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Pérez-Flores J, Borges-Ramírez MM, Vargas-Contreras JA, Osten JRV. Inter-annual variation in the microplastics abundance in feces of the Baird's tapir (Tapirus bairdii) from the Selva Maya, México. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 941:173659. [PMID: 38839015 DOI: 10.1016/j.scitotenv.2024.173659] [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: 02/17/2024] [Revised: 05/10/2024] [Accepted: 05/29/2024] [Indexed: 06/07/2024]
Abstract
Microplastics (MPs) are found in a wide range of ecosystems, from the Arctic to the deep ocean. However, there is no data on their presence in terrestrial mammals that inhabit the Selva Maya. The aim of this study is to detect the presence of MPs in the feces of the Baird's tapir (Tapirus bairdii) from the region of Calakmul, located in the Yucatan Peninsula, Mexico. We analyzed 129 fecal samples collected during 2017 and 2018, obtaining 57 and 72 samples during the rainy and dry seasons respectively. Sixty-eight percent of the samples contained 743 MPs with a mean of 19.3 ± 28.1 MPs/kg of dry weight (DW) feces in both years. An inter-annual variation in the average abundance of microplastic was observed during the two-year period (2017-2018), with a 72 % increase in these plastic particles in feces. Fourteen polymers were identified, with ethylene vinyl acetate (EVA), polypropylene (PP) and polyester (PES) being the most abundant during both years. Although the effects of MPs on the health of tapirs are not known, their presence is cause for concern. There is an urgent need for the implementation of appropriate plastic waste management programs in communities of the Selva Maya to diminish the consumption of MPs in species including humans where they pose a significant risk to health. ENVIRONMENTAL IMPLICATIONS: The use of plastics worldwide is increasing every day, so the presence of microplastics is and will continue to be a major environmental problem. It is known that contaminants can adhere to plastics, making them hazardous materials. Microplastics can contaminate remote areas such as Biosphere Reserves. Terrestrial species such as the tapir can ingest microplastics, putting their health at risk. Knowing the dispersion of microplastics is very important in order to manage them properly, taking into account their emission sources and type of polymer.
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Affiliation(s)
- Jonathan Pérez-Flores
- Consejo Nacional de Humanidades, Ciencia y Tecnología (CONAHCYT), Av. Insurgentes Sur 1582, CP 03940 Ciudad de México, Ciudad de México, Mexico; El Colegio de La Frontera Sur (ECOSUR), Unidad de Chetumal, Avenida Centenario Km 5.5, CP 77014 Chetumal, Quintana Roo, Mexico
| | - Merle M Borges-Ramírez
- Instituto de Ecología, Pesquería y Oceanografía del Golfo de México (EPOMEX), Universidad Autónoma de Campeche, Campus VI, Av. Héroe de Nacozari 480, CP 24070, Campeche, Campeche, Mexico
| | - Jorge A Vargas-Contreras
- Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Campeche, Campus V, Av. Ex Hacienda Kalá S/N, CP 24085 Campeche, Campeche, Mexico
| | - Jaime Rendón-von Osten
- Instituto de Ecología, Pesquería y Oceanografía del Golfo de México (EPOMEX), Universidad Autónoma de Campeche, Campus VI, Av. Héroe de Nacozari 480, CP 24070, Campeche, Campeche, Mexico.
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2
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Ali SS, Elsamahy T, Al-Tohamy R, Sun J. A critical review of microplastics in aquatic ecosystems: Degradation mechanisms and removing strategies. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2024; 21:100427. [PMID: 38765892 PMCID: PMC11099331 DOI: 10.1016/j.ese.2024.100427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 04/21/2024] [Accepted: 04/21/2024] [Indexed: 05/22/2024]
Abstract
Plastic waste discarded into aquatic environments gradually degrades into smaller fragments, known as microplastics (MPs), which range in size from 0.05 to 5 mm. The ubiquity of MPs poses a significant threat to aquatic ecosystems and, by extension, human health, as these particles are ingested by various marine organisms including zooplankton, crustaceans, and fish, eventually entering the human food chain. This contamination threatens the entire ecological balance, encompassing food safety and the health of aquatic systems. Consequently, developing effective MP removal technologies has emerged as a critical area of research. Here, we summarize the mechanisms and recently reported strategies for removing MPs from aquatic ecosystems. Strategies combining physical and chemical pretreatments with microbial degradation have shown promise in decomposing MPs. Microorganisms such as bacteria, fungi, algae, and specific enzymes are being leveraged in MP remediation efforts. Recent advancements have focused on innovative methods such as membrane bioreactors, synthetic biology, organosilane-based techniques, biofilm-mediated remediation, and nanomaterial-enabled strategies, with nano-enabled technologies demonstrating substantial potential to enhance MP removal efficiency. This review aims to stimulate further innovation in effective MP removal methods, promoting environmental and social well-being.
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Affiliation(s)
- Sameh S. Ali
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Tamer Elsamahy
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Rania Al-Tohamy
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Jianzhong Sun
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
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Sambandam M, Mishra P, Dhineka K, Kaviarasan T, Murthy MVR, Ravichandran M. Tide of change: Urgency of a national marine litter policy in India. MARINE POLLUTION BULLETIN 2024; 204:116562. [PMID: 38850757 DOI: 10.1016/j.marpolbul.2024.116562] [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: 05/06/2024] [Revised: 06/01/2024] [Accepted: 06/02/2024] [Indexed: 06/10/2024]
Abstract
The rise of plastics in the 20th century revolutionized modern life but inadvertently exacerbated the marine litter crisis. The proliferation of wastes such as single-use plastics has escalated pollution along the coastline, demanding coordinated, decisive, and unified action. While the absence of specific national marine litter policies is concerning, there is growing recognition of urgency to address this issue. A group of experts and stakeholders was involved through a multi-staged workshop to assess the generated information based on scientific evidence and formulate a framework for the National Marine Litter Policy (NMLP). This paper proposes policy options (4 targets & 20 strategies) to address marine litter pollution, especially plastics, and aims to elucidate the urgency and significance of implementing an NMLP as a comprehensive strategy to combat plastics pollution. Implementing dedicated policies and action plans tailored to the unique challenges faced by each country is a vital step towards sustainable oceans.
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Affiliation(s)
- Murugan Sambandam
- National Centre for Coastal Research (NCCR), Ministry of Earth Sciences, Govt. of India, NIOT Campus, Pallikaranai, Chennai 600 100, India
| | - Pravakar Mishra
- National Centre for Coastal Research (NCCR), Ministry of Earth Sciences, Govt. of India, NIOT Campus, Pallikaranai, Chennai 600 100, India.
| | - Kuppuswamy Dhineka
- National Centre for Coastal Research (NCCR), Ministry of Earth Sciences, Govt. of India, NIOT Campus, Pallikaranai, Chennai 600 100, India
| | - Thanamegam Kaviarasan
- National Centre for Coastal Research (NCCR), Ministry of Earth Sciences, Govt. of India, NIOT Campus, Pallikaranai, Chennai 600 100, India
| | - M V Ramana Murthy
- National Centre for Coastal Research (NCCR), Ministry of Earth Sciences, Govt. of India, NIOT Campus, Pallikaranai, Chennai 600 100, India
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Alves DI, Carvalho Ó, Fernandes NA, Cosentino LT, Paula Junior AC, Fangueiro R, Ferreira DP. Upcycling of industrial footwear waste into nonwoven fibrous structures with thermal and acoustic insulation properties. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 363:121363. [PMID: 38850911 DOI: 10.1016/j.jenvman.2024.121363] [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: 02/06/2024] [Revised: 05/14/2024] [Accepted: 05/31/2024] [Indexed: 06/10/2024]
Abstract
The footwear industry significantly impacts the environment, from raw material extraction to waste disposal. Transforming waste into new products is a viable option to mitigate the environmental consequences, reducing the reliance on virgin raw materials. This work aims to develop thermal and acoustic insulation materials using polyester waste from footwear industry. Two nonwoven and two compressed nonwoven structures, comprising 80% polyester waste and 20% commercial recycled polyester (matrix), were produced. The materials were created through needle-punching and compression molding techniques. The study included the production of sandwich and monolayer nonwoven structures, which were evaluated considering area weight, thickness, air permeability, mechanical properties, morphology using field emission scanning electron microscopy, and thermal and acoustic properties. The nonwoven samples presented high tensile strength (893 kPa and 629 kPa) and the highest strain (79.7% and 73.3%) and compressed nonwoven structures showed higher tensile strength (2700 kPa and 1291 kPa) but reduced strain (25.8% and 40.8%). Nonwoven samples showed thermal conductivity of 0.041 W/K.m and 0.037 W/K.m. Compressed nonwoven samples had higher values at 0.060 W/K.m and 0.070 W/K.m. While the sample with the highest conductivity exceeds typical insulation levels, other samples are suitable for thermal insulation. Nonwoven structures exhibited good absorption coefficients (0.640-0.644), suitable for acoustic insulation. Compressed nonwoven structures had lower values (0.291-0.536), unsuitable for this purpose. In summary, this study underscores the potential of 100% recycled polyester structures derived from footwear and textile industry waste, showcasing remarkable acoustic and thermal insulation properties ideal for the construction sector.
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Affiliation(s)
- Diana I Alves
- Textile Science and Technology Centre (2C2T), Department of Textile Engineering, University of Minho, Campus de Azurém, 4800-058, Guimarães, Portugal
| | - Óscar Carvalho
- Department of Mechanical Engineering, Center for Microelectromechanical Systems (CMEMS), University of Minho, Campus de Azurém, 4800-058, Guimarães, Portugal
| | - Nuno Atc Fernandes
- Department of Mechanical Engineering, Center for Microelectromechanical Systems (CMEMS), University of Minho, Campus de Azurém, 4800-058, Guimarães, Portugal
| | - Livia Tavares Cosentino
- ISISE, ARISE, Department of Civil Engineering, University of Minho, Campus de Azurém, 4800-058, Guimarães, Portugal
| | - Adilson C Paula Junior
- ISISE, ARISE, Department of Civil Engineering, University of Minho, Campus de Azurém, 4800-058, Guimarães, Portugal
| | - Raul Fangueiro
- Textile Science and Technology Centre (2C2T), Department of Textile Engineering, University of Minho, Campus de Azurém, 4800-058, Guimarães, Portugal
| | - Diana P Ferreira
- Textile Science and Technology Centre (2C2T), Department of Textile Engineering, University of Minho, Campus de Azurém, 4800-058, Guimarães, Portugal.
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Das N, Chowdhury GW, Siddique AB, Riya SC, Fazal MA, Sobhan F, Sarker S. The silent threat of plastics along the coastal frontiers of Bangladesh: Are we concerned enough? MARINE POLLUTION BULLETIN 2024; 205:116567. [PMID: 38875968 DOI: 10.1016/j.marpolbul.2024.116567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 06/01/2024] [Accepted: 06/03/2024] [Indexed: 06/16/2024]
Abstract
Globally plastic pollution is posing a significant threat to the health and integrity of coastal ecosystems. This study aimed to provide a comprehensive overview of plastic pollution in the coastal areas of Bangladesh by examining land-based macroplastic distribution, exploring microplastic (MP) contamination in the coastal aquatic ecosystem and enhancing our understanding of the potential risks associated with MP contamination. Citizen science based monitoring approach using the android application was applied to understand the land-based plastic pollution in the coastal area of Bangladesh. From December 2022 to December 2023, a total of about 3600 photographs of plastic items from 215 citizen scientists were received from the coastal area of Bangladesh covering 580 km long coast line. Polymer Hazard Index (PHI) and Pollution Load Index (PLI) were also calculated to understand the risk of plastic pollution in sediment, water, aquatic organism, dried fish and sea salt. A total of 43 land-based plastic items reported from the coastal area of Bangladesh. Among these plastic items single use items contributed 58.2 % while disposable plastic items contributed 41.8 %. A strong spatial variability in the distribution of these plastic items was observed. PHI and PLI values suggested hazard category-I for MP contamination in sediment, sea salt, water, commercial fishery resources and dry fish. This study highlighted that coastal land area, sea salt, dried fish, water, sediment and organisms are contaminated with plastics which might have the potential threats to human health. Findings from this study will serve as reference data and also baseline for future research to combat the plastic pollution.
