innovation Center for Jiangsu Marine Bio-Industry Technology, Lianyungang 222005, China.
| | - Meilin He
- College of Resources and Environmental Science, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing 210095, China.
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64
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Zeng Y, Wang H, Liang D, Yuan W, Li S, Xu H, Chen J. Navigating the difference of riverine microplastic movement footprint into the sea: Particle properties influence. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:134888. [PMID: 38897117 DOI: 10.1016/j.jhazmat.2024.134888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 06/01/2024] [Accepted: 06/10/2024] [Indexed: 06/21/2024]
Abstract
As a critical source of marine microplastics (MPs), estuarine MPs community varied in movement due to particle diversity, while tide and runoff further complicated their transport. In this study, a particle mass gradient that represents MPs in the surface layer of the Yangtze River estuary was established. This was done by calculating the masses of 16 particle types using the particle size probability density function (PDF), with typical shapes and polymers as classifiers. Further, Aschenbrenner shape factor and polymer density were embedded into drag coefficients to categorically trace MP movement footprints. Results revealed that the MPs in North Branch moved northward and the MPs in South Branch moved southeastward in a spiral oscillation until they left the model boundary under Changjiang Diluted Water front and the northward coastal currents. Low-density fibrous MPs are more likely to move into the open ocean and oscillate more than films, with a single PE fiber trajectory that reached a maximum oscillatory width of 16.7 km. Over 95 % of the PVC fiber particles settled in nearshore waters west of 122.5°E. Elucidating the aggregation and retention of different MPs types can provide more accurate environmental baseline reference for more precise MP exposure levels and risk dose of ingestion for marine organisms.
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Affiliation(s)
- Yichuan Zeng
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China
| | - Hua Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China.
| | - Dongfang Liang
- Department of Engineering, University of Cambridge, Cambridge CB2 1PZ, UK
| | - Weihao Yuan
- Nanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing 210042, China
| | - Siqiong Li
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China
| | - Haosen Xu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China
| | - Jingwei Chen
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China
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65
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Mateos-Cárdenas A, Wheeler AJ, Lim A. Microplastics and cellulosic microparticles in North Atlantic deep waters and in the cold-water coral Lophelia pertusa. MARINE POLLUTION BULLETIN 2024; 206:116741. [PMID: 39089204 DOI: 10.1016/j.marpolbul.2024.116741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 06/21/2024] [Accepted: 07/15/2024] [Indexed: 08/03/2024]
Abstract
This study explores microplastic and cellulosic microparticle occurrences in the NE Atlantic, focusing on the Porcupine Bank Canyon and Porcupine Seabight. Water samples from depths ranging between 605 and 2126 m and Lophelia pertusa coral samples from 950 m depth were analysed. Microparticles were detected in deep-water habitats, with concentrations varying from 2.33 to 9.67 particles L-1 in the Porcupine Bank Canyon, notably lower at greater depths. This challenges the assumption of deeper habitats solely acting as microplastic sinks. We also found evidence of microparticle adsorption and ingestion by L. pertusa. The presence of microparticles in cold-water corals underscores their vulnerability to pollutants. Furthermore, the dominance of rayon microparticles in both water and coral samples raises questions about marine pollution sources, potentially linked to terrestrial origins. This research emphasises the critical need for comprehensive exploration and conservation efforts in deep-sea environments, especially to protect vital ecosystems like L. pertusa reefs.
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Affiliation(s)
- Alicia Mateos-Cárdenas
- School of Biological, Earth and Environmental Sciences/iCRAG, University College Cork, Ireland; Environmental Research Institute, Cork, Ireland.
| | - Andrew J Wheeler
- School of Biological, Earth and Environmental Sciences/iCRAG, University College Cork, Ireland; Environmental Research Institute, Cork, Ireland
| | - Aaron Lim
- Department of Geography, University College Cork, Ireland
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Isfarin NN, Fara ME, Krisna HN, Machdani S, Munir M. Microplastics in Indonesian land and aquatic environment: From research activities to regulation policies. MARINE POLLUTION BULLETIN 2024; 206:116813. [PMID: 39116757 DOI: 10.1016/j.marpolbul.2024.116813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Revised: 07/29/2024] [Accepted: 08/02/2024] [Indexed: 08/10/2024]
Abstract
Indonesia is suspected as one of the largest plastic waste contributors to the ocean, resulting in microplastic (MP) contamination of the marine environment. Likewise, >250 MP research in Indonesia have been published in the last decade, including review articles. However, a comprehensive review covering MP observations in all areas, i.e. land, freshwater, and ocean, and the regulation aspect in Indonesia remains unexplored. This review finds that the current MP studies are not sufficient to provide the big picture of MP distribution in Indonesia, suggesting the need for research guidelines and coordination among scholars in this field. In addition, the currently implemented local regulation in plastic item limitation should be supported by effective monitoring, sanction, and education for citizens, as well as investment in waste management facilities. Overall, this review suggests the improvement of MP studies and national regulation as countermeasures for MP pollution problems.
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Affiliation(s)
- Nadia Nurani Isfarin
- Faculty of Law, Social, and Political Sciences, Universitas Terbuka, South Tangerang, Banten 15437, Indonesia
| | - Meita Eka Fara
- Research Center for Radioisotope Radiopharmaceutical and Biodosimetry Technology, National Research and Innovation Agency, KST BJ Habibie, South Tangerang, Banten 15314, Indonesia; Department of Marine Science, Faculty of Fisheries and Marine Science, Universitas Diponegoro, Semarang, Central Java 50275, Indonesia
| | - Heru Nur Krisna
- Department of Marine Science, Faculty of Fisheries and Marine Science, Universitas Diponegoro, Semarang, Central Java 50275, Indonesia
| | - Synthiya Machdani
- Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, Universitas Diponegoro, Semarang, Central Java 50275, Indonesia
| | - Miftakul Munir
- Research Center for Radioisotope Radiopharmaceutical and Biodosimetry Technology, National Research and Innovation Agency, KST BJ Habibie, South Tangerang, Banten 15314, Indonesia.
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67
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Yan P, Zhuang S, Li M, Zhang J, Wu S, Xie H, Wu H. Combined environmental pressure induces unique assembly patterns of micro-plastisphere biofilm microbial communities in constructed wetlands. WATER RESEARCH 2024; 260:121958. [PMID: 38896886 DOI: 10.1016/j.watres.2024.121958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 06/09/2024] [Accepted: 06/17/2024] [Indexed: 06/21/2024]
Abstract
The characteristics and dynamics of micro-plastisphere biofilm on the surface of microplastics (MPs) within artificial ecosystems, such as constructed wetlands (CWs), remain unclear, despite these ecosystems' potential to serve as sinks for MPs. This study investigates the dynamic evolution of micro-plastisphere biofilm in CWs, utilizing simulated wastewater containing sulfamethoxazole and humic acid, through physicochemical characterization and metagenomic analysis. Two different types of commercial plastics, including non-degradable polyethylene and degradable polylactic acid, were shredded into MPs and studied. The findings reveal that the types, shape and incubation time of MPs, along with humic acid content in wastewater, affected the quantity and quality of biofilms, such as the biofilm composition, spatial structure and microbial communities. After just 15 days into incubation, numerous microbials were observed on MP samples, with increases in biofilms content and enhanced humification of extracellular polymeric substances over time. Additionally, microbial communities on polylactic acid MPs, or those incubated for longer time, exhibit higher diversity, connectivity and stability, along with reduced vulnerability. Conversely, biofilms on polyethylene MPs were thicker, with higher potential for greenhouse gas emission and increased risk of antibiotic resistance genes. The addition of humic acid demonstrated opposite effects on biofilms across environmental interfaces, possibly due to its dual potential to produce light-induced free radicals and serve as a carbon source. Binning analysis further uncovered a unique assembly pattern of nutrients cycle genes and antibiotic resistance genes, significantly correlated within micro-plastisphere microbial communities, under the combined stress of nutrition and sulfamethoxazole. These results emphasize the shaping of micro-plastisphere biofilm characteristics by unique environmental conditions in artificial ecosystems, and the need to understand how DOM and other pollutants covary with MP pollution.
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Affiliation(s)
- Peihao Yan
- School of Environmental Science & Engineering, Shandong University, Qingdao 266237, PR China
| | - Shuzhen Zhuang
- School of Environmental Science & Engineering, Shandong University, Qingdao 266237, PR China
| | - Mingjun Li
- School of Environmental Science & Engineering, Shandong University, Qingdao 266237, PR China
| | - Jian Zhang
- School of Environmental Science & Engineering, Shandong University, Qingdao 266237, PR China; College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, PR China.
| | - Shubiao Wu
- Department of Agroecology, Aarhus University, Tjele 8830, Denmark
| | - Huijun Xie
- Environment Research Institute, Shandong University, Qingdao, 266247, PR China
| | - Haiming Wu
- School of Environmental Science & Engineering, Shandong University, Qingdao 266237, PR China.
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68
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Wei L, Zhan S, Zhou M, Xu X, You F, Zheng H. A Powerful Strategy for Carbon Reduction: Recyclable Mono-Material Polyethylene Functional Film. Polymers (Basel) 2024; 16:2196. [PMID: 39125222 PMCID: PMC11314730 DOI: 10.3390/polym16152196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Revised: 07/24/2024] [Accepted: 07/30/2024] [Indexed: 08/12/2024] Open
Abstract
Given the abundant plastics produced globally, and the negative environmental impacts of disposable plastic products throughout their life cycle, there has been significant attention drawn by the general public and governments worldwide. Mono-material multilayer packaging is a potent strategy to address the challenge of carbon emissions as it offers specific functionalities (such as strength and barrier properties) through its layers and facilitates recycling. In this study, a five-layer co-extruded polyethylene composite film LLDPE/mPE/PVA/mPE/LLDPE was taken as a model to investigate its mechanical properties and barrier properties after four recycling cycles. The result revealed that the longitudinal tensile strength and transvers tensile were, respectively, dropped from 29.66 MPa and 24.9 MPa to 21.972 MPa and 19.222 MPa after the recycling; it is shown that the film still has good mechanical properties after the recycling cycle. However, a noticeable decline in the barrier properties was observed after the second recycling. In contrast to traditional plastics, a mono-material film with a 10 wt.% circulating mass could reduce CO2 emissions by 3692.25 kg for every 1.0 ton of plastic products after four recycling cycles.
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Affiliation(s)
- Liming Wei
- Shanghai Royal New Materials Technology Company Limited, Shanghai 201803, China;
| | - Shengqi Zhan
- Province Key Lab of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430073, China; (S.Z.); (M.Z.); (X.X.); (F.Y.)
| | - Mingyu Zhou
- Province Key Lab of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430073, China; (S.Z.); (M.Z.); (X.X.); (F.Y.)
| | - Xuerong Xu
- Province Key Lab of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430073, China; (S.Z.); (M.Z.); (X.X.); (F.Y.)
| | - Feng You
- Province Key Lab of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430073, China; (S.Z.); (M.Z.); (X.X.); (F.Y.)
| | - Huaming Zheng
- Province Key Lab of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430073, China; (S.Z.); (M.Z.); (X.X.); (F.Y.)
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69
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Xiong D, He X, Liu X, Zhang K, Tu Z, Wang J, Sun SG, Chen Z. Manipulating Dual-Metal Catalytic Activities toward Organic Upgrading in Upcycling Plastic Wastes with Inhibited Oxygen Evolution. ACS NANO 2024. [PMID: 39051970 DOI: 10.1021/acsnano.4c04219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
Electrorefinery of polybutylene terephthalate (PBT) waste plastic, specifically conversion of a PBT-derived 1,4-butanediol (BDO) monomer into value-added succinate coupled with H2 production, emerges as an auspicious strategy to mitigate severe plastic pollution. Herein, we report the synthesis of Mn-doped NiNDA nanosheets (NDA: 2,6-naphthalenedicarboxylic acid), a metal-organic framework (MOF) through a ligand exchange method, and its utilization for electrocatalytic BDO oxidation to succinate. Interestingly, the transformation of doped layered-hydroxide (d-LH) precursors to MOF promotes BDO oxidation while hindering the competitive oxygen evolution reaction. Experimental and theoretical results indicate that the MOF has a higher affinity (i.e., alcoholophilic) for BDO than the d-LH, while Mn doping into NiNDA results in electron accumulation at Ni sites with an upward shift in the d-band center and convenient spin-dependent charge transfer, which are all beneficial for BDO oxidation. The as-constructed two-electrode membrane-electrode assembly (MEA) flow cell, by coupling BDO oxidation and hydrogen evolution reaction, attains an industrial current density of 1.5 A cm-2@1.82 V at 50 °C, corresponding to a specific energy consumption of 3.68 kWh/Nm3 H2. This represents an energy saving of >25% for hydrogen production on an industrial scale compared to conventional water electrolysis (∼5 kWh/Nm3 H2) in addition to the production of valuable chemicals.
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Affiliation(s)
- Dengke Xiong
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Xiaoyang He
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Xuan Liu
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Kaiyan Zhang
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Zhentao Tu
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Jianying Wang
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Shi-Gang Sun
- State Key Lab of Physical Chemistry of Solid Surface, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - Zuofeng Chen
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
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70
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Dinda S, Bhavana R, Behera S, Mondal B. Metal-free electrocatalytic upcycling of polyethylene terephthalate plastic to C 2 products. Chem Commun (Camb) 2024; 60:7777-7780. [PMID: 38976316 DOI: 10.1039/d4cc01609b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
Polyethylene terephthalate (PET) is one of the most used polymers, but the non-degradable and persistent nature of PET waste in the environment is a global menace. Hence upcycling PET waste becomes indispensable. Herein, we introduce the first metal-free electrochemical-upcycling of PET into value-added chemicals and H2 fuel using an organo-electrocatalyst (2,2,6,6-Tetramethylpiperidin-1-yl)oxyl (TEMPO). Electrolysis at pH 10 produces glycolate and oxalate exclusively while at pH 14, over-oxidation and subsequent C-C bond cleavage produce formate and carbonate as well. Tuning the rate and product selectivity via pH regulation with mechanistic insight displays a sustainable route to implement waste PET recycling.
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Affiliation(s)
- Soumitra Dinda
- Department of Chemistry, IIT Gandhinagar, Palaj, Gandhinagar-382355, Gujarat, India.
| | - R Bhavana
- Department of Chemistry, IIT Gandhinagar, Palaj, Gandhinagar-382355, Gujarat, India.
| | - Snehanjali Behera
- Department of Chemistry, IIT Gandhinagar, Palaj, Gandhinagar-382355, Gujarat, India.
| | - Biswajit Mondal
- Department of Chemistry, IIT Gandhinagar, Palaj, Gandhinagar-382355, Gujarat, India.
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71
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Zhang D, Li J, Ju P, Cao W, Jiang F, Sun C. Occurrence of microplastics in the Haima cold seep area of the South China Sea. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 934:173072. [PMID: 38734093 DOI: 10.1016/j.scitotenv.2024.173072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/15/2024] [Accepted: 05/06/2024] [Indexed: 05/13/2024]
Abstract
The pollution of deep-sea microplastics has received increasing attention. As a special ecosystem in the deep sea, the cold seep area is of great significance for studying the distribution of microplastics in the deep sea. In this work, the distribution and characteristics of microplastics in seawater, sediments, and shellfish in the Haima cold seep area and the correlation between the characteristics of microplastics in different media and the type of media were studied. Microplastics were found in all three media. The abundance of microplastics in different samples from the Haima cold seep area ranged 1.8-3.8 items/L for the seawater, 11.47-96.8 items/kg (d.w.) for the surface sediments, and 0-5 items/individual (0-0.714 items/g) for the shellfish. The amount of microplastics ingested by shellfish varied among different species. The microplastics in these three media were mainly fibrous, dark-colored, small-sized rayon, polyethylene terephthalate (PET), and polyethylene (PE). In the correlation analysis of microplastic characteristics among the three media, it was found that the characteristics of microplastics in different media in the same area were closely related, and each pair of variables showed a significant positive correlation (P ≤ 0.05). The distinctive geographical conditions would accelerate the interchange of microplastics among various media. Principal component analysis showed that habitat contribute to microplastic feature differences in shellfish. Differences in correlation were observed between the characteristics of shellfish microplastics in different regions and the characteristics of microplastics in surrounding seawater and sediments.
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Affiliation(s)
- Di Zhang
- Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Jingxi Li
- Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Peng Ju
- Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Wei Cao
- Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Fenghua Jiang
- Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Chengjun Sun
- Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China; Qingdao National Laboratory of Marine Science and Technology, Laboratory of Marine Drugs and Biological Products, Qingdao 266071, China.
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Wu Y, Li Z, Deng Y, Bian B, Xie L, Lu X, Tian J, Zhang Y, Wang L. Mangrove mud clam as an effective sentinel species for monitoring changes in coastal microplastic pollution. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134617. [PMID: 38749247 DOI: 10.1016/j.jhazmat.2024.134617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 05/06/2024] [Accepted: 05/12/2024] [Indexed: 05/30/2024]
Abstract
The worldwide mangrove shorelines are experiencing considerable contamination from microplastics (MPs). Finding an effective sentinel species in the mangrove ecosystem is crucial for early warning of ecological and human health risks posed by coastal microplastic pollution. This study collected 186 specimens of the widely distributed mangrove clam (Geloina expansa, Solander, 1786) from 18 stations along the Leizhou Peninsula, the largest mangrove coast in Southern China. This study discovered that mangrove mud clams accumulated a relatively high abundance of MPs (2.96 [1.61 - 6.03] items·g-1) in their soft tissue, wet weight, as compared to previously reported levels in bivalves. MPs abundance is significantly (p < 0.05 or 0.0001) influenced by coastal urban development, aquaculture, and shell size. Furthermore, the aggregated MPs exhibit a significantly high polymer risk index (Level III, H = 353.83). The estimated annual intake risk (EAI) from resident consumption, as calculated via a specific questionnaire survey, was at a moderate level (990 - 2475, items·g -1·Capita -1). However, the EAI based on suggested nutritional standards is very high, reaching 113,990 (79,298 - 148,681), items·g -1·Capita -1. We recommend utilizing the mangrove mud clam as sentinel species for the monitoring of MPs pollution changing across global coastlines.
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Affiliation(s)
- Yinglin Wu
- Western Guangdong Provincial Engineering Technology Research Center of Seafood Resource Sustainable Utilization, Lingnan Normal University, Zhanjiang 524048, Guangdong, People's Republic of China; School of Life Science and Technology, Lingnan Normal University, Zhanjiang 524048, People's Republic of China.
| | - Zitong Li
- School of Life Science and Technology, Lingnan Normal University, Zhanjiang 524048, People's Republic of China
| | - Yanxia Deng
- School of Life Science and Technology, Lingnan Normal University, Zhanjiang 524048, People's Republic of China
| | - Bingbing Bian
- School of Life Science and Technology, Lingnan Normal University, Zhanjiang 524048, People's Republic of China
| | - Ling Xie
- School of Life Science and Technology, Lingnan Normal University, Zhanjiang 524048, People's Republic of China
| | - Xianye Lu
- School of Life Science and Technology, Lingnan Normal University, Zhanjiang 524048, People's Republic of China
| | - Jingqiu Tian
- School of Life Science and Technology, Lingnan Normal University, Zhanjiang 524048, People's Republic of China
| | - Ying Zhang
- School of Life Science and Technology, Lingnan Normal University, Zhanjiang 524048, People's Republic of China
| | - Liyun Wang
- School of Life Science and Technology, Lingnan Normal University, Zhanjiang 524048, People's Republic of China
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73
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Mboglen D, Gong Y, Guo Z, Ngo Nola D, Li Y. First report of plastic and non-plastic microparticles in stomach of slandertail lanternshark and shortspine spurdog from the edge of East China Sea. MARINE POLLUTION BULLETIN 2024; 204:116531. [PMID: 38823373 DOI: 10.1016/j.marpolbul.2024.116531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 05/17/2024] [Accepted: 05/28/2024] [Indexed: 06/03/2024]
Abstract
This study investigates the presence of plastic and non-plastic microparticles in the gastrointestinal tracts of two deep-sea sharks, Etmopterus molleri (n = 118) and Squalus mitsukurii (n = 6), bycatch from the East China Sea continental shelf. We found a total of 117 microparticles, predominantly fibres (67.52 %), with blue (31.62 %) and black (23.94 %) being the most prevalent colours. E. molleri contained 70 microparticles (0.63 ± 0.93 items/shark), 61.42 % non-plastics like viscose and cotton, while plastics included polyethylene, polyethylene terephthalate, and acrylic. Despite S. mitsukurii's limited sample size, the results show that it takes in a lot of microparticles (47 microparticles, 7.83 ± 2.64 items/shark), 57.44 % non-plastics (viscose, cotton, and ethyl cellulose), and 42.56 % plastics. A positive correlation between microparticle presence and total length was observed for E. molleri. These results provide initial data on microparticle ingestion by these species, highlighting potential ecological risks and trophic transfer implications in deep-sea ecosystems.
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Affiliation(s)
- David Mboglen
- College of Marine Living Resources and Management, Shanghai Ocean University, 999 Huchenghuan Rd., Shanghai, China; Institute of Research for Agriculture and Development (IRAD), Specialized Research Station on Marine Ecosystems, Antenne d'Ebodjé, 219 Kribi, Cameroon
| | - Yi Gong
- College of Marine Living Resources and Management, Shanghai Ocean University, 999 Huchenghuan Rd., Shanghai, China; The key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, 999 Huchenghuan Rd., Shanghai, China; National Engineering Research Centre for Oceanic Fisheries, Shanghai Ocean University, Shanghai, China.
| | - Zehao Guo
- College of Marine Living Resources and Management, Shanghai Ocean University, 999 Huchenghuan Rd., Shanghai, China
| | - Dorine Ngo Nola
- College of Marine Living Resources and Management, Shanghai Ocean University, 999 Huchenghuan Rd., Shanghai, China
| | - Yunkai Li
- College of Marine Living Resources and Management, Shanghai Ocean University, 999 Huchenghuan Rd., Shanghai, China; The key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, 999 Huchenghuan Rd., Shanghai, China; National Engineering Research Centre for Oceanic Fisheries, Shanghai Ocean University, Shanghai, China.