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Affiliation(s)
- Nabanita Das
- Department of Oceanography, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh
| | | | - Abu Bokkar Siddique
- Department of Oceanography, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh
| | - Shashowti Chowdhury Riya
- Department of Oceanography, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh
| | - Md Azizul Fazal
- Department of Oceanography, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh
| | - Faisal Sobhan
- Department of Oceanography, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh
| | - Subrata Sarker
- Department of Oceanography, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh.
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Bergeson AR, Silvera AJ, Alper HS. Bottlenecks in biobased approaches to plastic degradation. Nat Commun 2024; 15:4715. [PMID: 38830860 PMCID: PMC11148140 DOI: 10.1038/s41467-024-49146-8] [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: 07/29/2023] [Accepted: 05/23/2024] [Indexed: 06/05/2024] Open
Abstract
Plastic waste is an environmental challenge, but also presents a biotechnological opportunity as a unique carbon substrate. With modern biotechnological tools, it is possible to enable both recycling and upcycling. To realize a plastics bioeconomy, significant intrinsic barriers must be overcome using a combination of enzyme, strain, and process engineering. This article highlights advances, challenges, and opportunities for a variety of common plastics.
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Affiliation(s)
- Amelia R Bergeson
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Ashli J Silvera
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Hal S Alper
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, USA.
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX, USA.
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7
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Chen W, Yin H, Cole I, Houshyar S, Wang L. Carbon Dots Derived from Non-Biomass Waste: Methods, Applications, and Future Perspectives. Molecules 2024; 29:2441. [PMID: 38893317 PMCID: PMC11174087 DOI: 10.3390/molecules29112441] [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: 04/11/2024] [Revised: 05/17/2024] [Accepted: 05/20/2024] [Indexed: 06/21/2024] Open
Abstract
Carbon dots (CDs) are luminescent carbon nanoparticles with significant potential in analytical sensing, biomedicine, and energy regeneration due to their remarkable optical, physical, biological, and catalytic properties. In light of the enduring ecological impact of non-biomass waste that persists in the environment, efforts have been made toward converting non-biomass waste, such as ash, waste plastics, textiles, and papers into CDs. This review introduces non-biomass waste carbon sources and classifies them in accordance with the 2022 Australian National Waste Report. The synthesis approaches, including pre-treatment methods, and the properties of the CDs derived from non-biomass waste are comprehensively discussed. Subsequently, we summarize the diverse applications of CDs from non-biomass waste in sensing, information encryption, LEDs, solar cells, and plant growth promotion. In the final section, we delve into the future challenges and perspectives of CDs derived from non-biomass waste, shedding light on the exciting possibilities in this emerging area of research.
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Affiliation(s)
- Wenjing Chen
- School of Fashion and Textiles, RMIT University, Brunswick, VIC 3056, Australia; (W.C.); (L.W.)
| | - Hong Yin
- School of Engineering, STEM College, RMIT University, Melbourne, VIC 3000, Australia; (I.C.); (S.H.)
| | - Ivan Cole
- School of Engineering, STEM College, RMIT University, Melbourne, VIC 3000, Australia; (I.C.); (S.H.)
| | - Shadi Houshyar
- School of Engineering, STEM College, RMIT University, Melbourne, VIC 3000, Australia; (I.C.); (S.H.)
| | - Lijing Wang
- School of Fashion and Textiles, RMIT University, Brunswick, VIC 3056, Australia; (W.C.); (L.W.)
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Chang YC, Bi JN, Pan KY, Chiao YC. Microwave-Assisted Synthesis of SnO 2@ZnIn 2S 4 Composites for Highly Efficient Photocatalytic Hydrogen Evolution. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2367. [PMID: 38793432 PMCID: PMC11123309 DOI: 10.3390/ma17102367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 05/10/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024]
Abstract
This research successfully synthesized SnO2@ZnIn2S4 composites for photocatalytic tap water splitting using a rapid two-step microwave-assisted synthesis method. This study investigated the impact of incorporating a fixed quantity of SnO2 nanoparticles and combining them with various materials to form composites, aiming to enhance photocatalytic hydrogen production. Additionally, different weights of SnO2 nanoparticles were added to the ZnIn2S4 reaction precursor to prepare SnO2@ZnIn2S4 composites for photocatalytic hydrogen production. Notably, the photocatalytic efficiency of SnO2@ZnIn2S4 composites is substantially higher than that of pure SnO2 nanoparticles and ZnIn2S4 nanosheets: 17.9-fold and 6.3-fold, respectively. The enhancement is credited to the successful use of visible light and the facilitation of electron transfer across the heterojunction, leading to the efficient dissociation of electron-hole pairs. Additionally, evaluations of recyclability demonstrated the remarkable longevity of SnO2@ZnIn2S4 composites, maintaining high levels of photocatalytic hydrogen production over eight cycles without significant efficiency loss, indicating their impressive durability. This investigation presents a promising strategy for crafting and producing environmentally sustainable SnO2@ZnIn2S4 composites with prospective implementations in photocatalytic hydrogen generation.
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Affiliation(s)
- Yu-Cheng Chang
- Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan; (J.-N.B.); (K.-Y.P.); (Y.-C.C.)
| | - Jia-Ning Bi
- Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan; (J.-N.B.); (K.-Y.P.); (Y.-C.C.)
| | - Kuan-Yin Pan
- Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan; (J.-N.B.); (K.-Y.P.); (Y.-C.C.)
| | - Yung-Chang Chiao
- Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan; (J.-N.B.); (K.-Y.P.); (Y.-C.C.)
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
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Elgharbawy AS, El Demerdash AGM, Sadik WA, Kasaby MA, Lotfy AH, Osman AI. Synthetic Degradable Polyvinyl Alcohol Polymer and Its Blends with Starch and Cellulose-A Comprehensive Overview. Polymers (Basel) 2024; 16:1356. [PMID: 38794547 PMCID: PMC11124784 DOI: 10.3390/polym16101356] [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: 04/19/2024] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
Approximately 50% of global plastic wastes are produced from plastic packaging, a substantial amount of which is disposed of within a few minutes of its use. Although many plastic types are designed for single use, they are not always disposable. It is now widely acknowledged that the production and disposal of plastics have led to a plethora of negative consequences, including the contamination of both groundwater and soil resources and the deterioration of human health. The undeniable impact of excessive plastic manufacturing and waste generation on the global plastic pollution crisis has been well documented. Therefore, degradable polymers are a crucial solution to the problem of the non-degradation of plastic wastes. The disadvantage of degradable polymers is their high cost, so blending them with natural polymers will reduce the cost of final products and maximize their degradation rate, making degradable polymers competitive with industrial polymers that are currently in use daily. In this work, we will delineate various degradable polymers, including polycaprolactone, starch, and cellulose. Furthermore, we will elucidate several aspects of polyvinyl alcohol (PVA) and its blends with natural polymers to show the effects of adding natural polymers on PVA properties. This paper will study cost-effective and ecologically acceptable polymers by combining inexpensive natural polymers with readily accessible biodegradable polymers such as polyvinyl alcohol (PVA).
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Affiliation(s)
- Abdallah S. Elgharbawy
- Materials Science Department, Institute of Graduate Studies and Research (IGSR), Alexandria University, 163 Horrya Avenue, Shatby, P.O. Box 832, Alexandria 21526, Egypt; (A.S.E.)
- The Egyptian Ethylene and Derivatives Company (Ethydco), Alexandria 21544, Egypt
| | - Abdel-Ghaffar M. El Demerdash
- Materials Science Department, Institute of Graduate Studies and Research (IGSR), Alexandria University, 163 Horrya Avenue, Shatby, P.O. Box 832, Alexandria 21526, Egypt; (A.S.E.)
| | - Wagih A. Sadik
- Materials Science Department, Institute of Graduate Studies and Research (IGSR), Alexandria University, 163 Horrya Avenue, Shatby, P.O. Box 832, Alexandria 21526, Egypt; (A.S.E.)
| | - Mosaad A. Kasaby
- Materials Science Department, Institute of Graduate Studies and Research (IGSR), Alexandria University, 163 Horrya Avenue, Shatby, P.O. Box 832, Alexandria 21526, Egypt; (A.S.E.)
| | - Ahmed H. Lotfy
- Materials Science Department, Institute of Graduate Studies and Research (IGSR), Alexandria University, 163 Horrya Avenue, Shatby, P.O. Box 832, Alexandria 21526, Egypt; (A.S.E.)
| | - Ahmed I. Osman
- School of Chemistry and Chemical Engineering, Queen’s University Belfast, Belfast BT9 5AG, Northern Ireland, UK
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Sharma KK, Panwar H, Gupta KK. Isolation and characterization of bio-prospecting gut strains Bacillus safensis CGK192 and Bacillus australimaris CGK221 for plastic (HDPE) degradation. Biotechnol Lett 2024:10.1007/s10529-024-03486-z. [PMID: 38705964 DOI: 10.1007/s10529-024-03486-z] [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: 05/31/2023] [Revised: 12/20/2023] [Accepted: 03/10/2024] [Indexed: 05/07/2024]
Abstract
The present work reports the application of novel gut strains Bacillus safensis CGK192 (Accession No. OM658336) and Bacillus australimaris CGK221 (Accession No. OM658338) in the biological degradation of synthetic polymer i.e., high-density polyethylene (HDPE). The biodegradation assay based on polymer weight loss was conducted under laboratory conditions for a period of 90 days along with regular evaluation of bacterial biomass in terms of total protein content and viable cells (CFU/cm2). Notably, both strains achieved significant weight reduction for HDPE films without any physical or chemical pretreatment in comparison to control. Hydrophobicity and biosurfactant characterization were also done in order to assess strains ability to form bacterial biofilm over the polymer surface. The post-degradation characterization of HDPE was also performed to confirm degradation using analytical techniques such as Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Field emission scanning electronic microscopy (FE-SEM) coupled with energy dispersive X-ray (EDX), and Gas chromatography-mass spectrometry (GC-MS). Interestingly strain CGK221 was found to be more efficient in forming biofilm over polymer surface as indicated by lower half-life (i.e., 0.00032 day-1) and higher carbonyl index in comparison to strain CGK192. The findings reflect the ability of our strains to develop biofilm and introduce an oxygenic functional group into the polymer surface, thereby making it more susceptible to degradation.
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Affiliation(s)
- Kamal Kant Sharma
- Department of Botany and Microbiology, Gurukula Kangri (Deemed to be University), Haridwar, Uttarakhand, India
| | - Himalaya Panwar
- Department of Botany and Microbiology, Gurukula Kangri (Deemed to be University), Haridwar, Uttarakhand, India
| | - Kartikey Kumar Gupta
- Department of Botany and Microbiology, Gurukula Kangri (Deemed to be University), Haridwar, Uttarakhand, India.
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11
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Arijeniwa VF, Akinsemolu AA, Chukwugozie DC, Onawo UG, Ochulor CE, Nwauzoma UM, Kawino DA, Onyeaka H. Closing the loop: A framework for tackling single-use plastic waste in the food and beverage industry through circular economy- a review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 359:120816. [PMID: 38669876 DOI: 10.1016/j.jenvman.2024.120816] [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: 09/29/2023] [Revised: 02/10/2024] [Accepted: 04/01/2024] [Indexed: 04/28/2024]
Abstract
The escalating threat of plastic pollution necessitates urgent and immediate action, particularly within the food and beverage (F&B) industry, a significant contributor to single-use plastic waste (SUP). As the global population surges, so does the consumption of single-use plastics in the F&B sector, perpetuating a linear economy model characterized by a 'take, make, use, dispose' approach. This model significantly exacerbates plastic waste issues, with projections indicating an alarming increase in plastic outputs by 2050 if current practices continue. Against this backdrop, the circular economy presents a viable alternative, with its emphasis on resource retention, recovery, and the extension of product lifecycles. This study delves into the problems posed by single-use plastics, introduces the circular economy as a sustainable model, and explores effective strategies for the recycling and reuse of plastic waste within this framework. By examining the environmental impact of SUP in the F&B sector and advocating for the adoption of circular economy principles, this paper underscores a critical pathway towards sustainable solutions in the battle against plastic pollution. In conclusion, the transition to a circular economy, underpinned by global collaboration and the proactive implementation of supportive policies, is imperative for reducing the environmental footprint of single-use plastics and fostering a sustainable future.
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Affiliation(s)
| | - Adenike A Akinsemolu
- The Green Institute, Ondo, Akure Road Ondo Kingdom, OD, 351101. Nigeria; Institute of Advanced Studies, University of Birmingham, Birmingham, B15 2TT, UK
| | | | - Ulakom Genesis Onawo
- Department of Microbiology, Cross River University of Technology, P.M.B. 1123, Calabar, Cross River State, Nigeria
| | - Chidinma Ezinne Ochulor
- Faculty of Agriculture, Department of Food Science and Technology, University of Nigeria, Nsukka, Nigeria
| | - Uju M Nwauzoma
- Department of Urban and Regional Planning, University of Nigeria, Enugu Campus, Nigeria
| | | | - Helen Onyeaka
- School of Chemical Engineering, University of Birmingham, Birmingham, B152 TT, UK.
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12
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Sangwan S, Bhattacharyya R, Banerjee D. Plastic compounds and liver diseases: Whether bisphenol A is the only culprit. Liver Int 2024; 44:1093-1105. [PMID: 38407523 DOI: 10.1111/liv.15879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 02/08/2024] [Accepted: 02/12/2024] [Indexed: 02/27/2024]
Abstract
Plastics, while providing modern conveniences, have become an inescapable source of global concern due to their role in environmental pollution. Particularly, the focus on bisphenol A (BPA) reveals its biohazardous nature and association with liver issues, specifically steatosis. However, research indicates that BPA is just one facet of the problem, as other bisphenol analogues, microplastics, nanoplastics and additional plastic derivatives also pose potential risks. Notably, BPA is implicated in every stage of non-alcoholic fatty liver disease (NAFLD) onset and progression, surpassing hepatitis B virus as a primary cause of chronic liver disease worldwide. As plastic contamination tops the environmental contaminants list, urgent action is needed to assess causative factors and mitigate their impact. This review delves into the molecular disruptions linking plastic pollutant exposure to liver diseases, emphasizing the broader connection between plastics and the rising prevalence of NAFLD.
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Affiliation(s)
- Sonal Sangwan
- Department of Experimental Medicine and Biotechnology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Rajasri Bhattacharyya
- Department of Experimental Medicine and Biotechnology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Dibyajyoti Banerjee
- Department of Experimental Medicine and Biotechnology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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13
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Khalifa M, Fayed RH, Ahmed YH, Sedik AA, El-Dydamony NM, Khalil HMA. Mitigating effect of ferulic acid on di-(2-ethylhexyl) phthalate-induced neurocognitive dysfunction in male rats with a comprehensive in silico survey. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:3493-3512. [PMID: 37966574 PMCID: PMC11074231 DOI: 10.1007/s00210-023-02831-9] [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: 06/21/2023] [Accepted: 10/30/2023] [Indexed: 11/16/2023]
Abstract
Di-(2-ethylhexyl) phthalate (DEHP) is the most abundant phthalate threatening public health-induced neurotoxicity. This neurotoxicity is associated with behavioral and biochemical deficits in male rats. Our study investigated the neuroprotective effect of ferulic acid (FA) on male rats exposed to DEHP. Thirty-two male Wistar rats were assigned to four groups. Group I control rats received corn oil, group II intoxicated rats received 300 mg/kg of DEHP, group III received 300 mg/kg of DEHP + 50 mg/kg of FA, and group IV received 50 mg/kg of FA, all agents administrated daily per os for 30 days. Anxiety-like behavior, spatial working memory, and recognition memory were assessed. Also, brain oxidative stress biomarkers, including brain malondialdehyde (MDA), reduced glutathione (GSH), nitric oxide (NO), superoxide dismutase (SOD), brain-derived neurotrophic factor (BDNF) as well as heme oxygenase-1 (HO-1) were measured. Moreover, brain histopathology examinations associated with immunohistochemistry determination of brain caspase-3 were also evaluated. Furthermore, docking simulation was adapted to understand the inhibitory role of FA on caspase-3 and NO synthase. Compared to DEHP-intoxicated rats, FA-treated rats displayed improved cognitive memory associated with a reduced anxious state. Also, the redox state was maintained with increased BNDF levels. These changes were confirmed by restoring the normal architecture of brain tissue and a decrement in the immunohistochemistry caspase-3. In conclusion, FA has potent antioxidant and antiapoptotic properties that confirm the neuroprotective activity of FA, with a possible prospect for its therapeutic capabilities and nutritional supplement value.
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Affiliation(s)
- Mhasen Khalifa
- Veterinary Hygiene and Management Department, Faculty of Vet. Medicine, Cairo University, Giza, 12211, Egypt
| | - Rabie H Fayed
- Veterinary Hygiene and Management Department, Faculty of Vet. Medicine, Cairo University, Giza, 12211, Egypt.
| | - Yasmine H Ahmed
- Cytology and Histology Department, Faculty of Vet. Medicine, Cairo University, Giza, 12211, Egypt
| | - Ahmed A Sedik
- Pharmacology Department, Medical Research and Clinical Studies Institute, National Research Centre, Giza, 12622, Egypt
| | - Nehad M El-Dydamony
- Pharmaceutical Chemistry Department, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, 6Th of October City, 12585, Egypt
| | - Heba M A Khalil
- Veterinary Hygiene and Management Department, Faculty of Vet. Medicine, Cairo University, Giza, 12211, Egypt.
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14
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Soares S, Serralha F, Paz MC, Carriço N, Galatanu SV. Unveiling the data: An analysis of plastic waste with emphasis on the countries of the E³UDRES 2 alliance. Heliyon 2024; 10:e28375. [PMID: 38560229 PMCID: PMC10979095 DOI: 10.1016/j.heliyon.2024.e28375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 12/11/2023] [Accepted: 03/18/2024] [Indexed: 04/04/2024] Open
Abstract
This paper offers an examination of the current plastic waste landscape, with emphasis on the nine countries of the European University Alliance E³UDRES2, based on both the literature and official numbers, to verify the alignment of practical waste management practices with scientific tendencies and advancements. The paper includes a bibliometric analysis focusing on the overall plastic waste literature and the plastic waste literature of the E³UDRES2 countries. Additionally, a mass balance was calculated regarding the domestic waste management of each of the alliance countries in 2021. The main goal is to assess how scientific research in the field of plastic waste management is being implemented in practice, particularly in the context of the E³UDRES2 countries. Bibliometric results reveal significant growth in publications since 2006, with China, the USA, and India leading. Key themes reveal evident clusters around behavior and technology, encompassing both the properties of plastics and societal attitudes toward waste management policy measures. Mass balance results reveal that, in the nine countries of the alliance, Latvia and Finland exhibited high plastic recycling rates (85% and 49%, respectively), and Germany, despite its high population, generated less waste per capita and incinerated 64% of its plastic waste. Despite progress, the results highlight ongoing challenges in implementing comprehensive circular economy-focused policies for waste management in Europe yet reveal a growing commitment to improving waste treatment systems, leading to lower environmental impacts of plastic waste.
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Affiliation(s)
- Sara Soares
- Instituto Politécnico de Setúbal (Polytechnic University of Setúbal), Barreiro School of Technology, Rua Américo da Silva Marinho, 2839-001, Lavradio, Portugal
| | - Fátima Serralha
- Instituto Politécnico de Setúbal (Polytechnic University of Setúbal), Barreiro School of Technology, Rua Américo da Silva Marinho, 2839-001, Lavradio, Portugal
| | - Maria Catarina Paz
- Instituto Politécnico de Setúbal (Polytechnic University of Setúbal), Barreiro School of Technology, Rua Américo da Silva Marinho, 2839-001, Lavradio, Portugal
| | - Nelson Carriço
- Instituto Politécnico de Setúbal (Polytechnic University of Setúbal), Barreiro School of Technology, Rua Américo da Silva Marinho, 2839-001, Lavradio, Portugal
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15
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Cruz RMS, Rainer B, Wagner I, Krauter V, Janalíková M, Vicente AA, Vieira JM. Valorization of Cork Stoppers, Coffee-Grounds and Walnut Shells in the Development and Characterization of Pectin-Based Composite Films: Physical, Barrier, Antioxidant, Genotoxic, and Biodegradation Properties. Polymers (Basel) 2024; 16:1053. [PMID: 38674972 PMCID: PMC11053454 DOI: 10.3390/polym16081053] [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: 02/20/2024] [Revised: 04/05/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
The development of sustainable materials from the valorization of waste is a good alternative to reducing the negative environmental impact of plastic packaging. The objectives of this study were to develop and characterize pectin-based composite films incorporated with cork or cork with either coffee grounds or walnut shells, as well as to test the films' genotoxicity, antioxidant properties, and biodegradation capacity in soil and seawater. The addition of cork, coffee grounds, or walnut shells modified the films' characteristics. The results showed that those films were thicker (0.487 ± 0.014 mm to 0.572 ± 0.014 mm), more opaque (around 100%), darker (L* = 25.30 ± 0.78 to 33.93 ± 0.84), and had a higher total phenolic content (3.17 ± 0.01 mg GA/g to 4.24 ± 0.02 mg GA/g). On the other hand, the films incorporated only with cork showed higher values of elongation at break (32.24 ± 1.88% to 36.30 ± 3.25%) but lower tensile strength (0.91 ± 0.19 MPa to 1.09 ± 0.08 MPa). All the films presented more heterogeneous and rougher microstructures than the pectin film. This study also revealed that the developed films do not contain DNA-reactive substances and that they are biodegradable in soil and seawater. These positive properties could subsequently make the developed films an interesting eco-friendly food packaging solution that contributes to the valorization of organic waste and by-products, thus promoting the circular economy and reducing the environmental impact of plastic materials.
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Affiliation(s)
- Rui M. S. Cruz
- Department of Food Engineering, Institute of Engineering, Universidade do Algarve, Campus da Penha, 8005-139 Faro, Portugal
- MED—Mediterranean Institute for Agriculture, Environment and Development & CHANGE—Global Change and Sustainability Institute, Faculty of Sciences and Technology, Campus de Gambelas, Universidade do Algarve, 8005-139 Faro, Portugal
| | - Bernhard Rainer
- Packaging and Resource Management, Department Applied Life Sciences, FH Campus Wien, University of Applied Sciences, 1100 Vienna, Austria; (B.R.); (I.W.); (V.K.)
| | - Isabella Wagner
- Packaging and Resource Management, Department Applied Life Sciences, FH Campus Wien, University of Applied Sciences, 1100 Vienna, Austria; (B.R.); (I.W.); (V.K.)
| | - Victoria Krauter
- Packaging and Resource Management, Department Applied Life Sciences, FH Campus Wien, University of Applied Sciences, 1100 Vienna, Austria; (B.R.); (I.W.); (V.K.)
| | - Magda Janalíková
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 275, 760 01 Zlín, Czech Republic;
| | - António A. Vicente
- CEB—Centre of Biological Engineering, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (A.A.V.); (J.M.V.)