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74
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Kuprijanov I, Buhhalko N, Eriksson U, Sjöberg V, Rotander A, Kolesova N, Lipp M, Buschmann F, Hashmi A, Liblik T, Lehtonen KK. A case study on microlitter and chemical contaminants: Assessing biological effects in the southern coast of the Gulf of Finland (Baltic sea) using the mussel Mytilus trossulus as a bioindicator. MARINE ENVIRONMENTAL RESEARCH 2024; 199:106628. [PMID: 38968804 DOI: 10.1016/j.marenvres.2024.106628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 05/09/2024] [Accepted: 06/29/2024] [Indexed: 07/07/2024]
Abstract
Chemical and microlitter (ML) pollution in three Estonian coastal areas (Baltic Sea) was investigated using mussels (Mytilus trossulus). Polycyclic aromatic hydrocarbons (PAH) in mussel tissues were observed in moderate levels with high bioaccumulation factors for the more hydrophilic and low molecular weight PAH (LMW PAH), namely anthracene and fluorene. Tissue concentrations of polybrominated diphenyl ethers (PBDE) and cadmium within mussel populations exceeded the Good Environmental Status thresholds by more than 200% and 60%, respectively. Multiple contamination at the Muuga Harbour site by tributyltin, high molecular weight PAH, including the highly toxic benzo[c]fluorene and PBDE, coincided with the inhibition of acetylcholinesterase activity and a lower condition index of the mussels. The metabolization and removal of bioaccumulated LMW PAH, reflected in the dominance of oxy-PAH such as anthracene-9,10-dione, is likely associated with the increased activity of glutathione S-transferase in caged mussels. Only a few microplastic particles were observed among the ML in mussel tissues, with coloured cellulose-based microfibers being the most prevalent. The average concentration of ML in mussels was significantly higher at the harbour area than at other sites. The integrated biomarker response index values allowed for the differentiation of pollution levels across studied locations representing high, intermediate, and low pollution levels within the studied area.
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Affiliation(s)
- Ivan Kuprijanov
- Department of Marine Systems, Tallinn University of Technology, Akadeemia Tee 15a, 12618, Tallinn, Estonia.
| | - Natalja Buhhalko
- Department of Marine Systems, Tallinn University of Technology, Akadeemia Tee 15a, 12618, Tallinn, Estonia
| | - Ulrika Eriksson
- School of Science and Technology, Örebro University, Grenadjärgatan 8, 703 65, Örebro, Sweden
| | - Viktor Sjöberg
- School of Science and Technology, Örebro University, Grenadjärgatan 8, 703 65, Örebro, Sweden
| | - Anna Rotander
- School of Science and Technology, Örebro University, Grenadjärgatan 8, 703 65, Örebro, Sweden
| | - Natalja Kolesova
- Department of Marine Systems, Tallinn University of Technology, Akadeemia Tee 15a, 12618, Tallinn, Estonia
| | - Maarja Lipp
- Department of Marine Systems, Tallinn University of Technology, Akadeemia Tee 15a, 12618, Tallinn, Estonia
| | - Fred Buschmann
- Department of Marine Systems, Tallinn University of Technology, Akadeemia Tee 15a, 12618, Tallinn, Estonia
| | - Arslan Hashmi
- School of Science and Technology, Örebro University, Grenadjärgatan 8, 703 65, Örebro, Sweden
| | - Taavi Liblik
- Department of Marine Systems, Tallinn University of Technology, Akadeemia Tee 15a, 12618, Tallinn, Estonia
| | - Kari K Lehtonen
- Marine and Freshwater Solutions Unit, Finnish Environment Institute (Syke), Agnes Sjöbergin Katu 2, FI-00790, Helsinki, Finland
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75
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Nawaz T, Gu L, Gibbons J, Hu Z, Zhou R. Bridging Nature and Engineering: Protein-Derived Materials for Bio-Inspired Applications. Biomimetics (Basel) 2024; 9:373. [PMID: 38921253 PMCID: PMC11201842 DOI: 10.3390/biomimetics9060373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 06/11/2024] [Accepted: 06/13/2024] [Indexed: 06/27/2024] Open
Abstract
The sophisticated, elegant protein-polymers designed by nature can serve as inspiration to redesign and biomanufacture protein-based materials using synthetic biology. Historically, petro-based polymeric materials have dominated industrial activities, consequently transforming our way of living. While this benefits humans, the fabrication and disposal of these materials causes environmental sustainability challenges. Fortunately, protein-based biopolymers can compete with and potentially surpass the performance of petro-based polymers because they can be biologically produced and degraded in an environmentally friendly fashion. This paper reviews four groups of protein-based polymers, including fibrous proteins (collagen, silk fibroin, fibrillin, and keratin), elastomeric proteins (elastin, resilin, and wheat glutenin), adhesive/matrix proteins (spongin and conchiolin), and cyanophycin. We discuss the connection between protein sequence, structure, function, and biomimetic applications. Protein engineering techniques, such as directed evolution and rational design, can be used to improve the functionality of natural protein-based materials. For example, the inclusion of specific protein domains, particularly those observed in structural proteins, such as silk and collagen, enables the creation of novel biomimetic materials with exceptional mechanical properties and adaptability. This review also discusses recent advancements in the production and application of new protein-based materials through the approach of synthetic biology combined biomimetics, providing insight for future research and development of cutting-edge bio-inspired products. Protein-based polymers that utilize nature's designs as a base, then modified by advancements at the intersection of biology and engineering, may provide mankind with more sustainable products.
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Affiliation(s)
- Taufiq Nawaz
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA;
| | - Liping Gu
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA;
| | | | - Zhong Hu
- Department of Mechanical Engineering, South Dakota State University, Brookings, SD 57007, USA;
| | - Ruanbao Zhou
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA;
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76
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Ni H, Li H, Hou W, Chen J, Miao S, Wang Y, Li H. From sea to sea: Edible, hydrostable, and degradable straws based on seaweed-derived insoluble cellulose fibers and soluble polysaccharides. Carbohydr Polym 2024; 334:122038. [PMID: 38553205 DOI: 10.1016/j.carbpol.2024.122038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 03/01/2024] [Accepted: 03/07/2024] [Indexed: 04/02/2024]
Abstract
The widespread use of disposable plastic straws has caused a long-lasting environmental problem. Potential alternatives for plastic straws are far from satisfactory due to the low utility, poor water stability, and non-ideal natural degradability. In this work, an edible, hydrostable, and degradable straw was developed from the economically significant seaweed. Seaweed-derived insoluble cellulose fibers were used as the building block of the straw, and the soluble polysaccharide extracts were explored as the natural glue through the chelation with Ca2+. Repeated freeze-thawing was introduced to strengthen the molecular interactions, which further improved its mechanical stability and hydrostability. The straw exhibited remarkable natural degradability in open environments, particularly in marine-mimicking conditions. By incorporating pH-sensitive food pigments, the straws could indicate acid-base property of a beverage or even discriminate the freshness of milk. The versatile seaweed-derived straw adhered to the biocycle concept of "from sea to sea" to alleviate the burden of white pollution on oceans.
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Affiliation(s)
- Haojie Ni
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, PR China; School of Food and Health, Beijing Technology and Business University, Beijing 100048, PR China
| | - Huatao Li
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Wenna Hou
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Jian Chen
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Song Miao
- Department of Food Chemistry and Technology, Teagasc Food Research Centre, Moorepark, Ireland
| | - Yanbo Wang
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, PR China
| | - Huan Li
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, PR China.
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77
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Jacquin J, Budinich M, Chaffron S, Barbe V, Lombard F, Pedrotti ML, Gorsky G, Ter Halle A, Bruzaud S, Kedzierski M, Ghiglione JF. Niche partitioning and plastisphere core microbiomes in the two most plastic polluted zones of the world ocean. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:41118-41136. [PMID: 38844633 DOI: 10.1007/s11356-024-33847-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 05/25/2024] [Indexed: 06/21/2024]
Abstract
Plastics are offering a new niche for microorganisms colonizing their surface, the so-called "plastisphere," in which diversity and community structure remain to be characterized and compared across ocean pelagic regions. Here, we compared the bacterial diversity of microorganisms living on plastic marine debris (PMD) and the surrounding free-living (FL) and organic particle-attached (PA) lifestyles sampled during the Tara expeditions in two of the most plastic polluted zones in the world ocean, i.e., the North Pacific gyre and the Mediterranean Sea. The 16S rRNA gene sequencing analysis confirmed that PMD are a new anthropogenic ocean habitat for marine microbes at the ocean-basin-scale, with clear niche partitioning compared to FL and PA lifestyles. At an ocean-basin-scale, the composition of the plastisphere communities was mainly driven by environmental selection, rather than polymer types or dispersal effect. A plastisphere "core microbiome" could be identified, mainly dominated by Rhodobacteraceae and Cyanobacteria. Predicted functions indicated the dominance of carbon, nitrogen and sulfur metabolisms on PMD that open new questions on the role of the plastisphere in a large number of important ecological processes in the marine ecosystem.
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Affiliation(s)
- Justine Jacquin
- UMR 7621, Laboratoire d'Océanographie Microbienne (LOMIC), CNRS, Sorbonne Université, 1 Avenue Fabre, 66650, Banyuls Sur Mer, France
| | - Marko Budinich
- Laboratoire Adaptation Et Diversité en Milieu Marin, Station Biologique de Roscoff, CNRS, Sorbonne Université, Roscoff, France
- Research Federation for the Study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans GOSEE, Paris, France
| | - Samuel Chaffron
- Research Federation for the Study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans GOSEE, Paris, France
- École Centrale Nantes, CNRS, LS2N, UMR 6004, Nantes Université, F-44000, Nantes, France
| | - Valérie Barbe
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, Evry, France
| | - Fabien Lombard
- UMR 7076, Laboratoire d'Océanographie de Villefranche, Sorbonne Université, CNRS, Villefranche Sur Mer, France
| | - Maria-Luiza Pedrotti
- UMR 7076, Laboratoire d'Océanographie de Villefranche, Sorbonne Université, CNRS, Villefranche Sur Mer, France
| | - Gabriel Gorsky
- UMR 7076, Laboratoire d'Océanographie de Villefranche, Sorbonne Université, CNRS, Villefranche Sur Mer, France
| | - Alexandra Ter Halle
- Laboratoire SOFMAT, CNRS, Université de Toulouse III-Paul Sabatier, UMR 5623, Toulouse, France
| | - Stéphane Bruzaud
- UMR CNRS 6027, Institut de Recherche Dupuy de Lôme (IRDL), Université de Bretagne-Sud, Lorient, France
| | - Mikaël Kedzierski
- UMR CNRS 6027, Institut de Recherche Dupuy de Lôme (IRDL), Université de Bretagne-Sud, Lorient, France
| | - Jean-François Ghiglione
- UMR 7621, Laboratoire d'Océanographie Microbienne (LOMIC), CNRS, Sorbonne Université, 1 Avenue Fabre, 66650, Banyuls Sur Mer, France.