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
| | - Jorge M. Vieira
- CEB—Centre of Biological Engineering, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (A.A.V.); (J.M.V.)
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
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16
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Kalangutkar N, Mhapsekar S, Redkar P, Valsan G, Warrier AK. Microplastic pollution in the Chapora River, Goa, Southwest India: spatial distribution and risk assessment. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:409. [PMID: 38564102 DOI: 10.1007/s10661-024-12587-1] [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: 12/22/2023] [Accepted: 03/25/2024] [Indexed: 04/04/2024]
Abstract
The amount of information available on the microplastic (MP) contamination in Goa's riverine water systems is currently limited. The abundance, size, colour, and polymer composition of microplastics in Chapora River surface water were investigated in this study. MPs in Chapora River surface water ranged from 0.1 particles/L (station 13) to 0.47 particles/L (station 5). The mean (± standard deviation) MP concentration was 0.25 (± 0.13) particles/L. Fibre was the dominant shape (77.15%), followed by fragments (12.36%), films (9.36%), and foam (1.12%). Most MPs were found in the 0.1-0.3 mm size range, then in the 0.3-1 mm and 1-5 mm. The dominant type of polymer studied was polyethylene terephthalate (PET; 46%), followed by high-density polyethylene (HDPE; 14%), polypropylene (PP; 5%), and polystyrene (PS; 1%). The risk assessment study indicated high risk with respect to PHI, while PLI shows low risk in the area. The source of MPs was mostly anthropogenic in nature in the region. When compared with other tropical rivers, MP pollution was relatively lower in the Chapora River. Nevertheless, the baseline data will help the local administration take mitigation measures to reduce the impact of MP pollution in the region.
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Affiliation(s)
- Niyati Kalangutkar
- School of Earth, Ocean and Atmospheric Sciences, Goa University, Taleigao Plateau, Taleigao, 403206, Goa, India.
| | - Shritesh Mhapsekar
- School of Earth, Ocean and Atmospheric Sciences, Goa University, Taleigao Plateau, Taleigao, 403206, Goa, India
- Department of Geology, Government College of Arts, Science and Commerce, Sanquelim, 403505, Goa, India
| | - Prachi Redkar
- School of Earth, Ocean and Atmospheric Sciences, Goa University, Taleigao Plateau, Taleigao, 403206, Goa, India
| | - Gokul Valsan
- Centre for Climate Studies, Department of Civil Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Anish Kumar Warrier
- Centre for Climate Studies, Department of Civil Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
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17
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Tan H, Othman MHD, Chong WT, Kek HY, Wong SL, Nyakuma BB, Mong GR, Wahab RA, Wong KY. Turning plastics/microplastics into valuable resources? Current and potential research for future applications. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 356:120644. [PMID: 38522274 DOI: 10.1016/j.jenvman.2024.120644] [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: 07/27/2023] [Revised: 01/26/2024] [Accepted: 03/10/2024] [Indexed: 03/26/2024]
Abstract
Plastics are a wide range of synthetic or semi-synthetic materials, mainly consisting of polymers. The use of plastics has increased to over 300 million metric tonnes in recent years, and by 2050, it is expected to grow to 800 million. Presently, a mere 10% of plastic waste is recycled, with approximately 75% ended up in landfills. Inappropriate disposal of plastic waste into the environment poses a threat to human lives and marine species. Therefore, this review article highlights potential routes for converting plastic/microplastic waste into valuable resources to promote a greener and more sustainable environment. The literature review revealed that plastics/microplastics (P/MP) could be recycled or upcycled into various products or materials via several innovative processes. For example, P/MP are recycled and utilized as anodes in lithium-ion (Li-ion) and sodium-ion (Na-ion) batteries. The anode in Na-ion batteries comprising PP carbon powder exhibits a high reversible capacity of ∼340 mAh/g at 0.01 A/g current state. In contrast, integrating Fe3O4 and PE into a Li-ion battery yielded an excellent capacity of 1123 mAh/g at 0.5 A/g current state. Additionally, recycled Nylon displayed high physical and mechanical properties necessary for excellent application as 3D printing material. Induction heating is considered a revolutionary pyrolysis technique with improved yield, efficiency, and lower energy utilization. Overall, P/MPs are highlighted as abundant resources for the sustainable production of valuable products and materials such as batteries, nanomaterials, graphene, and membranes for future applications.
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Affiliation(s)
- Huiyi Tan
- Faculty of Chemical and Energy Engineering, University Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Mohd Hafiz Dzarfan Othman
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknlogi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Wen Tong Chong
- Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Hong Yee Kek
- Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Syie Luing Wong
- Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Bemgba Bevan Nyakuma
- Department of Chemical Sciences, Faculty of Science and Computing, Pen Resource University, P. M. B. 08, Gombe, Gombe State, Nigeria
| | - Guo Ren Mong
- School of Energy and Chemical Engineering, Xiamen University Malaysia, 43900, Sepang, Selangor, Malaysia
| | | | - Keng Yinn Wong
- Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia; Process Systems Engineering Centre (PROSPECT), Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia.
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18
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Zahid H, Afzal N, Arif MM, Zahid M, Nawab S, Qasim MM, Alvi FN, Nazir S, Perveen I, Abbas N, Saleem Y, Mazhar S, Nawaz S, Faridi TA, Awan HMA, Syed Q, Abidi SHI. Microorganism-mediated biodegradation for effective management and/or removal of micro-plastics from the environment: a comprehensive review. Arch Microbiol 2024; 206:198. [PMID: 38558101 DOI: 10.1007/s00203-024-03904-w] [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: 01/01/2024] [Revised: 02/18/2024] [Accepted: 02/19/2024] [Indexed: 04/04/2024]
Abstract
Micro- plastics (MPs) pose significant global threats, requiring an environment-friendly mode of decomposition. Microbial-mediated biodegradation and biodeterioration of micro-plastics (MPs) have been widely known for their cost-effectiveness, and environment-friendly techniques for removing MPs. MPs resistance to various biocidal microbes has also been reported by various studies. The biocidal resistance degree of biodegradability and/or microbiological susceptibility of MPs can be determined by defacement, structural deformation, erosion, degree of plasticizer degradation, metabolization, and/or solubilization of MPs. The degradation of microplastics involves microbial organisms like bacteria, mold, yeast, algae, and associated enzymes. Analytical and microbiological techniques monitor microplastic biodegradation, but no microbial organism can eliminate microplastics. MPs can pose environmental risks to aquatic and human life. Micro-plastic biodegradation involves fragmentation, assimilation, and mineralization, influenced by abiotic and biotic factors. Environmental factors and pre-treatment agents can naturally degrade large polymers or induce bio-fragmentation, which may impact their efficiency. A clear understanding of MPs pollution and the microbial degradation process is crucial for mitigating its effects. The study aimed to identify deteriogenic microorganism species that contribute to the biodegradation of micro-plastics (MPs). This knowledge is crucial for designing novel biodeterioration and biodegradation formulations, both lab-scale and industrial, that exhibit MPs-cidal actions, potentially predicting MPs-free aquatic and atmospheric environments. The study emphasizes the urgent need for global cooperation, research advancements, and public involvement to reduce micro-plastic contamination through policy proposals and improved waste management practices.
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Affiliation(s)
- Hassan Zahid
- Department of Public Health, University of Health Sciences, Lahore, Pakistan
| | - Nimra Afzal
- Faculty of Science and Technology, University of Central Punjab, Lahore, Pakistan
| | - Muhammad Maaz Arif
- Department of Medical Education, University of Health Sciences, Lahore, Pakistan
| | - Mahnoor Zahid
- Department of Biochemistry and Molecular Biology, University of Gujrat, Gujrat, Pakistan
| | - Samia Nawab
- Government Graduate College (W), Township, Lahore, Pakistan
| | | | | | | | - Ishrat Perveen
- Food and Biotechnology Research Centre, Pakistan Council of Scientific and Industrial Research Centre, Lahore, Pakistan.
| | - Naaz Abbas
- Minhaj University Lahore, Lahore, Pakistan
| | - Yasar Saleem
- Food and Biotechnology Research Centre, Pakistan Council of Scientific and Industrial Research Centre, Lahore, Pakistan
| | - Sania Mazhar
- Food and Biotechnology Research Centre, Pakistan Council of Scientific and Industrial Research Centre, Lahore, Pakistan
| | - Shaista Nawaz
- Food and Biotechnology Research Centre, Pakistan Council of Scientific and Industrial Research Centre, Lahore, Pakistan
| | | | | | - Quratulain Syed
- Food and Biotechnology Research Centre, Pakistan Council of Scientific and Industrial Research Centre, Lahore, Pakistan
| | - Syed Hussain Imam Abidi
- Food and Biotechnology Research Centre, Pakistan Council of Scientific and Industrial Research Centre, Lahore, Pakistan
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19
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Weiland F, Kohlstedt M, Wittmann C. Biobased de novo synthesis, upcycling, and recycling - the heartbeat toward a green and sustainable polyethylene terephthalate industry. Curr Opin Biotechnol 2024; 86:103079. [PMID: 38422776 DOI: 10.1016/j.copbio.2024.103079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/19/2024] [Accepted: 01/24/2024] [Indexed: 03/02/2024]
Abstract
Polyethylene terephthalate (PET) has revolutionized the industrial sector because of its versatility, with its predominant uses in the textiles and packaging materials industries. Despite the various advantages of this polymer, its synthesis is, unfavorably, tightly intertwined with nonrenewable fossil resources. Additionally, given its widespread use, accumulating PET waste poses a significant environmental challenge. As a result, current research in the areas of biological recycling, upcycling, and de novo synthesis is intensifying. Biological recycling involves the use of micro-organisms or enzymes to breakdown PET into monomers, offering a sustainable alternative to traditional recycling. Upcycling transforms PET waste into value-added products, expanding its potential application range and promoting a circular economy. Moreover, studies of cascading biological and chemical processes driven by microbial cell factories have explored generating PET using renewable, biobased feedstocks such as lignin. These avenues of research promise to mitigate the environmental footprint of PET, underlining the importance of sustainable innovations in the industry.
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Affiliation(s)
- Fabia Weiland
- Institute of Systems Biotechnology, Saarland University, Germany
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20
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Quan Z, Xu X, Wang W, Jiang J, Gao S. Do industrial solid waste recycling and technological innovation promote low-carbon development in China? New insights from NARDL approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 916:170446. [PMID: 38278237 DOI: 10.1016/j.scitotenv.2024.170446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/21/2024] [Accepted: 01/23/2024] [Indexed: 01/28/2024]
Abstract
Recycling waste is crucial for consolidating resources and promoting sustainable development, serving a pivotal role in achieving the objectives of carbon peak and carbon neutrality. Nonetheless, most existing research has primarily focused on municipal solid waste (MSW) recycling, often neglecting the significant volume of industrial solid waste (ISW). This study aims to explore the asymmetric effects of industrial solid waste recycling and technological innovation on the low-carbon development. To this end, this study selects GDP and carbon intensity as indicators representing economic growth and environmental quality. A variable that can enhance GDP growth while reducing carbon intensity signifies its contribution to low-carbon development. By collecting data from China over the period of 1985-2020, non-linear autoregressive distributed lag (NARDL) models of GDP and carbon intensity are established to discover whether the low-carbon development can be achieved by enacting ISW recycling and technological innovation. The results show the asymmetric shocks of ISW recycling and technological innovation on economic growth and environmental quality. In the long run, both ISW recycling and technological innovation promote low-carbon development. In the short run, technological innovation proved to be detrimental to economic growth and environmental quality. This paper also highlights the inhibitory effect of the labor force on economic growth. The "pollution haven hypothesis" is supported by the finding that foreign direct investment reduces carbon intensity. Additionally, the Granger test revealed the direction of the variables' causality. Based on empirical findings, policymakers can protect the environment and create economic value simultaneously through waste recycling and technological innovation, thereby realizing low-carbon development.
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Affiliation(s)
- Zichuan Quan
- School of Management Engineering, Qingdao University of Technology, Qingdao 266520, China
| | - Xi Xu
- School of Management Engineering, Qingdao University of Technology, Qingdao 266520, China
| | - Weihao Wang
- School of Management Engineering, Qingdao University of Technology, Qingdao 266520, China.
| | - Jikun Jiang
- School of Management Engineering, Qingdao University of Technology, Qingdao 266520, China
| | - Shuning Gao
- School of Management Engineering, Qingdao University of Technology, Qingdao 266520, China
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21
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Demchuk Z, Zhao X, Shen Z, Zhao S, Sokolov AP, Cao PF. Tuning the Mechanical and Dynamic Properties of Elastic Vitrimers by Tailoring the Substituents of Boronic Ester. ACS MATERIALS AU 2024; 4:185-194. [PMID: 38496049 PMCID: PMC10941276 DOI: 10.1021/acsmaterialsau.3c00074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 12/02/2023] [Accepted: 12/12/2023] [Indexed: 03/19/2024]
Abstract
Elastic vitrimers, i.e., elastic polymers with associative dynamic covalent bonds, can afford elastomers with recyclability while maintaining their thermal and chemical stability. Herein, we report a series of boronic ester-based vitrimers with tunable mechanical properties and recyclability by varying the substitute groups of boronic acid in polymer networks. The dynamic polymer networks are formed by reacting diol-containing tetra-arm poly(amidoamine) with boronic acid-terminated tetra-arm poly(ethylene glycol), which possesses different substituents adjacent to boronic acid moieties. Varying the substituent adjacent to the boronic ester unit will significantly affect the binding strength of the boronic ester, therefore affecting their dynamics and mechanical performance. The electron-withdrawing substituents noticeably suppress the dynamics of boronic ester exchange and increase the activation energy and relaxation time while enhancing the mechanical strength of the resulting elastic vitrimers. On the other hand, the presence of electron-rich substituent affords relatively reduced glass transition temperature (Tg), faster relaxation, and prominent recyclability and malleability at lower temperatures. The developed pathway will guide the rational design of elastomers with well-tunable dynamics and processabilities.
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Affiliation(s)
- Zoriana Demchuk
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Xiao Zhao
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Zhiqiang Shen
- Center
for Nanophase Materials Sciences, Oak Ridge
National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Sheng Zhao
- Department
of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Alexei P. Sokolov
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
- Department
of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Peng-Fei Cao
- State
Key Laboratory of Organic–Inorganic Composites, College of
Materials Science and Engineering, Beijing
University of Chemical Technology, Beijing 100029, China
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22
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Eom S, Shim W, Choi I. Microplastic-induced inhibition of cell adhesion and toxicity evaluation using human dermal fibroblast-derived spheroids. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133359. [PMID: 38171200 DOI: 10.1016/j.jhazmat.2023.133359] [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: 12/05/2023] [Accepted: 12/21/2023] [Indexed: 01/05/2024]
Abstract
Nanoplastics and microplastics (MPs) can significantly affect marine ecosystems and pose potential risks to human health. Although adverse effects stemming from direct exposure to MPs have been demonstrated at the cellular level in animal models, the potential toxicity of these materials in the human body remains uncertain. In this study, we investigated the three-dimensional (3D) behavior of dermal-derived cells exposed to MPs using artificially manufactured spherical primary polystyrene (PS) particles. To explore these effects, we used cellular spheroids as a 3D cell culture model, examined the size-dependent penetration of PS-MPs, and observed morphological alterations in the spheroids. Furthermore, we assessed changes in physiological activities, including reactive oxygen species, adenosine triphosphate, and lactate dehydrogenase, to elucidate the potential intra- and extracellular toxic reactions to PS-MPs. Additionally, our examination of cell-cell junctions and the extracellular matrix (ECM), along with analysis of the regulators involved in their decreased integrity, revealed negatively influenced changes in expression. This exposure study using spheroid models provides new insights into the potential toxicity of short-term exposure to MPs under conditions that closely resemble in vivo systems.
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Affiliation(s)
- Seonghyeon Eom
- Department of Life Science, University of Seoul, Seoul 02504, Republic of Korea
| | - Woosung Shim
- Department of Life Science, University of Seoul, Seoul 02504, Republic of Korea
| | - Inhee Choi
- Department of Life Science, University of Seoul, Seoul 02504, Republic of Korea; Department of Applied Chemistry, University of Seoul, Seoul 02504, Republic of Korea.
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23
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Mutlu T, Minaz M, Baytaşoğlu H, Gedik K. Microplastic pollution in stream sediments discharging from Türkiye's eastern Black sea basin. CHEMOSPHERE 2024; 352:141496. [PMID: 38373447 DOI: 10.1016/j.chemosphere.2024.141496] [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: 06/25/2023] [Revised: 11/29/2023] [Accepted: 02/16/2024] [Indexed: 02/21/2024]
Abstract
Rivers are the principal route for terrestrial microplastics to reach the marine environment. The Black Sea exhibits a notable representation because it has a drainage zone almost six times the surface area and is semi-closed, meaning that microplastics tend to gather there. To mitigate MP pollution, it is necessary to identify the contamination sources and then raise public awareness. Thus, the current study focused on the MP presence in the sediment of streams running into the SE Black Sea. 594 MPs were observed in sediment samples from 16 stations along the 350 km coastline. The abundance of MP was higher, particularly in streams that pass through locations with high tourism and industrial activity levels. Detected MPs ranged between 0.1 and 5 mm, while the overall density was smaller than 1 mm. Fragments and fiber MPs were regularly detected, although the presence of films was rarely recorded. The polymer structures that were most commonly observed in the analyzed pollutants were PET and PE. The current study uncovered MP contamination in stream sediments originating from Türkiye's Eastern Black Sea basin and might be a baseline work for future inland water studies.
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Affiliation(s)
- Tanju Mutlu
- Vocational School of Technical Sciences, Recep Tayyip Erdogan University, 53100, Rize, Turkey
| | - Mert Minaz
- Department of Aquaculture, Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey.
| | - Hazel Baytaşoğlu
- Department of Aquaculture, Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Kenan Gedik
- Vocational School of Technical Sciences, Recep Tayyip Erdogan University, 53100, Rize, Turkey.
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24
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Bakan B, Kalčec N, Liu S, Ilić K, Qi Y, Capjak I, Božičević L, Peranić N, Vrček IV. Science-based evidence on pathways and effects of human exposure to micro- and nanoplastics. Arh Hig Rada Toksikol 2024; 75:1-14. [PMID: 38548377 PMCID: PMC10978163 DOI: 10.2478/aiht-2024-75-3807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/01/2023] [Accepted: 02/01/2024] [Indexed: 04/01/2024] Open
Abstract
Human exposure to plastic particles has raised great concern among all relevant stakeholders involved in the protection of human health due to the contamination of the food chain, surface waters, and even drinking water as well as due to their persistence and bioaccumulation. Now more than ever, it is critical that we understand the biological fate of plastics and their interaction with different biological systems. Because of the ubiquity of plastic materials in the environment and their toxic potential, it is imperative to gain reliable, regulatory-relevant, science-based data on the effects of plastic micro- and nanoparticles (PMNPs) on human health in order to implement reliable risk assessment and management strategies in the circular economy of plastics. This review presents current knowledge of human-relevant PMNP exposure doses, pathways, and toxic effects. It addresses difficulties in properly assessing plastic exposure and current knowledge gaps and proposes steps that can be taken to underpin health risk perception, assessment, and mitigation through rigorous science-based evidence. Based on the existing scientific data on PMNP adverse health effects, this review brings recommendations on the development of PMNP-specific adverse outcome pathways (AOPs) following the AOP Users' Handbook of the Organisation for Economic Cooperation and Development (OECD).
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Affiliation(s)
- Buket Bakan
- Institute for Medical Research and Occupational Health, Zagreb, Croatia
- Atatürk University Faculty of Science, Department of Molecular Biology and Genetics, Erzurum, Turkey
| | - Nikolina Kalčec
- Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | - Sijin Liu
- Chinese Academy of Sciences Research Centre for Eco-Environmental Sciences, Beijing, China
| | - Krunoslav Ilić
- Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | - Yu Qi
- Chinese Academy of Sciences Research Centre for Eco-Environmental Sciences, Beijing, China
| | - Ivona Capjak
- Croatian Institute of Transfusion Medicine, Zagreb, Croatia
| | - Lucija Božičević
- Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | - Nikolina Peranić
- Institute for Medical Research and Occupational Health, Zagreb, Croatia
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25
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Lhamo P, Mahanty B. Impact of Acetic Acid Supplementation in Polyhydroxyalkanoates Production by Cupriavidus necator Using Mixture-Process Design and Artificial Neural Network. Appl Biochem Biotechnol 2024; 196:1155-1174. [PMID: 37166651 DOI: 10.1007/s12010-023-04567-x] [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] [Accepted: 05/03/2023] [Indexed: 05/12/2023]
Abstract
The trend in bioplastic application has increased over the years where polyhydroxyalkanoates (PHAs) have emerged as a potential candidate with the advantage of being bio-origin, biodegradable, and biocompatible. The present study aims to understand the effect of acetic acid concentration (in combination with sucrose) as a mixture variable and its time of addition (process variable) on PHA production by Cupriavidus necator. The addition of acetic acid at a concentration of 1 g l-1 showed a positive influence on biomass and PHA yield; however, the further increase had a reversal effect. The addition of acetic acid at the time of incubation showed a higher PHA yield, whereas maximum biomass was achieved when acetic acid was added after 48 h. Genetic algorithm (GA) optimized artificial neural network (ANN) was used to model PHA concentration from mixture-process design data. Fitness of the GA-ANN model (R2: 0.935) was superior when compared to the polynomial model (R2: 0.301) from mixture design. Optimization of the ANN model projected 2.691 g l-1 PHA from 7.245 g l-1 acetic acid, 12.756 g l-1 sucrose, and the addition of acetic acid at the time of incubation. Sensitivity analysis indicates the inhibitory effect of all the predictors at higher levels. ANN model can be further used to optimize the variables while extending the bioprocess to fed-batch operation.
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Affiliation(s)
- Pema Lhamo
- Karunya Institute of Technology and Sciences, Coimbatore, India
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26
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Gobbato J, Becchi A, Bises C, Siena F, Lasagni M, Saliu F, Galli P, Montano S. Occurrence of phthalic acid esters (PAEs) and active pharmaceutical ingredients (APIs) in key species of anthozoans in Mediterranean Sea. MARINE POLLUTION BULLETIN 2024; 200:116078. [PMID: 38290362 DOI: 10.1016/j.marpolbul.2024.116078] [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: 07/14/2023] [Revised: 01/17/2024] [Accepted: 01/24/2024] [Indexed: 02/01/2024]
Abstract
The Mediterranean Sea's biodiversity is declining due to climate change and human activities, with plastics and emerging contaminants (ECs) posing significant threats. This study assessed phthalic acid esters (PAEs) and active pharmaceutical ingredients (APIs) occurrence in four anthozoan species (Cladocora caespitosa, Eunicella cavolini, Madracis pharensis, Parazoanthus axinellae) using solid phase microextraction (SPME) and liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS). All specimens were contaminated with at least one contaminant, reaching maximum values of 57.3 ng/g for the ∑PAEs and 64.2 ng/g (wet weight) for ∑APIs, with dibutyl phthalate and Ketoprofen being the most abundant. P. axinellae was the most contaminated species, indicating higher susceptibility to bioaccumulation, while the other three species showed two-fold lower concentrations. Moreover, the potential adverse effects of these contaminants on anthozoans have been discussed. Investigating the impact of PAEs and APIs on these species is crucial, given their key role in the Mediterranean benthic communities.