- Research Federation for the Study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans GOSEE, Paris, France.
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78
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Park B, Cho B, Cho J, Kim T. Microplastic Contamination of a Benthic Ecosystem in a Hydrothermal Vent. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:7636-7642. [PMID: 38629715 DOI: 10.1021/acs.est.4c02811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Plastic contamination is a global pervasive issue, extending from coastal areas and open oceans to polar regions and even the deep sea. Microplastic (MP) contamination in hydrothermal vents, which are known for their high biodiversity even under extreme conditions, has remained largely unexplored. Here, we present, for the first time, MP pollution in a deep-sea hydrothermal vent at one of the biodiversity hotspots─the Central Indian Ridge. Not only the environment (seawater: 2.08 ± 1.04 MPs/L, surface sediments: 0.57 ± 0.19 MP/g) but also all six major benthic species investigated were polluted by MPs. MPs mainly consisted of polypropylene, polyethylene terephthalate, and polystyrene fragments ≤100 μm and were characterized as being either transparent or white in color. Remarkably, bioaccumulation and even biomagnification of microplastics were observed in the top predators of the ecosystem, such as squat lobsters (14.25 ± 4.65 MPs/individual) and vent crabs (14.00 ± 2.16 MPs/individual), since they contained more MPs than animals at lower trophic levels (e.g., mussels and snails, 1.75-6.00 average MPs/individuals). These findings reveal MP contamination of an ecosystem in a hydrothermal vent, thereby suggesting that their accumulation and magnification can occur in top-level animals, even within remote and extreme environments.
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Affiliation(s)
- Byeongyong Park
- Program in Biomedical Science and Engineering, Inha University, Incheon 22212, Republic of Korea
- Department of Ocean Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Boongho Cho
- Program in Biomedical Science and Engineering, Inha University, Incheon 22212, Republic of Korea
- Department of Ocean Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Jaemin Cho
- Program in Biomedical Science and Engineering, Inha University, Incheon 22212, Republic of Korea
- Department of Ocean Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Taewon Kim
- Program in Biomedical Science and Engineering, Inha University, Incheon 22212, Republic of Korea
- Department of Ocean Sciences, Inha University, Incheon 22212, Republic of Korea
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79
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Quan L, Jiang H, Mei G, Sun Y, You B. Bifunctional Electrocatalysts for Overall and Hybrid Water Splitting. Chem Rev 2024; 124:3694-3812. [PMID: 38517093 DOI: 10.1021/acs.chemrev.3c00332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Electrocatalytic water splitting driven by renewable electricity has been recognized as a promising approach for green hydrogen production. Different from conventional strategies in developing electrocatalysts for the two half-reactions of water splitting (e.g., the hydrogen and oxygen evolution reactions, HER and OER) separately, there has been a growing interest in designing and developing bifunctional electrocatalysts, which are able to catalyze both the HER and OER. In addition, considering the high overpotentials required for OER while limited value of the produced oxygen, there is another rapidly growing interest in exploring alternative oxidation reactions to replace OER for hybrid water splitting toward energy-efficient hydrogen generation. This Review begins with an introduction on the fundamental aspects of water splitting, followed by a thorough discussion on various physicochemical characterization techniques that are frequently employed in probing the active sites, with an emphasis on the reconstruction of bifunctional electrocatalysts during redox electrolysis. The design, synthesis, and performance of diverse bifunctional electrocatalysts based on noble metals, nonprecious metals, and metal-free nanocarbons, for overall water splitting in acidic and alkaline electrolytes, are thoroughly summarized and compared. Next, their application toward hybrid water splitting is also presented, wherein the alternative anodic reactions include sacrificing agents oxidation, pollutants oxidative degradation, and organics oxidative upgrading. Finally, a concise statement on the current challenges and future opportunities of bifunctional electrocatalysts for both overall and hybrid water splitting is presented in the hope of guiding future endeavors in the quest for energy-efficient and sustainable green hydrogen production.
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Affiliation(s)
- Li Quan
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Hui Jiang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Guoliang Mei
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Yujie Sun
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Bo You
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
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80
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Sun Y, Deng Q, Zhang Q, Zhou X, Chen R, Li S, Wu Q, Chen H. Hazards of microplastics exposure to liver function in fishes: A systematic review and meta-analysis. MARINE ENVIRONMENTAL RESEARCH 2024; 196:106423. [PMID: 38442589 DOI: 10.1016/j.marenvres.2024.106423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 01/30/2024] [Accepted: 02/24/2024] [Indexed: 03/07/2024]
Abstract
Microplastics (5 mm - 1 μm) have become one of the major pollutants in the environment. Numerous studies have shown that microplastics can have negative impacts on aquatic organisms, affecting their liver function levels. However, the extent of these effects and their potential toxicological mechanisms are largely unknown. In this study, a meta-analysis and systematic review were conducted to assess the effects of microplastics on fish liver function and summarize the potential toxicological mechanisms of microplastic-induced liver toxicity. The meta-analysis results indicate that compared to the control group, exposure to microplastics significantly affects fish liver indicators: aspartate aminotransferase (AST) (p < 0.001), alanine aminotransferase (ALT) (p < 0.001), alkaline phosphatase (ALP) (p < 0.001), total protein (TP) (p < 0.001), and lactate dehydrogenase (LDH) (p < 0.001), including oxidative stress indicators: superoxide dismutase (SOD) (p < 0.001), glutathione S-transferase (GST) (p < 0.001), glutathione (GSH) (p < 0.001), and malondialdehyde (MDA) (p < 0.001) in fish liver. For fish living in different environments, the potential toxicological mechanisms of microplastics exposure on fish liver may exhibit some differences. For freshwater fish, the mechanism may be that microplastics exposure causes overproduction of reactive oxygen species (ROS) in fish hepatocyte mitochondria. ROS promotes the expression of toll-like receptor 2 (TLR2) and activates downstream molecules myeloid differentiation factor 88 (MyD88) and tumor necrosis factor receptor-associated factor 6 (TRAF6) of the TLR2 signaling pathway, leading to phosphorylation of NF-κB p65. This leads to the release of inflammatory factors and oxidative stress and inflammation in fish liver. In addition, for seawater fish, the mechanism may be that microplastics exposure can cause damage or death of fish hepatocytes, leading to continuous pathological changes, inflammation, lipid and energy metabolism disorders, thereby causing significant changes in liver function indexes.
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Affiliation(s)
- Yu Sun
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China; Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, 550001, China
| | - Qingfang Deng
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China; Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, 550001, China
| | - Qiurong Zhang
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China; Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, 550001, China
| | - Xin Zhou
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China; Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, 550001, China
| | - Ruhai Chen
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China; Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, 550001, China
| | - Siyu Li
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China; Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, 550001, China
| | - Qing Wu
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China; Innovation Laboratory, The Third Experiment Middle School, China
| | - Huaguo Chen
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China; Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, 550001, China.
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Xie P, Li P, Zhu X, Chen D, Ommati MM, Wang H, Han L, Xu S, Sun P. Hepatotoxic of polystyrene microplastics in aged mice: Focus on the role of gastrointestinal transformation and AMPK/FoxO pathway. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 917:170471. [PMID: 38296072 DOI: 10.1016/j.scitotenv.2024.170471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/05/2024]
Abstract
Microplastic (MP) toxicity has attracted widespread attention, whereas before triggering hepatotoxicity, ingested MPs first undergo transportation and digestion processes in the gastrointestinal tract, possibly interacting with the gastrointestinal contents (GIC). More alarming is the need for more understanding of how this process may impact the liver health of aged animals. This study selected old mice. Firstly, we incubated polystyrene microplastics (PS-MPs, 1 μm) with GIC extract. The results of SEM/EDS indicated a structural alteration in PS-MPs. Additionally, impurities resembling corona, rich in heteroatoms (O, N, and S), were observed. This resulted in an enhanced aggregating phenomenon of MPs. We conducted a 10-day experiment exposing aged mice to four concentrations of PS-MPs, ranging from 1 × 103 to 1 × 1012 particles/L. Subsequent measurements of tissue pathology and body and organ weights were conducted, revealing alterations in liver structure. In the liver, 12 crucial metabolites were found by LC-MS technology, including purines, lipids, and amino acids. The AMPK/FoxO pathway was enriched, activated, and validated in western blotting results. We also comprehensively examined the innate immune system, inflammatory factors, and oxidative stress indicators. The results indicated decreased C3 levels, stable C4 levels, inflammatory factors (IL-6 and IL-8), and antioxidant enzymes were increased to varying degrees. PS-MPs also caused DNA oxidative damage. These toxic effects exhibited a specific dose dependence. Overall, after the formation of the gastrointestinal corona, PS-MPs subsequently impact various cellular processes, such as cycle arrest (p21), leading to hepatic and health crises in the elderly. The presence of gastrointestinal coronas also underscores the MPs' morphology and characteristics, which should be distinguished after ingestion.
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Affiliation(s)
- Pengfei Xie
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan 471003, China
| | - Pengcheng Li
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan 471003, China
| | - Xiaoshan Zhu
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan 471003, China
| | - Deshan Chen
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan 471003, China
| | - Mohammad Mehdi Ommati
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan 471003, China
| | - Hongwei Wang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan 471003, China
| | - Lei Han
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan 471003, China
| | - Shixiao Xu
- Northwest Institute of Plateau Biology Chinese Academy of Sciences, Xining, Qinghai 810008, China
| | - Ping Sun
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan 471003, China.
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82
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De Boever S, Devisscher L, Vinken M. Unraveling the micro- and nanoplastic predicament: A human-centric insight. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 916:170262. [PMID: 38253106 DOI: 10.1016/j.scitotenv.2024.170262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/02/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024]
Abstract
Micro- and nanoplastics are vast anthropogenic pollutants in our direct surroundings with a robust environmental stability and a potential for a long-lasting and increasing global circulation. This has raised concerns among the public and policy makers for human health upon exposure to these particles. The micro- and nanoplastic burden on humans is currently under debate, along with criticism on the experimental approaches used in hazard assessment. The present review presents an overview of the human-relevant aspects associated with the current micro-and nanoplastic burden. We focus on environmental circulation and the estimation of exposure quantities to humans, along with a state-of-the-art overview of particle accumulation in over 15 human organs and other specimen. Additionally, data regarding particle characteristics used in toxicity testing was extracted from 91 studies and discussed considering their environmental and human relevance.