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Affiliation(s)
- J Gobbato
- Department of Earth and Environmental Sciences (DISAT), University of Milan - Bicocca, Piazza della Scienza, 20126 Milan, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, 12030 Faafu Atoll, Maldives.
| | - A Becchi
- Department of Earth and Environmental Sciences (DISAT), University of Milan - Bicocca, Piazza della Scienza, 20126 Milan, Italy
| | - C Bises
- Department of Earth and Environmental Sciences (DISAT), University of Milan - Bicocca, Piazza della Scienza, 20126 Milan, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, 12030 Faafu Atoll, Maldives
| | - F Siena
- Department of Earth and Environmental Sciences (DISAT), University of Milan - Bicocca, Piazza della Scienza, 20126 Milan, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, 12030 Faafu Atoll, Maldives
| | - M Lasagni
- Department of Earth and Environmental Sciences (DISAT), University of Milan - Bicocca, Piazza della Scienza, 20126 Milan, Italy
| | - F Saliu
- Department of Earth and Environmental Sciences (DISAT), University of Milan - Bicocca, Piazza della Scienza, 20126 Milan, Italy
| | - P Galli
- Department of Earth and Environmental Sciences (DISAT), University of Milan - Bicocca, Piazza della Scienza, 20126 Milan, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, 12030 Faafu Atoll, Maldives; University of Dubai, P.O. Box 14143, Dubai Academic City, United Arab Emirates; NBFC (National Biodiversity Future Center), 90133 Palermo, Italy
| | - S Montano
- Department of Earth and Environmental Sciences (DISAT), University of Milan - Bicocca, Piazza della Scienza, 20126 Milan, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, 12030 Faafu Atoll, Maldives; NBFC (National Biodiversity Future Center), 90133 Palermo, Italy
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27
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Jiao H, Ali SS, Alsharbaty MHM, Elsamahy T, Abdelkarim E, Schagerl M, Al-Tohamy R, Sun J. A critical review on plastic waste life cycle assessment and management: Challenges, research gaps, and future perspectives. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 271:115942. [PMID: 38218104 DOI: 10.1016/j.ecoenv.2024.115942] [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: 09/08/2023] [Revised: 12/12/2023] [Accepted: 01/03/2024] [Indexed: 01/15/2024]
Abstract
The global production and consumption of plastics, as well as their deposition in the environment, are experiencing exponential growth. In addition, mismanaged plastic waste (PW) losses into drainage channels are a growing source of microplastic (MP) pollution concern. However, the complete understanding of their environmental implications throughout their life cycle is yet to be fully understood. Determining the potential extent to which MPs contribute to overall ecotoxicity is possible through the monitoring of PW release and MP removal during remediation. Life cycle assessments (LCAs) have been extensively utilized in many comparative analyses, such as comparing petroleum-based plastics with biomass and single-use plastics with multi-use alternatives. These assessments typically yield unexpected or paradoxical results. Nevertheless, there is still a paucity of reliable data and tools for conducting LCAs on plastics. On the other hand, the release and impact of MP have so far not been considered in LCA studies. This is due to the absence of inventory-related data regarding MP releases and the characterization factors necessary to quantify the effects of MP. Therefore, this review paper conducts a comprehensive literature review in order to assess the current state of knowledge and data regarding the environmental impacts that occur throughout the life cycle of plastics, along with strategies for plastic management through LCA.
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Affiliation(s)
- Haixin Jiao
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Sameh S Ali
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt.
| | - Mohammed Husssein M Alsharbaty
- Department of Prosthodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq; Branch of Prosthodontics, College of Dentistry, University of Al-Ameed, Karbala, Iraq.
| | - Tamer Elsamahy
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Esraa Abdelkarim
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Michael Schagerl
- Department of Functional and Evolutionary Ecology, University of Vienna, Djerassiplatz 1, Vienna A-1030, Austria.
| | - Rania Al-Tohamy
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jianzhong Sun
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China.
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28
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Maisto M, Ranauda MA, Zuzolo D, Tartaglia M, Postiglione A, Prigioniero A, Falzarano A, Scarano P, Castelvetro V, Corti A, Modugno F, La Nasa J, Biale G, Sciarrillo R, Guarino C. Effects of microplastics on microbial community dynamics in sediments from the Volturno River ecosystem, Italy. CHEMOSPHERE 2024; 349:140872. [PMID: 38056715 DOI: 10.1016/j.chemosphere.2023.140872] [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: 07/20/2023] [Revised: 11/27/2023] [Accepted: 11/30/2023] [Indexed: 12/08/2023]
Abstract
In this study, the sources, abundance, and ecological implications of microplastic (MP) pollution in Volturno, one of the main rivers in southern Italy, were explored by investigating the MP concentration levels in sediments collected along the watercourse. The samples were sieved through 5- and 2-mm sieves and treated with selective organic solvents. The polymer classes polystyrene (PS), polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polycarbonate (PC), nylon 6 (PA6), and nylon 6,6 (PA66) were quantified using pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS) and high-performance liquid chromatography (HPLC). Furthermore, a 16S rRNA metagenomic analysis was performed using next-generation sequencing in Ion Torrent™ to explore the bacterial taxonomy and ecological dynamics of sediment samples. The MPs were detected in all samples collected from the study area. PP and PET were the most abundant and frequently detected polymer types in the analysed samples. The total MP concentration ranged from 1.05 to 14.55 ppm (parts per million), identifying two distinct data populations: high- and low-MP-contaminated sediments. According to the Polymer Hazard Index (PHI), MP pollution was categorised as hazard levels III and IV (corresponding to the danger category). Metagenomic data revealed that the presence of MPs significantly affected the abundance of bacterial taxa; Flavobacteraceae and Nocardiaceae, which are known to degrade polymeric substances, were present in high-MP-contaminated sediments. This study provides new insights into the ecological relevance of MP pollution and suggests that microorganisms may serve as biomarkers of MP pollution.
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Affiliation(s)
- Maria Maisto
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
| | - Maria Antonietta Ranauda
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
| | - Daniela Zuzolo
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy.
| | - Maria Tartaglia
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
| | - Alessia Postiglione
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
| | - Antonello Prigioniero
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
| | - Alessandra Falzarano
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
| | - Pierpaolo Scarano
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
| | - Valter Castelvetro
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Giuseppe Moruzzi, 13, 56124, Pisa, Italy
| | - Andrea Corti
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Giuseppe Moruzzi, 13, 56124, Pisa, Italy
| | - Francesca Modugno
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Giuseppe Moruzzi, 13, 56124, Pisa, Italy
| | - Jacopo La Nasa
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Giuseppe Moruzzi, 13, 56124, Pisa, Italy
| | - Greta Biale
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Giuseppe Moruzzi, 13, 56124, Pisa, Italy
| | - Rosaria Sciarrillo
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
| | - Carmine Guarino
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
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29
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Thi YVN, Vu TD, Do VQ, Ngo AD, Show PL, Chu DT. Residual toxins on aquatic animals in the Pacific areas: Current findings and potential health effects. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167390. [PMID: 37758133 DOI: 10.1016/j.scitotenv.2023.167390] [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: 08/11/2023] [Revised: 09/20/2023] [Accepted: 09/24/2023] [Indexed: 10/03/2023]
Abstract
The Pacific Ocean is among the five largest and deepest oceans in the world. The area of the Pacific Ocean covers about 28 % of the Earth's surface. This is the habitat of many marine species, and its diversity is recognized as a fundamental element of Pacific culture and heritage. The ecosystems of aquatic animals are highly affected by climate change and by other factors. Residual toxins on aquatic animals can be categorized into two types based on origin: toxins of marine origin and toxins associated with human activity. Residual toxins have emerged as a global concern in recent years due to their frequent presence in aquatic environments. Furthermore, residual toxins in organisms living in the marine environment in the Pacific Ocean region also seriously affect food safety, food security, and especially human health. In this review we discuss important issues about residual toxins on aquatic animals in the Pacific areas specifically about the types of toxins that exist in marine animals, their contamination pathways in the Asia, Pacific region and the potential health effects for humans, the application of information technology and artificial intelligence in residual toxins on aquatic animal.
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Affiliation(s)
- Yen Vy Nguyen Thi
- Center for Biomedicine and Community Health, International School, Vietnam National University, Hanoi, Viet Nam; Faculty of Applied Sciences, International School, Vietnam National University, Hanoi, Viet Nam
| | - Thuy-Duong Vu
- Center for Biomedicine and Community Health, International School, Vietnam National University, Hanoi, Viet Nam
| | - Van Quy Do
- Center for Biomedicine and Community Health, International School, Vietnam National University, Hanoi, Viet Nam
| | - Anh Dao Ngo
- Center for Biomedicine and Community Health, International School, Vietnam National University, Hanoi, Viet Nam
| | - Pau Loke Show
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Dinh Toi Chu
- Center for Biomedicine and Community Health, International School, Vietnam National University, Hanoi, Viet Nam; Faculty of Applied Sciences, International School, Vietnam National University, Hanoi, Viet Nam.
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30
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Hamedi S, Mahmoodi-Barmesi M, Kermanian H, Ramezani O, Razmpour Z. Investigation of physicochemical and biological properties of bacterial cellulose & zein-reinforced edible nanocomposites based on flaxseed mucilage containing Origanum vulgare L. essential oil. Int J Biol Macromol 2024; 254:127733. [PMID: 37918591 DOI: 10.1016/j.ijbiomac.2023.127733] [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: 07/09/2023] [Revised: 10/16/2023] [Accepted: 10/26/2023] [Indexed: 11/04/2023]
Abstract
In the present study, the effect of zein and different amounts of bacterial cellulose (BC; 1, 2 and 3 wt%) on the physical, mechanical and barrier properties of flaxseed mucilage/carboxymethyl cellulose (FM/CMC) composite was investigated. The appearance of the absorption band at 1320cm-1 in the ATR-FTIR spectra of nanocomposites indicated the successful introduction of zein into their structure. The characteristic peak at 2θ of 9° belonging to zein disappeared in XRD patterns of the prepared composites suggesting the successful coating of zein via hydrogen bonding interactions. SEM images proved the formation of semi-spherical zein microparticles in the FM/CMC matrix. TGA plots ascertained the addition of zein and nanocellulose caused a significant increase in the thermal stability of FM/CMC film, although zein showed a greater effect. The presence of zein and nanocellulose increased the mechanical strength of nanocomposites. The WVP of FM/CMC decreased after the incorporation of zein and nanocellulose, which created a tortuous path for the diffusion of water molecules. The zein particles exhibited a greater influence on improving the mechanical and barrier properties compared to nanocellulose. FM/CMC-Z film exhibited the highest mechanical strength (49.07 ± 5.89 MPa) and the lowest WVP (1.179 ± 0.076). The composites containing oregano essential oil (EO) showed higher than 60 % antibacterial properties. The bactericidal efficiency of FM/CMC/Z-EO and FM/CMC/Z-EO/BC1 nanocomposites decreased about 10% compared to FM/CMC/EO and FM/CMC-Z/BC1. This evidenced the successful encapsulation of EO molecules in zein particles. According to the in vitro release study, entrapment of EO into zein particles could delay the release and provide the extended antimicrobial effect.