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Affiliation(s)
- Sybren De Boever
- Entity of In Vitro Toxicology and Dermato-Cosmetology, Department of Pharmaceutical and Pharmacological Sciences, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Brussels, Belgium.
| | - Lindsey Devisscher
- Gut-Liver Immunopharmacology Unit, Basic and Applied Medical Sciences, Liver Research Centre Ghent, Faculty of Medicine and Health Sciences, Universiteit Gent, Corneel Heymanslaan 10, 9000 Ghent, Belgium
| | - Mathieu Vinken
- Entity of In Vitro Toxicology and Dermato-Cosmetology, Department of Pharmaceutical and Pharmacological Sciences, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Brussels, Belgium
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83
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Reece JK, Dorrell RM, Straub KM. Circulation of hydraulically ponded turbidity currents and the filling of continental slope minibasins. Nat Commun 2024; 15:2075. [PMID: 38453890 PMCID: PMC10920650 DOI: 10.1038/s41467-024-46120-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 02/15/2024] [Indexed: 03/09/2024] Open
Abstract
Natural depressions on continental margins termed minibasins trap turbidity currents, a class of sediment-laden seafloor density driven flow. These currents are the primary downslope vectors for clastic sediment, particulate organic carbon, and microplastics. Here, we establish a method that facilitates long-distance self-suspension of dilute sediment-laden flows, enabling study of turbidity currents with appropriately scaled natural topography. We show that flow dynamics in three-dimensional minibasins are dominated by circulation cell structures. While fluid rotation is mainly along a horizontal plane, inwards spiraling flow results in strong upwelling jets that reduce the ability of minibasins to trap particulate organic carbon, microplastics, and fine-grained clastic sediment. Circulation cells are the prime mechanism for distributing particulates in minibasins and set the geometry of deposits, which are often intricate and below the resolution of geophysical surveys. Fluid and sediment are delivered to circulation cells by turbidity currents that runup the distal wall of minibasins. The magnitude of runup increases with the discharge rate of currents entering minibasins, which influences the amount of sediment that is either trapped in minibasins or spills to downslope environs and determines the height that deposits onlap against minibasin walls.
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Affiliation(s)
- J Kevin Reece
- Department of Earth and Environmental Sciences, Tulane University, New Orleans, LA, 70118, USA.
| | - Robert M Dorrell
- Energy and Environment Institute, University of Hull, Hull, HU6 7RX, UK
| | - Kyle M Straub
- Department of Earth and Environmental Sciences, Tulane University, New Orleans, LA, 70118, USA
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84
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Plafcan MM, Schwing PT, Romero IC, Brooks GR, Larson RA, O'Malley BJ, Stallings CD. Benthic foraminifera in Gulf of Mexico show temporal and spatial dynamics of microplastics. MARINE POLLUTION BULLETIN 2024; 200:116090. [PMID: 38316101 DOI: 10.1016/j.marpolbul.2024.116090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/26/2024] [Accepted: 01/27/2024] [Indexed: 02/07/2024]
Abstract
Microplastics have accumulated in the environment since plastic production began, with present-day observations that range from marine trenches to mountains. However, research on microplastics has only recently begun so it is unclear how they have changed over time in many oceanic regions. Our study addressed this gap by quantifying the temporal and spatial dynamics of microplastics in two deep-water regions of the Gulf of Mexico (GOM). We isolated agglutinated foraminifera from sediment cores and assessed microplastics that were incorporated into their tests. Our results indicated that microplastics were incorporated by agglutinated foraminifera after plastic production began. Microplastics were higher at deep-water sites and closer to the Mississippi River. This study confirms the presence of microplastic incorporation into agglutinated foraminifera tests and investigates microplastics in deep-water sediments in the GOM. Additional work is needed to fully identify the distribution of microplastics across the GOM and other oceanic basins.
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Affiliation(s)
- Martina M Plafcan
- College of Marine Science, University of South Florida, 830 1st St S, St. Petersburg, FL 33701, USA.
| | | | - Isabel C Romero
- College of Marine Science, University of South Florida, 830 1st St S, St. Petersburg, FL 33701, USA.
| | - Gregg R Brooks
- Eckerd College, 4200 54th Ave S, St. Petersburg, FL 33711, USA.
| | | | | | - Christopher D Stallings
- College of Marine Science, University of South Florida, 830 1st St S, St. Petersburg, FL 33701, USA.
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85
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Zhang C, Liu A, Bahar M. Editorial: Microbial response to emerging contaminants in soil and sediment ecosystems. Front Microbiol 2024; 15:1371223. [PMID: 38414767 PMCID: PMC10897971 DOI: 10.3389/fmicb.2024.1371223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 01/30/2024] [Indexed: 02/29/2024] Open
Affiliation(s)
- Cheng Zhang
- School of Environment & Ecology, Jiangnan University, Wuxi, China
| | - Aiju Liu
- School of Resources and Environmental Engineering, Shandong University of Technology, Zibo, China
| | - Mezbaul Bahar
- Global Centre for Environmental Remediation, The University of Newcastle, Callaghan, NSW, Australia
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86
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He C, Liu C, Pan S, Tan Y, Guan J, Xu H. Polyurethane with β-Selenocarbonyl Structure Enabling the Combination of Plastic Degradation and Waste Upcycling. Angew Chem Int Ed Engl 2024; 63:e202317558. [PMID: 38156718 DOI: 10.1002/anie.202317558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/16/2023] [Accepted: 12/29/2023] [Indexed: 01/03/2024]
Abstract
Degradable polymers offer a promising solution to mitigate global plastic pollution, but the degraded products often suffer from diminished value. Upcycling is a more sustainable approach to upgrade polymer waste into value-added products. Herein, we report a β-selenocarbonyl-containing polyurethane (SePU), which can be directly degraded under mild conditions into valuable selenium fertilizers for selenium-rich vegetable cultivation globally, enabling both plastic degradation and waste upcycling. Under oxidation condition, this polymer can be easily and selectively degraded via selenoxide elimination reaction from mixed plastic waste. The degraded product can serve as effective selenium fertilizers to increase selenium content in radish and pak choi. The SePU exhibits excellent mechanical properties. Additionally, we observed the formation of spherulites-like selenium particles within the materials during degradation for the first time. Our research offers a successful application of selenoxide elimination reaction in the field of plastic degradation for the first time, endowing plastics with both degradability and high reusable value. This strategy provides a promising solution to reduce pollution and improve economy and sustainability of plastics.
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Affiliation(s)
- Chaowei He
- Key Lab of Organic Optoelectronics & Molecular Engineering and Laboratory of Flexible Electronics Technology, Department of Chemistry, Tsinghua University, 100084, Beijing, China
| | - Cheng Liu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 310027, Hangzhou, Zhejiang, China
| | - Shuojiong Pan
- Key Lab of Organic Optoelectronics & Molecular Engineering and Laboratory of Flexible Electronics Technology, Department of Chemistry, Tsinghua University, 100084, Beijing, China
| | - Yizheng Tan
- Key Lab of Organic Optoelectronics & Molecular Engineering and Laboratory of Flexible Electronics Technology, Department of Chemistry, Tsinghua University, 100084, Beijing, China
| | - Jun Guan
- Key Lab of Organic Optoelectronics & Molecular Engineering and Laboratory of Flexible Electronics Technology, Department of Chemistry, Tsinghua University, 100084, Beijing, China
| | - Huaping Xu
- Key Lab of Organic Optoelectronics & Molecular Engineering and Laboratory of Flexible Electronics Technology, Department of Chemistry, Tsinghua University, 100084, Beijing, China
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87
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Kang P, Zhao Y, Wei T, Cai Y, Ji B, Addo-Bankas O. Interactions between MPs and PFASs in aquatic environments: A dual-character situation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119907. [PMID: 38157575 DOI: 10.1016/j.jenvman.2023.119907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 11/25/2023] [Accepted: 12/11/2023] [Indexed: 01/03/2024]
Abstract
Microplastics (MPs) and per- and polyfluoroalkyl substances (PFASs) have drawn great attention as emerging threats to aquatic ecosystems. Although the literature to study the MPs and PFASs alone has grown significantly, our knowledge of the overlap and interactions between the two contaminations is scarce due to the unawareness of it. Actually, numerous human activities can simultaneously release MPs and PFASs, and the co-sources of the two are common, meaning that they have a greater potential for interactions. The direct interaction lies in the PFASs adsorption by MPs in water with integrated mechanisms including electrostatic and hydrophobic interactions, plus many influence factors. In addition, the existence and transportation of MPs and PFASs in the aquatic environment have been identified. MPs and PFASs can be ingested by aquatic organisms and cause more serious combined toxicity than exposure alone. Finally, curbing strategies of MPs and PFASs are overviewed. Wastewater treatment plants (WWTPs) can be an effective place to remove MPs from wastewater, while they are also an important point source of MPs pollution in water bodies. Although adsorption has proven to be a successful curbing method for PFASs, more technological advancements are required for field application. It is expected that this review can help revealing the unheeded relationship and interaction between MPs and PFASs in aquatic environments, thus assisting the further investigations of both MPs and PFASs as a whole.
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Affiliation(s)
- Peiying Kang
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, PR China; Department of Municipal and Environmental Engineering, School of Water Resources and Hydroelectric Engineering, Xi'an University of Technology, Xi'an, 710048, PR China; Department of Civil, Structural and Environmental Engineering, Trinity College, Dublin, Ireland.
| | - Yaqian Zhao
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, PR China; Department of Municipal and Environmental Engineering, School of Water Resources and Hydroelectric Engineering, Xi'an University of Technology, Xi'an, 710048, PR China.
| | - Ting Wei
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, PR China; Department of Municipal and Environmental Engineering, School of Water Resources and Hydroelectric Engineering, Xi'an University of Technology, Xi'an, 710048, PR China; Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcalá, Madrid, Spain
| | - Yamei Cai
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, PR China; Department of Municipal and Environmental Engineering, School of Water Resources and Hydroelectric Engineering, Xi'an University of Technology, Xi'an, 710048, PR China
| | - Bin Ji
- School of Civil Engineering, Yantai University, Yantai, 264005, PR China
| | - Olivia Addo-Bankas
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, PR China; Department of Municipal and Environmental Engineering, School of Water Resources and Hydroelectric Engineering, Xi'an University of Technology, Xi'an, 710048, PR China
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88
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Tsuchiya M, Kitahashi T, Nakajima R, Oguri K, Kawamura K, Nakamura A, Nakano K, Maeda Y, Murayama M, Chiba S, Fujikura K. Distribution of microplastics in bathyal- to hadal-depth sediments and transport process along the deep-sea canyon and the Kuroshio Extension in the Northwest Pacific. MARINE POLLUTION BULLETIN 2024; 199:115466. [PMID: 37806825 DOI: 10.1016/j.marpolbul.2023.115466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 08/24/2023] [Accepted: 08/27/2023] [Indexed: 10/10/2023]
Abstract
Understanding microplastic (MP) behavior in oceans is crucial for reducing marine plastic pollution. However, the complex process underlying MP transportation to the deep seafloor remains unknown despite the deep sea being considered its major sink. We focused on MP distribution in Sagami Bay (adjacent to highly populated areas of Japan), the plate triple junction connected through the Sagami Trough, and the abyssal plain immediately below the Kuroshio Extension. We observed the highest number of MPs in the abyssal stations, more than previously reported. The polymer types and aspect ratio of MPs in the abyssal stations significantly differed from those in the bathyal/hadal stations. The study suggests that MPs accumulated in the open ocean surface layer sink to the abyssal plains immediately below it, while MPs from land sources accumulate in the bathyal depth and are transported to the hadal depth near the coast through turbidity currents along the submarine canyon.