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Affiliation(s)
- Sepideh Hamedi
- Faculty of New Technologies and Aerospace Engineering, Shahid Beheshti University, Tehran, Iran
| | | | - Hossein Kermanian
- Faculty of New Technologies and Aerospace Engineering, Shahid Beheshti University, Tehran, Iran.
| | - Omid Ramezani
- Faculty of New Technologies and Aerospace Engineering, Shahid Beheshti University, Tehran, Iran
| | - Zahra Razmpour
- Faculty of New Technologies and Aerospace Engineering, Shahid Beheshti University, Tehran, Iran
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31
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Sababadichetty L, Miltgen G, Vincent B, Guilhaumon F, Lenoble V, Thibault M, Bureau S, Tortosa P, Bouvier T, Jourand P. Microplastics in the insular marine environment of the Southwest Indian Ocean carry a microbiome including antimicrobial resistant (AMR) bacteria: A case study from Reunion Island. MARINE POLLUTION BULLETIN 2024; 198:115911. [PMID: 38103498 DOI: 10.1016/j.marpolbul.2023.115911] [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: 06/29/2023] [Revised: 11/13/2023] [Accepted: 12/05/2023] [Indexed: 12/19/2023]
Abstract
The increasing threats to ecosystems and humans from marine plastic pollution require a comprehensive assessment. We present a plastisphere case study from Reunion Island, a remote oceanic island located in the Southwest Indian Ocean, polluted by plastics. We characterized the plastic pollution on the island's coastal waters, described the associated microbiome, explored viable bacterial flora and the presence of antimicrobial resistant (AMR) bacteria. Reunion Island faces plastic pollution with up to 10,000 items/km2 in coastal water. These plastics host microbiomes dominated by Proteobacteria (80 %), including dominant genera such as Psychrobacter, Photobacterium, Pseudoalteromonas and Vibrio. Culturable microbiomes reach 107 CFU/g of microplastics, with dominance of Exiguobacterium and Pseudomonas. Plastics also carry AMR bacteria including β-lactam resistance. Thus, Southwest Indian Ocean islands are facing serious plastic pollution. This pollution requires vigilant monitoring as it harbors a plastisphere including AMR, that threatens pristine ecosystems and potentially human health through the marine food chain.
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Affiliation(s)
- Loik Sababadichetty
- Université de La Réunion, UMR ENTROPIE, 15 Avenue René Cassin, CS 92003, 97744 Saint Denis Cedex 9, La Réunion, France; CHU, Laboratoire de Bactériologie, CHU Félix Guyon, Allée des Topazes, 97400 Saint-Denis, La Réunion, France
| | - Guillaume Miltgen
- CHU, Laboratoire de Bactériologie, CHU Félix Guyon, Allée des Topazes, 97400 Saint-Denis, La Réunion, France; Université de La Réunion, UMR PIMIT Processus Infectieux en Milieu Insulaire Tropical, CNRS 9192, INSERM 1187, IRD 249, Plateforme de recherche CYROI, 2 rue Maxime Rivière, 97490 Ste Clotilde, La Réunion, France
| | - Bryan Vincent
- CIRAD, UMR040 LSTM, Campus Agro Environnemental Caraïbe, BP 214-97285, Cedex 2 le Lamentin, Martinique, Antilles Françaises, France
| | - François Guilhaumon
- IRD, UMR ENTROPIE, 15 Avenue René Cassin, CS 92003, 97744 Saint Denis Cedex 9, La Réunion, France
| | - Veronique Lenoble
- Université de Toulon, Aix Marseille Université, CNRS, IRD, UMR MIO, 83 Toulon, France
| | - Margot Thibault
- Université de La Réunion, UMR ENTROPIE, 15 Avenue René Cassin, CS 92003, 97744 Saint Denis Cedex 9, La Réunion, France; The Ocean Cleanup, Rotterdam, the Netherlands; CNRS, Université Toulouse III, Laboratoire des Interactions Moléculaires et Réactivité Chimique et Photochimique (IMRCP), UMR 5623, Toulouse, France
| | - Sophie Bureau
- Université de La Réunion, UMR ENTROPIE, 15 Avenue René Cassin, CS 92003, 97744 Saint Denis Cedex 9, La Réunion, France
| | - Pablo Tortosa
- Université de La Réunion, UMR PIMIT Processus Infectieux en Milieu Insulaire Tropical, CNRS 9192, INSERM 1187, IRD 249, Plateforme de recherche CYROI, 2 rue Maxime Rivière, 97490 Ste Clotilde, La Réunion, France
| | - Thierry Bouvier
- UMR MARBEC, Université Montpellier, CNRS, Ifremer, IRD, Montpellier, France
| | - Philippe Jourand
- IRD, UMR ENTROPIE, 15 Avenue René Cassin, CS 92003, 97744 Saint Denis Cedex 9, La Réunion, France.
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32
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Baneshi M, Tonney-Gagne J, Halilu F, Pilavangan K, Sabu Abraham B, Prosser A, Kanchanadevi Marimuthu N, Kaliaperumal R, Britten AJ, Mkandawire M. Unpacking Phthalates from Obscurity in the Environment. Molecules 2023; 29:106. [PMID: 38202689 PMCID: PMC10780137 DOI: 10.3390/molecules29010106] [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: 11/14/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
Phthalates (PAEs) are a group of synthetic esters of phthalic acid compounds mostly used as plasticizers in plastic materials but are widely applied in most industries and products. As plasticizers in plastic materials, they are not chemically bound to the polymeric matrix and easily leach out. Logically, PAEs should be prevalent in the environment, but their prevalence, transport, fate, and effects have been largely unknown until recently. This has been attributed, inter alia, to a lack of standardized analytical procedures for identifying them in complex matrices. Nevertheless, current advancements in analytical techniques facilitate the understanding of PAEs in the environment. It is now known that they can potentially impact ecological and human health adversely, leading to their categorization as endocrine-disrupting chemicals, carcinogenic, and liver- and kidney-failure-causing agents, which has landed them among contaminants of emerging concern (CECs). Thus, this review article reports and discusses the developments and advancements in PAEs' standard analytical methods, facilitating their emergence from obscurity. It further explores the opportunities, challenges, and limits of their advancements.
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Affiliation(s)
- Marzieh Baneshi
- Department of Chemistry, School of Science and Technology, Cape Breton University, 1250 Grand Lake Road, Sydney, NS B1P 6L2, Canada (F.H.); (K.P.); (B.S.A.); (A.P.); (N.K.M.); (R.K.); (A.J.B.)
| | - Jamey Tonney-Gagne
- Department of Chemistry, School of Science and Technology, Cape Breton University, 1250 Grand Lake Road, Sydney, NS B1P 6L2, Canada (F.H.); (K.P.); (B.S.A.); (A.P.); (N.K.M.); (R.K.); (A.J.B.)
| | - Fatima Halilu
- Department of Chemistry, School of Science and Technology, Cape Breton University, 1250 Grand Lake Road, Sydney, NS B1P 6L2, Canada (F.H.); (K.P.); (B.S.A.); (A.P.); (N.K.M.); (R.K.); (A.J.B.)
| | - Kavya Pilavangan
- Department of Chemistry, School of Science and Technology, Cape Breton University, 1250 Grand Lake Road, Sydney, NS B1P 6L2, Canada (F.H.); (K.P.); (B.S.A.); (A.P.); (N.K.M.); (R.K.); (A.J.B.)
| | - Ben Sabu Abraham
- Department of Chemistry, School of Science and Technology, Cape Breton University, 1250 Grand Lake Road, Sydney, NS B1P 6L2, Canada (F.H.); (K.P.); (B.S.A.); (A.P.); (N.K.M.); (R.K.); (A.J.B.)
- Engineering Co-op Intern, Dalhousie University, 1334 Barrington Street, P.O. Box 15000, Halifax, NS B3H 4R2, Canada
| | - Ava Prosser
- Department of Chemistry, School of Science and Technology, Cape Breton University, 1250 Grand Lake Road, Sydney, NS B1P 6L2, Canada (F.H.); (K.P.); (B.S.A.); (A.P.); (N.K.M.); (R.K.); (A.J.B.)
| | - Nikaran Kanchanadevi Marimuthu
- Department of Chemistry, School of Science and Technology, Cape Breton University, 1250 Grand Lake Road, Sydney, NS B1P 6L2, Canada (F.H.); (K.P.); (B.S.A.); (A.P.); (N.K.M.); (R.K.); (A.J.B.)
- MITACS Globalink Intern, Department of Mechanical Engineering, Coimbatore Institute of Technology, Coimbatore 14, Tamil Nadu 641 014, India
| | - Rajendran Kaliaperumal
- Department of Chemistry, School of Science and Technology, Cape Breton University, 1250 Grand Lake Road, Sydney, NS B1P 6L2, Canada (F.H.); (K.P.); (B.S.A.); (A.P.); (N.K.M.); (R.K.); (A.J.B.)
| | - Allen J. Britten
- Department of Chemistry, School of Science and Technology, Cape Breton University, 1250 Grand Lake Road, Sydney, NS B1P 6L2, Canada (F.H.); (K.P.); (B.S.A.); (A.P.); (N.K.M.); (R.K.); (A.J.B.)
| | - Martin Mkandawire
- Department of Chemistry, School of Science and Technology, Cape Breton University, 1250 Grand Lake Road, Sydney, NS B1P 6L2, Canada (F.H.); (K.P.); (B.S.A.); (A.P.); (N.K.M.); (R.K.); (A.J.B.)
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Kida M, Pochwat K, Ziembowicz S, Pizzo H. The use of artificial neural networks in modelling migration pollutants from the degradation of microplastics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166856. [PMID: 37683848 DOI: 10.1016/j.scitotenv.2023.166856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/24/2023] [Accepted: 09/03/2023] [Indexed: 09/10/2023]
Abstract
The objective of this article was to assess the effectiveness of simulation models in predicting the emission of additives from microplastics. The variety of plastics, their chemical structure, physicochemical properties, as well as the influence of environmental factors on their decomposition generate countless cases for analysis in the laboratory. The search for methods to reduce unnecessary laboratory analyses is a necessary action to protect the environment and ensure economic efficiency. In this study, machine learning techniques, specifically the methodology of artificial neural networks (ANNs), were employed to predict the leaching of contaminants from microplastics. The network's development was based on laboratory test results obtained using gas chromatography coupled to a mass spectrometer (GC-MS). The conducted research revealed the significant utility of the multilayer perceptron (MLP) - type networks, which exhibited correlation levels exceeding 95 % for various predicted values. One comprehensive ANN was developed, encompassing all the parameters analyzed, alongside individual networks for each parameter. A common network for all factors enabled for satisfactory results. Temperature and holding time had the greatest influence on the values of parameters such as the electrolytic conductivity of water (EC), dissolved organic carbon (DOC), and di(2-ethylhexyl) phthalate (DEHP). Correlation results ranged from 0.94 to 0.99 for EC, DEHP and DOC between the model data and laboratory data in each set of training, test, and validation data. The conducted research demonstrated that ANNs are a valuable machine learning method for analyzing and predicting pollutant emissions during the decomposition of microplastics.