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Affiliation(s)
- Masashi Tsuchiya
- Research Institute for Global Change (RIGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan.
| | - Tomo Kitahashi
- Research Institute for Global Change (RIGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan; KANSO Technos Co., Ltd., 14 Kandahigashimatsushita-cho, Chiyoda-ku, Tokyo 101-0042, Japan
| | - Ryota Nakajima
- Research Institute for Global Change (RIGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan
| | - Kazumasa Oguri
- Research Institute for Global Change (RIGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan; Danish Center for Hadal Research (HADAL) and Nordcee, Department of Biology, University of Southern Denmark, 5230 Odense M, Denmark
| | - Kiichiro Kawamura
- Graduate School of Science and Technology for Innovation, Yamaguchi University, 1677-1 Yoshida, Yamaguchi-city, Yamaguchi 753-8512, Japan
| | - Akimu Nakamura
- Graduate School of Science and Technology for Innovation, Yamaguchi University, 1677-1 Yoshida, Yamaguchi-city, Yamaguchi 753-8512, Japan
| | - Kengo Nakano
- Graduate School of Science and Technology for Innovation, Yamaguchi University, 1677-1 Yoshida, Yamaguchi-city, Yamaguchi 753-8512, Japan
| | - Yosaku Maeda
- Institute for Marine-Earth Exploration and Engineering Division (MarE3), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan
| | - Masafumi Murayama
- Center for Advanced Marine Core Research, Kochi University, Monobe, Nankoku, Kochi 783-8502, Japan; Faculty of Agriculture and Marine Science, Kochi University, Monobe, Nankoku, Kochi 783-8502, Japan
| | - Sanae Chiba
- Research Institute for Global Change (RIGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan; North Pacific Marine Science Organization (PICES), 9860 West Saanich Road, Sidney, BC, Canada V8L 4B2
| | - Katsunori Fujikura
- Research Institute for Global Change (RIGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan
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89
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Hsu YJ, Huang C, Lee M. Unveiling microplastic spectral signatures under weathering and digestive environments through shortwave infrared hyperspectral sensing. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 342:123106. [PMID: 38070648 DOI: 10.1016/j.envpol.2023.123106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 12/03/2023] [Accepted: 12/04/2023] [Indexed: 01/26/2024]
Abstract
Microplastic (MP) pollution presents a novel challenge for marine environmental protection, necessitating comprehensive and long-term monitoring and assessment approaches. Environmental MPs can undergo weathering and microorganism-related digestive processes, altering their original surface properties and chemical structure, thus complicating their quantification and identification. This study aims to establish a comprehensive hyperspectral database for weathered and digestion-degraded MPs, using a wide variety of polymer types collected as either virgin particles or commercial products (within a size range of approximately 3 mm), and to investigate the impact of these processes on their spectral characteristics. Polypropylene (PP) and polyethylene (PE) MPs exhibited significant responses to weathering treatment, as indicated by the formation of new characteristic peaks or slight peak shifts around 1679-1705 nm, which can be attributed to the formation of carbonyl and vinyl functional groups through Norrish reactions. Similarly, polyethylene terephthalate (PET), acrylonitrile butadiene styrene (ABS), and polystyrene (PS) MPs demonstrated notable degradation following digestive treatment, as evidenced by the emergence of new absorption peaks at approximately 1135-1165 nm, possibly associated with alterations involving carbonyl and vinyl functional groups. The results were further validated based on their comparable spectral characteristics of the resultant MPs to reference polymers and possible additives, considering a reasonably accurate match of approximately 80% for the studied MP samples. This study showcases the significant advantage of using shortwave infrared hyperspectral sensing for rapid identification of virgin and exposed MPs with a relatively large scan area after a simple sample preparation. This approach, combined with other complementary characterization techniques, shall provide highly throughput results for MPs identification. This research provides valuable insights into the features extracted from environmental MPs and establishes a foundation for improving their classification efficiency for environmental applications.
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Affiliation(s)
- Yu-Jhen Hsu
- Department of Safety, Health and Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan
| | - Chihchi Huang
- Department of Safety, Health and Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan
| | - Mengshan Lee
- Department of Safety, Health and Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan.
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90
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Nawaz H, Zhang X, Chen S, Li X, Zhang X, Shabbir I, Xu F. Recent developments in lignin-based fluorescent materials. Int J Biol Macromol 2024; 258:128737. [PMID: 38103672 DOI: 10.1016/j.ijbiomac.2023.128737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/29/2023] [Accepted: 12/08/2023] [Indexed: 12/19/2023]
Abstract
Biomass-based fluorescent materials are an alternative to plastic-based materials for their multifunctional applications. Lignin, an inexpensive and easily available raw material, demonstrates outstanding environment-responsive properties such as pH, metal ions, dyes sensing, bioimaging and so on. To date, only a little work has been reported on the synthesis of lignin-based fluorescent materials. In this review report, synthetic approaches and light-responsive applications of lignin-based fluorescent carbon dots and other materials are summarized. The results reveal that lignin-based fluorescent carbon dots are prepared by hydrothermal method, exhibit small size <10 nm, reveal significant quantum yield, biocompatibility, non-toxicity, photostability and display substantial tunable emission and can be efficiently employed for sensing, bioimaging and energy storage applications. Finally, the forthcoming challenges, investigations, and options open for the chemical and/or physical modification of lignin into fluorescent materials for future applications are well-addressed. To our knowledge, this is the first comprehensive review report on lignin-based fluorescent materials and their light-responsive applications. In addition, this review will attract remarkable consideration and thrust for the researchers and biochemical technologists working with the preparation of lignin-based fluorescent materials for broad applications.
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Affiliation(s)
- Haq Nawaz
- Institute of Biomass Chemistry and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Xun Zhang
- Institute of Biomass Chemistry and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Sheng Chen
- Institute of Biomass Chemistry and Technology, Beijing Forestry University, Beijing 100083, China
| | - Xin Li
- Institute of Biomass Chemistry and Technology, Beijing Forestry University, Beijing 100083, China
| | - Xueming Zhang
- Institute of Biomass Chemistry and Technology, Beijing Forestry University, Beijing 100083, China
| | - Irfan Shabbir
- CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Feng Xu
- Institute of Biomass Chemistry and Technology, Beijing Forestry University, Beijing 100083, China.
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91
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Haddock SHD, Choy CA. Life in the Midwater: The Ecology of Deep Pelagic Animals. ANNUAL REVIEW OF MARINE SCIENCE 2024; 16:383-416. [PMID: 38231738 DOI: 10.1146/annurev-marine-031623-095435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
The water column of the deep ocean is dark, cold, low in food, and under crushing pressures, yet it is full of diverse life. Due to its enormous volume, this mesopelagic zone is home to some of the most abundant animals on the planet. Rather than struggling to survive, they thrive-owing to a broad set of adaptations for feeding, behavior, and physiology. Our understanding of these adaptations is constrained by the tools available for exploring the deep sea, but this tool kit is expanding along with technological advances. Each time we apply a new method to the depths, we gain surprising insights about genetics, ecology, behavior, physiology, diversity, and the dynamics of change. These discoveries show structure within the seemingly uniform habitat, limits to the seemingly inexhaustible resources, and vulnerability in the seemingly impervious environment. To understand midwater ecology, we need to reimagine the rules that govern terrestrial ecosystems. By spending more time at depth-with whatever tools are available-we can fill the knowledge gaps and better link ecology to the environment throughout the water column.
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Affiliation(s)
- Steven H D Haddock
- Monterey Bay Aquarium Research Institute, Moss Landing, California, USA;
| | - C Anela Choy
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA;
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92
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Bae J, Lee J, Hwang WT, Youn DY, Song H, Ahn J, Nam JS, Jang JS, Kim DW, Jo W, Kim TS, Suk HJ, Bae PK, Kim ID. Advancing Breathability of Respiratory Nanofilter by Optimizing Pore Structure and Alignment in Nanofiber Networks. ACS NANO 2024; 18:1371-1380. [PMID: 38060408 DOI: 10.1021/acsnano.3c06060] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
Respiratory masks are the primary and most effective means of protecting individuals from airborne hazards such as droplets and particulate matter during public engagements. However, conventional electrostatically charged melt-blown microfiber masks typically require thick and dense membranes to achieve high filtration efficiency, which in turn cause a significant pressure drop and reduce breathability. In this study, we have developed a multielectrospinning system to address this issue by manipulating the pore structure of nanofiber networks, including the use of uniaxially aligned nanofibers created via an electric-field-guided electrospinning apparatus. In contrast to the common randomly collected microfiber membranes, partially aligned dual-nanofiber membranes, which are fabricated via electrospinning of a random 150 nm nanofiber base layer and a uniaxially aligned 450 nm nanofiber spacer layer on a roll-to-roll collector, offer an efficient way to modulate nanofiber membrane pore structures. Notably, the dual-nanofiber configuration with submicron pore structure exhibits increased fiber density and decreased volume density, resulting in an enhanced filtration efficiency of over 97% and a 50% reduction in pressure drop. This leads to the highest quality factor of 0.0781. Moreover, the submicron pore structure within the nanofiber networks introduces an additional sieving filtration mechanism, ensuring superior filtration efficiency under highly humid conditions and even after washing with a 70% ethanol solution. The nanofiber mask provides a sustainable solution for safeguarding the human respiratory system, as it effectively filters and inactivates human coronaviruses while utilizing 130 times fewer polymeric materials than melt-blown filters. This reusability of our filters and their minimum usage of polymeric materials would significantly reduce plastic waste for a sustainable global society.
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Affiliation(s)
- Jaehyeong Bae
- Department of Chemical Engineering, College of Engineering, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Jiyoung Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Won-Tae Hwang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Doo-Young Youn
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Hyunsub Song
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jaewan Ahn
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jong-Seok Nam
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Ji-Soo Jang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Doo-Won Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Woosung Jo
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Taek-Soo Kim
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Hyeon-Jeong Suk
- Department of Industrial Design, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Pan-Kee Bae
- BioNano Health Guard Research Center, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Il-Doo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
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93
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Chen C, Deng Y, Liu Q, Lai H, Zhang C. Effects of microplastics on cold seep sediment prokaryotic communities. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 341:123008. [PMID: 38006990 DOI: 10.1016/j.envpol.2023.123008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 11/17/2023] [Accepted: 11/18/2023] [Indexed: 11/27/2023]
Abstract
Cold seep sediments are an important reservoir of microplastics (MPs) whose impact on the structure and function of prokaryotic community is not well understood. In this study, the impact of 0.2% and 1% (w/w) polyethylene (PE), polystyrene (PS), and polypropylene (PP) MPs on the cold seep sediment prokaryotic community was investigated in a 120-day laboratory incubation experiment. The results revealed that exposure to MPs altered sedimentary chemical properties in a type- and concentration-dependent manner. Furthermore, MPs significantly altered the structure of bacterial community, with some MPs degradation-associated bacterial phyla significantly increasing (p < 0.05). However, in the case of archaea, the changes in the structure of microbial community were less pronounced (p > 0.05). Co-occurrence network analysis revealed that the addition of MPs reduced the network complexity, while PICRUSt2 and FAPROTAX analyses suggested that 0.2% PP and 1% PS MPs had the most significant effects on the nitrogen and carbon cycles (p < 0.05). Overall, this study provides new insights into the effects of MPs on the structure and function of microbial communities in cold seep sediments.
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Affiliation(s)
- Chunlei Chen
- Institute of Marine Biology and pharmacology, Ocean College, Zhejiang University, Zhoushan, 316021, Zhejiang, China
| | - Yinan Deng
- Guangzhou Marine Geological Survey, Guangzhou, 510075, Guangdong, China
| | - Qing Liu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541000, Guangxi, China
| | - Hongfei Lai
- Guangzhou Marine Geological Survey, Guangzhou, 510075, Guangdong, China
| | - Chunfang Zhang
- Institute of Marine Biology and pharmacology, Ocean College, Zhejiang University, Zhoushan, 316021, Zhejiang, China.
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94
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Talukdar A, Kundu P, Bhattacharjee S, Dey S, Dey A, Biswas JK, Chaudhuri P, Bhattacharya S. Microplastics in mangroves with special reference to Asia: Occurrence, distribution, bioaccumulation and remediation options. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166165. [PMID: 37574065 DOI: 10.1016/j.scitotenv.2023.166165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 07/15/2023] [Accepted: 08/07/2023] [Indexed: 08/15/2023]
Abstract
Microplastics (MPs) are a new and lesser-known pollutant that has intrigued the interest of scientists all over the world in recent decades. MP (<5mm in size) can enter marine environments such as mangrove forests in a variety of ways, interfering with the health of the environment and organisms. Mangroves are now getting increasingly exposed to microplastic contamination due to their proximity to human activities and their position as critical transitional zones between land and sea. The present study reviews the status of MPs contamination specifically in mangrove ecosystems situated in Asia. Different sources and characteristics of MPs, subsequent deposition of MPs in mangrove water and sediments, bioaccumulation in different organisms are discussed in this context. MP concentrations in sediments and organisms were higher in mangrove forests exposed to fishing, coastal tourism, urban, and industrial wastewater than in pristine areas. The distribution of MPs varies from organism to organism in mangrove ecosystems, and is significantly influenced by their morphometric characteristics, feeding habits, dwelling environment etc. Mangrove plants can accumulate microplastics in their roots, stem and leaves through absorption, adsorption and entrapment helping in reducing abundance of microplastic in the surrounding environment. Several bacterial and fungal species are reported from these mangrove ecosystems, which are capable of degrading MPs. The bioremediation potential of mangrove plants offers an innovative and sustainable approach to mitigate microplastic pollution. Diverse mechanisms of MP biodegradation by mangrove dwelling organisms are discussed in this context. Biotechnological applications can be utilized to explore the genetic potential of the floral and faunal species found in the Asian mangroves. Detailed studies are required to monitor, control, and evaluate MP pollution in sediments and various organisms in mangrove ecosystems in Asia as well as in other parts of the world.
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Affiliation(s)
| | - Pritha Kundu
- School of Ecology and Environment Studies, Nalanda University, Rajgir, Nalanda, Bihar 803116, India
| | - Shrayan Bhattacharjee
- Ecosystem and Ecology Laboratory, Post-graduate Department of Zoology, Ramakrishna Mission Vivekananda Centenary College, Rahara, Kolkata 700118, India
| | - Satarupa Dey
- Department of Botany, Shyampur Siddheswari Mahavidyalaya, Howrah 711301, West Bengal, India
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata 700073, West Bengal, India
| | - Jayanta Kumar Biswas
- Enviromicrobiology, Ecotoxicology & Ecotechnology Research Laboratory (3E-MicroToxTech Lab), Department of Ecological Studies, and International Centre for Ecological Engineering, University of Kalyani, Nadia, West Bengal 741235, India
| | - Punarbasu Chaudhuri
- Department of Environmental Science, University of Calcutta, Kolkata 700019, West Bengal, India
| | - Sayan Bhattacharya
- School of Ecology and Environment Studies, Nalanda University, Rajgir, Nalanda, Bihar 803116, India.
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95
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Oluwoye I, Machuca LL, Higgins S, Suh S, Galloway TS, Halley P, Tanaka S, Iannuzzi M. Degradation and lifetime prediction of plastics in subsea and offshore infrastructures. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166719. [PMID: 37673242 DOI: 10.1016/j.scitotenv.2023.166719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 08/25/2023] [Accepted: 08/29/2023] [Indexed: 09/08/2023]
Abstract
Engineering and civil developments have relied on synthetic polymers and plastics (including polyethylene, polypropylene, polyamide, etc.) for decades, especially where their durability protects engineering structures against corrosion and other environmental stimuli. Offshore oil and gas infrastructure and renewable energy platforms are typical examples, where these plastics (100,000 s of metric tonnes worldwide) are used primarily as functional material to protect metallic flowlines and subsea equipment against seawater corrosion. Despite this, the current literature on polymers is limited to sea-surface environments, and a model for subsea degradation of plastics is needed. In this review, we collate relevant studies on the degradation of plastics and synthetic polymers in marine environments to gain insight into the fate of these materials when left in subsea conditions. We present a new mathematical model that accounts for various physicochemical changes in the oceanic environment as a function of depth to predict the lifespan of synthetic plastics and the possible formation of plastic debris, e.g., microplastics. We found that the degradation rate of the plastics decreases significantly as a function of water depth and can be estimated quantitatively by the mathematical model that accounts for the effect (and sensitivity) of geographical location, temperature, light intensity, hydrostatic pressure, and marine sediments. For instance, it takes a subsea polyethylene coating about 800 years to degrade on ocean floor (as opposed to <400 years in shallow coastal waters), generating 1000s of particles per g of degradation under certain conditions. Our results demonstrate how suspended sediments in the water column are likely to compensate for the decreasing depth-corrected degradation rates, resulting in surface abrasion and the formation of plastic debris such as microplastics. This review, and the complementing data, will be significant for the environmental impact assessment of plastics in subsea infrastructures. Moreover, as these infrastructures reach the end of their service life, the management of the plastic components becomes of great interest to environmental regulators, industry, and the community, considering the known sizeable impacts of plastics on global biogeochemical cycles.
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Affiliation(s)
- Ibukun Oluwoye
- Curtin Corrosion Centre, Western Australian School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, Australia; Graduate School of Global Environmental Studies, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto, Japan.
| | - Laura L Machuca
- Curtin Corrosion Centre, Western Australian School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, Australia
| | - Stuart Higgins
- Curtin University, GPO Box U1987, Perth, WA 6824, Australia
| | - Sangwon Suh
- Bren School of Environmental Science and Management, University of California, Santa Barbara, CA 93106, USA
| | - Tamara S Galloway
- College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, UK
| | - Peter Halley
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Shuhei Tanaka
- Graduate School of Global Environmental Studies, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto, Japan
| | - Mariano Iannuzzi
- Curtin Corrosion Centre, Western Australian School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, Australia
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96
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Cofano V, Mele D, Lacalamita M, Di Leo P, Scardino G, Bravo B, Cammarota F, Capolongo D. Microplastics in inland and offshore sediments in the Apulo-Lucanian region (Southern Italy). MARINE POLLUTION BULLETIN 2023; 197:115775. [PMID: 37979531 DOI: 10.1016/j.marpolbul.2023.115775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 10/09/2023] [Accepted: 11/09/2023] [Indexed: 11/20/2023]
Abstract
Inland and offshore sediments from Southern Italy were studied in order to evaluate the occurrence and nature of microplastics (MPs). Inland sediments were collected in the Bradano and Basento rivers (Apulo-Lucanian region, Southern Italy), while offshore sediments were collected on the continental shelf near Bari (Adriatic Sea) and Metaponto (Ionian Sea). MPs were detected and characterized using optical microscopy, micro-Fourier-Transform Infrared spectroscopy (μ-FTIR) and micro-Raman analyses. The number of MPs present varied between 144 and 1246 kg-1 of dry sediment (468.8 ± 410,7 MPs kg-1) with a predominance of black fibers; no correlation emerged between MPs and sediment grain size. In river sediments, the occurrence of MPs is associated with local pollution, whereas the offshore occurrence of MPs depends on seasonal river flow and submarine canyons. Compositional analyses suggest that the main source of MPs in the studied sediments is sewage discharge from residential areas.
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Affiliation(s)
- Vito Cofano
- Department of Earth and Geoenvironmental Sciences, Campus Universitario, University of Bari Aldo Moro, Via Edoardo Orabona 4, 70125 Bari, Italy.
| | - Daniela Mele
- Department of Earth and Geoenvironmental Sciences, Campus Universitario, University of Bari Aldo Moro, Via Edoardo Orabona 4, 70125 Bari, Italy
| | - Maria Lacalamita
- Department of Earth and Geoenvironmental Sciences, Campus Universitario, University of Bari Aldo Moro, Via Edoardo Orabona 4, 70125 Bari, Italy
| | - Paola Di Leo
- CNR-IMAA, Tito Scalo, Potenza I-85050, Italy; School of Specialization in Archaeological Heritage, SSBA DiCEM - Department of European and Mediterranean Cultures, University of Basilicata, Matera, Italy
| | - Giovanni Scardino
- Department of Earth and Geoenvironmental Sciences, Campus Universitario, University of Bari Aldo Moro, Via Edoardo Orabona 4, 70125 Bari, Italy
| | - Barbara Bravo
- Thermo Fisher Scientific, Str. Rivoltana, Km 4, 20090 Rodano, MI, Italy
| | - Francesca Cammarota
- ARPAB, Regional Agency for Environmental Protection of Basilicata, Matera, Italy
| | - Domenico Capolongo
- Department of Earth and Geoenvironmental Sciences, Campus Universitario, University of Bari Aldo Moro, Via Edoardo Orabona 4, 70125 Bari, Italy
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97
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Lin J, Zhan G, Liu J, Maimaitiyiming Y, Deng Z, Li B, Su K, Chen J, Sun S, Zheng W, Yu X, He F, Cheng X, Wang L, Shen B, Yao Z, Yang X, Zhang J, He W, Wu H, Naranmandura H, Chang KJ, Min J, Ma J, Björklund M, Xu PF, Wang F, Hsu CH. YTHDF2-mediated regulations bifurcate BHPF-induced programmed cell deaths. Natl Sci Rev 2023; 10:nwad227. [PMID: 38152479 PMCID: PMC10751878 DOI: 10.1093/nsr/nwad227] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 12/29/2023] Open
Abstract
N6-methyladenosine (m6A) is a critical regulator in the fate of RNA, but whether and how m6A executes its functions in different tissues remains largely obscure. Here we report downregulation of a crucial m6A reader, YTHDF2, leading to tissue-specific programmed cell deaths (PCDs) upon fluorene-9-bisphenol (BHPF) exposure. Currently, Bisphenol A (BPA) substitutes are widely used in plastic manufacturing. Interrogating eight common BPA substitutes, we detected BHPF in 14% serum samples of pregnant participants. In a zebrafish model, BHPF caused tissue-specific PCDs triggering cardiac and vascular defects. Mechanistically, BHPF-mediated downregulation of YTHDF2 reduced YTHDF2-facilitated translation of m6A-gch1 for cardiomyocyte ferroptosis, and decreased YTHDF2-mediated m6A-sting1 decay for caudal vein plexus (CVP) apoptosis. The two distinct YTHDF2-mediated m6A regulations and context-dependent co-expression patterns of gch1/ythdf2 and tnfrsf1a/ythdf2 contributed to YTHDF2-mediated tissue-specific PCDs, uncovering a new layer of PCD regulation. Since BHPF/YTHDF2-medaited PCD defects were also observed in mammals, BHPF exposure represents a potential health threat.
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Affiliation(s)
- Jiebo Lin
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
| | - Guankai Zhan
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
| | - Jinfeng Liu
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
- The Second Affiliated Hospital, School of Public Health, State Key Laboratory of Experimental Hematology, Zhejiang University School of Medicine, Hangzhou 310058
| | - Yasen Maimaitiyiming
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
- Department of Hematology of First Affiliated Hospital, and Department of Public Health, Zhejiang University School of Medicine, Hangzhou 310000
| | - Zhiping Deng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310000
| | - Baohua Li
- Department of Obstetrics, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310000
| | - Kunhui Su
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
| | - Jiafeng Chen
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
| | - Siqi Sun
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
| | - Wanlin Zheng
- Women's Hospital, and Institute of Genetics, Zhejiang University School of Medicine, Hangzhou 310000
- Zhejiang Provincial Key Lab of Genetic and Developmental Disorders, Hangzhou 310058
| | - Xianghui Yu
- Women's Hospital, and Institute of Genetics, Zhejiang University School of Medicine, Hangzhou 310000
- Zhejiang Provincial Key Lab of Genetic and Developmental Disorders, Hangzhou 310058
| | - Feng He
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
- Women's Hospital, and Institute of Genetics, Zhejiang University School of Medicine, Hangzhou 310000
- Zhejiang Provincial Key Lab of Genetic and Developmental Disorders, Hangzhou 310058
| | - Xiaodong Cheng
- Zhejiang Provincial Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310000
| | - Lingfang Wang
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
- Zhejiang Provincial Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310000
| | - Bin Shen
- State Key Laboratory of Reproductive Medicine, Center for Global Health, Gusu School, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing Medical University, Nanjing 211166
| | - Ziqin Yao
- The Second Affiliated Hospital, School of Public Health, State Key Laboratory of Experimental Hematology, Zhejiang University School of Medicine, Hangzhou 310058
- The First Affiliated Hospital, Basic Medical Sciences, School of Public Health, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001
| | - Xinquan Yang
- The Second Affiliated Hospital, School of Public Health, State Key Laboratory of Experimental Hematology, Zhejiang University School of Medicine, Hangzhou 310058
- The First Affiliated Hospital, Basic Medical Sciences, School of Public Health, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001
| | - Jian Zhang
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
| | - Wentao He
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
| | - Hengyu Wu
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
| | - Hua Naranmandura
- Department of Hematology of First Affiliated Hospital, and Department of Public Health, Zhejiang University School of Medicine, Hangzhou 310000
| | - Kao-Jung Chang
- Department of Medical Research, Taipei Veterans General Hospital, Taipei 11217
| | - Junxia Min
- The First Affiliated Hospital, Institute of Translational Medicine, Cancer Center, Zhejiang University School of Medicine, Hangzhou 310058
| | - Jun Ma
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
- Women's Hospital, and Institute of Genetics, Zhejiang University School of Medicine, Hangzhou 310000
- Zhejiang Provincial Key Lab of Genetic and Developmental Disorders, Hangzhou 310058
| | - Mikael Björklund
- Zhejiang University-University of Edinburgh (ZJU-UoE) Institute, Haining 314400
- University of Edinburgh Medical School, Biomedical Sciences, College of Medicine & Veterinary Medicine, University of Edinburgh, Edinburgh, EH8 9JZ
| | - Peng-Fei Xu
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
- Women's Hospital, and Institute of Genetics, Zhejiang University School of Medicine, Hangzhou 310000
| | - Fudi Wang
- The Second Affiliated Hospital, School of Public Health, State Key Laboratory of Experimental Hematology, Zhejiang University School of Medicine, Hangzhou 310058
- The First Affiliated Hospital, Basic Medical Sciences, School of Public Health, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001
| | - Chih-Hung Hsu
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
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98
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Fang C, Gopalan S, Zhang X, Xu L, Niu J, Naidu R. Raman imaging to identify microplastics released from toothbrushes: algorithms and particle analysis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 337:122510. [PMID: 37689132 DOI: 10.1016/j.envpol.2023.122510] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/14/2023] [Accepted: 09/03/2023] [Indexed: 09/11/2023]
Abstract
Microplastics are small plastic fragments that are of increasing concern due to their potential impacts on the environment and human health. The source of microplastics is not completely clear and might originate in daily lives such as from toothbrushes. When toothbrushes are used to clean teeth, small plastic debris and fragments can be potentially released into mouths directly or environment indirectly. This study aims to examine the release of microplastics from toothbrushes, using Raman imaging to identify and visualise the plastic debris with an increased signal-noise ratio via hyper-spectrum analysis. Using algorithms to convert the hyper-spectrum to an image, the plastic can be distinguished from the co-formulated titanium oxide particles that are not uniformly distributed along the plastics. The non-uniform distribution can lead to the bias results if a single spectrum analysis is conducted at one position rather than imaging analysis to scan an area. The potential false image originating from the off-focal position for the confocal Raman is overcome using the terrain map to guide the Raman imaging. The imaging analysis balancing between the low magnification to capture the overview and the high magnification to test the details is also discussed. While the release amount of microplastics from the toothbrush is estimated at thousands daily with the expected variation, the results of this study have confirmed the release of microplastics in daily lives. The imaging analysis approach along with algorithm can help to identify the chemical elements of microplastics from the complex background, which can benefit the further research on microplastics towards risk assessment and remediation.
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Affiliation(s)
- Cheng Fang
- Global Centre for Environmental Remediation (GCER), University of Newcastle, Callaghan, NSW, 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), University of Newcastle, Callaghan, NSW, 2308, Australia.
| | - Saianand Gopalan
- Global Centre for Environmental Remediation (GCER), University of Newcastle, Callaghan, NSW, 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Xian Zhang
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, PR China
| | - Lei Xu
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Junfeng Niu
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Ravi Naidu
- Global Centre for Environmental Remediation (GCER), University of Newcastle, Callaghan, NSW, 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), University of Newcastle, Callaghan, NSW, 2308, Australia
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99
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Bue GL, Marchini A, Musa M, Croce A, Gatti G, Riccardi MP, Lisco S, Mancin N. First attempt to quantify microplastics in Mediterranean Sabellaria spinulosa (Annelida, Polychaeta) bioconstructions. MARINE POLLUTION BULLETIN 2023; 196:115659. [PMID: 37866055 DOI: 10.1016/j.marpolbul.2023.115659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/26/2023] [Accepted: 10/10/2023] [Indexed: 10/24/2023]
Abstract
This work focuses on the arenaceous reefs by the polychaete Sabellaria spinulosa and addresses microplastics pollution. The main aim is to assess microplastics amount in a bioconstruction located in the Adriatic coast of Italy (Mediterranean Sea) through a comparative approach: sea-floor sediment and bioconstruction samples were analysed to quantify microplastics absolute abundance in both substrates. A total of 431 MPs were found in the investigated substrates: respectively 85 % fibers and 15 % fragments. Multivariate analysis indicates that MPs within bioconstruction occur in higher abundances and with different morphologies than in sediment samples. The analysis of bioconstruction polished sections allowed for observation of MPs agglutinated in their original position: higher concentration is reported in inter-tube areas. Results suggest that physical characteristics of MPs could play a key-role in bioconstruction inclusion processes and raise questions on effective role of sabellariid bioconstructions as a trap for this pollutant in the littoral environment.
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Affiliation(s)
- Giusto Lo Bue
- Department of Earth and Environmental Sciences, University of Pavia, via Ferrata 1, 27100 Pavia, Italy.
| | - Agnese Marchini
- Department of Earth and Environmental Sciences, University of Pavia, via Ferrata 1, 27100 Pavia, Italy
| | - Maya Musa
- Department of Earth and Environmental Sciences, University of Pavia, via Ferrata 1, 27100 Pavia, Italy
| | - Alessandro Croce
- Department of Sustainable Development and Ecological Transition, University of Eastern Piedmont, Piazza S. Eusebio 5, 13100 Vercelli, Italy; SSD Research Laboratories, Research and Innovation Department (DAIRI), Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo, Via Venezia 16, 15121 Alessandria, Italy
| | - Giorgio Gatti
- Department of Sustainable Development and Ecological Transition, University of Eastern Piedmont, Piazza S. Eusebio 5, 13100 Vercelli, Italy
| | - Maria Pia Riccardi
- Department of Earth and Environmental Sciences, University of Pavia, via Ferrata 1, 27100 Pavia, Italy
| | - Stefania Lisco
- Department of Earth and Geoenvironmental Sciences, Campus Universitario, University of Bari Aldo Moro, 70125 Bari, Italy
| | - Nicoletta Mancin
- Department of Earth and Environmental Sciences, University of Pavia, via Ferrata 1, 27100 Pavia, Italy
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100
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Lloyd-Jones T, Dick JJ, Lane TP, Cunningham EM, Kiriakoulakis K. Occurrence and sources of microplastics on Arctic beaches: Svalbard. MARINE POLLUTION BULLETIN 2023; 196:115586. [PMID: 37832496 DOI: 10.1016/j.marpolbul.2023.115586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 09/21/2023] [Accepted: 09/23/2023] [Indexed: 10/15/2023]
Abstract
Plastic pollution is recognised as a major global environmental concern, especially within marine environments. The small size of microplastics (< 5 mm) make them readily available for ingestion by organisms in all trophic levels. Here, four beach sites in Adventfjorden on the west coast of Svalbard, were sampled with the aim of investigating the occurrence and abundance of microplastics on beaches to assess potential sources of microplastic pollution. High variability in microplastic amount, type and polymers were found at all sites ranging from means of 0.7 n/g (number) at the remotest site and 2.2 n/g (number) at the site closest to Longyearbyen. Statistical analyses suggested that patterns observed were linked to direct proximity to human activities through land uses and effluent discharge. These findings point to an increased importance of localised factors on driving elevated microplastic pollution in beach sediments over oceanic controls in remote but inhabited Arctic locations and have important implications for our understanding and future assessments of microplastic pollution in such settings.
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Affiliation(s)
- Tesni Lloyd-Jones
- School of Biological and Environmental Sciences, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
| | - Jonathan J Dick
- School of Biological and Environmental Sciences, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK.
| | - Timothy P Lane
- School of Biological and Environmental Sciences, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
| | - Eoghan M Cunningham
- Queen's University Marine Laboratory, Queen's University Belfast, 12-13 The Strand, Portaferry BT22 1PF, Northern Ireland, UK
| | - Konstadinos Kiriakoulakis
- School of Biological and Environmental Sciences, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
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