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Affiliation(s)
- Małgorzata Kida
- Department of Chemistry and Environmental Engineering, Faculty of Civil and Environmental Engineering and Architecture Rzeszow University of Technology, 35-959 Rzeszów, Ave Powstańców Warszawy 6, Poland.
| | - Kamil Pochwat
- Department of Infrastructure and Water Management, Faculty of Civil and Environmental Engineering and Architecture Rzeszow University of Technology, 35-959 Rzeszów, Ave Powstańców Warszawy 6, Poland
| | - Sabina Ziembowicz
- Department of Chemistry and Environmental Engineering, Faculty of Civil and Environmental Engineering and Architecture Rzeszow University of Technology, 35-959 Rzeszów, Ave Powstańców Warszawy 6, Poland
| | - Henrique Pizzo
- Municipal Water and Sewage Company, Monsenhor Gustavo Freire St., 75, Juiz de Fora 36016-470, Brazil; College of Civil Engineering, Estácio University of Juiz de Fora, Pres. João Goulart Av., 600, Minas Gerais, Brazil
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Devi D, Gupta KK, Chandra H, Sharma KK, Sagar K, Mori E, de Farias PAM, Coutinho HDM, Mishra AP. Biodegradation of low-density polyethylene (LDPE) through application of indigenous strain Alcaligenes faecalis ISJ128. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:9391-9409. [PMID: 37184721 DOI: 10.1007/s10653-023-01590-z] [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: 04/04/2022] [Accepted: 04/18/2023] [Indexed: 05/16/2023]
Abstract
The resiliency of plastic products against microbial degradation in natural environment often creates devastating changes for humans, plants, and animals on the earth's surface. Biodegradation of plastics using indigenous bacteria may serve as a critical approach to overcome this resulting environmental stress. In the present work, a polyethylene degrading bacterium Alcaligenes faecalis strain ISJ128 (Accession No. MK968769) was isolated from partially degraded polyethylene film buried in the soil at plastic waste disposal site. The biodegradation studies were conducted by employing various methods such as hydrophobicity assessment of the strain ISJ128, measurement of viability and total protein content of bacterial biofilm attached to the polyethylene surface. The proliferation of bacterial cells on polyethylene film, as indicated by high growth response in terms of protein content (85.50 µg mL-1) and viability (1010 CFU mL-1), proposed reasonable suitability of our strain A. faecalis ISJ128 toward polyethylene degradation. The results of biodegradation assay revealed significant degradation (10.40%) of polyethylene film within a short period of time (i.e., 60 days), whereas no signs of degradation were seen in control PE film. A. faecalis strain ISJ128 also demonstrated a removal rate of 0.0018 day-1 along with half-life of 462 days. The scanning electron microscope (SEM) and Fourier transform infrared (FTIR) spectroscopy studies not only displayed changes on polyethylene surface but also altered level of intensity of functional groups and an increase in the carbonyl indexes justifying the degradation of polyethylene film due to bacterial activity. In addition, the secondary structure prediction (M fold software) of 16SrDNA proved the stable nature of the bacterial strain, thereby reflecting the profound scope of A. faecalis strain ISJ128 as a potential degrader for the eco-friendly disposal of polyethylene waste. Schematic representation of methodology.
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Affiliation(s)
- Deepa Devi
- Department of Botany and Microbiology, Gurukula Kangri (Deemed to be University), Haridwar, Uttarakhand, 249404, India
| | - Kartikey Kumar Gupta
- Department of Botany and Microbiology, Gurukula Kangri (Deemed to be University), Haridwar, Uttarakhand, 249404, India.
| | - Harish Chandra
- Department of Botany and Microbiology, Gurukula Kangri (Deemed to be University), Haridwar, Uttarakhand, 249404, India
| | - Kamal Kant Sharma
- Department of Botany and Microbiology, Gurukula Kangri (Deemed to be University), Haridwar, Uttarakhand, 249404, India
| | - Kalpana Sagar
- Department of Botany and Microbiology, Gurukula Kangri (Deemed to be University), Haridwar, Uttarakhand, 249404, India
| | - Edna Mori
- CECAPE College, Av. Padre Cícero, 3917 - São José, Juazeiro do Norte, CE, 63024-015, Brazil
| | | | - Henrique Douglas Melo Coutinho
- Department of Chemical Biology, Regional University of Cariri - URCA, Av. Cel Antonio Luiz, 1161, Pimenta, Crato, CE, 63105-000, Brazil.
| | - Abhay Prakash Mishra
- Department of Pharmacology, University of Free State, Bloemfontein, 9300, Free State, South Africa.
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Jiang W, Sun J, Dong W, Zhou J, Jiang Y, Zhang W, Xin F, Jiang M. Characterization of a novel esterase and construction of a Rhodococcus-Burkholderia consortium capable of catabolism bis (2-hydroxyethyl) terephthalate. ENVIRONMENTAL RESEARCH 2023; 238:117240. [PMID: 37783328 DOI: 10.1016/j.envres.2023.117240] [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: 08/11/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/04/2023]
Abstract
Bis (2-hydroxyethyl) terephthalate (BHET) is one of the main compounds produced by enzymatic hydrolysis or chemical depolymerization of polyethylene terephthalate (PET). However, the lack of understanding on BHET microbial metabolism is a main factor limiting the bio-upcycling of PET. In this study, BHET-degrading strains of Rhodococcus biphenylivorans GA1 and Burkholderia sp. EG1 were isolated and identified, which can grow with BHET as the sole carbon source. Furthermore, a novel esterase gene betH was cloned from strain GA1, which encodes a BHET hydrolyzing esterase with the highest activity at 30 °C and pH 7.0. In addition, the co-culture containing strain GA1 and strain EG1 could completely degrade high concentration of BHET, eliminating the inhibition on strain GA1 caused by the accumulation of intermediate metabolite ethylene glycol (EG). This work will provide potential strains and a feasible strategy for PET bio-upcycling.
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Affiliation(s)
- Wankui Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, PR China
| | - Jingxiang Sun
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, PR China
| | - Weiliang Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, PR China
| | - Jie Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, PR China
| | - Yujia Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, PR China
| | - Wenming Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing, 211816, PR China.
| | - Fengxue Xin
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing, 211816, PR China.
| | - Min Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing, 211816, PR China
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Başaran Kankılıç G, Koraltan İ, Erkmen B, Çağan AS, Çırak T, Özen M, Seyfe M, Altındağ A, Tavşanoğlu ÜN. Size-selective microplastic uptake by freshwater organisms: Fish, mussel, and zooplankton. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 336:122445. [PMID: 37633431 DOI: 10.1016/j.envpol.2023.122445] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/11/2023] [Accepted: 08/22/2023] [Indexed: 08/28/2023]
Abstract
Microplastics, as an emergent pollutant, have garnered substantial attention within aquatic environments, yet a significant knowledge gap persists regarding the interplay of organism size and pollution impacts on microplastic uptake in freshwater ecosystems. The main aim of the current study is to assess the microplastic ingestion by aquatic organisms across diverse trophic levels. To achieve this objective, zooplankton, mussels (Anodonta anatina), and fish (Carassius gibelio) were collected from the highly polluted Susurluk River Basin in Türkiye. The size distribution encompassed 160.8 ± 56.9 μm for the prevailing zooplankton, 6.9 ± 2.2 cm for mussel, and 20.4 ± 3.1 cm for fish, respectively. While no microplastic ingestion was observed among zooplankton, the finding highlights the influence of body-size and pollution on microplastic ingestion. In contrast, A. anatina and C. gibelio contained 617 and 792 microplastic particles, respectively. Predominantly, fibers emerged as the most prevalent microplastic type across trophic levels (except zooplankton) followed by films. Notably, only fish exhibited fragments within their gastrointestinal tract. A substantial correlation emerged between microplastic abundance and mussel size and weight, but no such correlation manifested for fish. The study also revealed a positive link between microplastic count and turbidity (phosphate and high Chl a level), impacting mussel ingestion capacity due to the variability in the food availability and potential shifts in feeding preferences. Conversely, no distinct pattern emerged for fish concerning water quality parameters and ingested microplastics. Consequently, our study underscores diverse microplastic uptake patterns in freshwater ecosystems, with a predominant frequency of microplastics falling with the 0.3 mm-3.0 mm range, emphasizing the significance of size-selective uptake by organisms.
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Affiliation(s)
| | - İdris Koraltan
- Akdeniz University, Institute of Natural and Applied Sciences, Antalya, Türkiye
| | - Belda Erkmen
- Aksaray University, Faculty of Sciences, Biology Department, Ankara, Türkiye
| | - Ali Serhan Çağan
- Kastamonu University, Araç Rafet Vergili Vocational School, Wildlife Programme, Kastamonu, Türkiye; Çankırı Karatekin University, Faculty of Sciences, Biology Department, Çankırı, Türkiye
| | - Tamer Çırak
- Aksaray Technical Sciences Vocational School, Alternative Energy Sources Technology Program, Aksaray University, Aksaray, Türkiye
| | - Mihriban Özen
- Çankırı Karatekin University, Faculty of Sciences, Biology Department, Çankırı, Türkiye
| | - Melike Seyfe
- Çankırı Karatekin University, Faculty of Sciences, Biology Department, Çankırı, Türkiye
| | - Ahmet Altındağ
- Ankara University, Faculty of Sciences, Biology Department, Ankara, Türkiye
| | - Ülkü Nihan Tavşanoğlu
- Çankırı Karatekin University, Faculty of Sciences, Biology Department, Çankırı, Türkiye.
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Seyyedi SR, Kowsari E, Ramakrishna S, Gheibi M, Chinnappan A. Marine plastics, circular economy, and artificial intelligence: A comprehensive review of challenges, solutions, and policies. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 345:118591. [PMID: 37423188 DOI: 10.1016/j.jenvman.2023.118591] [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: 12/14/2022] [Revised: 06/09/2023] [Accepted: 07/03/2023] [Indexed: 07/11/2023]
Abstract
Global plastic production is rapidly increasing, resulting in significant amounts of plastic entering the marine environment. This makes marine litter one of the most critical environmental concerns. Determining the effects of this waste on marine animals, particularly endangered organisms, and the health of the oceans is now one of the top environmental priorities. This article reviews the sources of plastic production, its entry into the oceans and the food chain, the potential threat to aquatic animals and humans, the challenges of plastic waste in the oceans, the existing laws and regulations in this field, and strategies. Using conceptual models, this study looks at a circular economy framework for energy recovery from ocean plastic wastes. It does this by drawing on debates about AI-based systems for smart management. In the last sections of the present research, a novel soft sensor is designed for the prediction of accumulated ocean plastic waste based on social development features and the application of machine learning computations. Plus, the best scenario of ocean plastic waste management with a concentration on both energy consumption and greenhouse gas emissions is discussed using USEPA-WARM modeling. Finally, a circular economy concept and ocean plastic waste management policies are modeled based on the strategies of different countries. We deal with green chemistry and the replacement of plastics derived from fossil sources.
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Affiliation(s)
- Seyed Reza Seyyedi
- Department of Chemistry, Amirkabir University of Technology (Tehran Polytechnic), Hafez St., Tehran 15875-4413, Iran
| | - Elaheh Kowsari
- Department of Chemistry, Amirkabir University of Technology (Tehran Polytechnic), Hafez St., Tehran 15875-4413, Iran.
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, Center for Nanofibers and Nanotechnology, National University of Singapore, 119260, Singapore.
| | - Mohammad Gheibi
- Department of Civil Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Amutha Chinnappan
- Department of Mechanical Engineering, Center for Nanofibers and Nanotechnology, National University of Singapore, 119260, Singapore
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Geng X, Boufadel MC, Lopez EP. Modeling impacts of river hydrodynamics on fate and transport of microplastics in riverine environments. MARINE POLLUTION BULLETIN 2023; 196:115602. [PMID: 37806015 DOI: 10.1016/j.marpolbul.2023.115602] [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: 07/26/2023] [Revised: 09/23/2023] [Accepted: 09/26/2023] [Indexed: 10/10/2023]
Abstract
Microplastics pose a significant and growing threat to marine ecosystems and human health. Rivers serve as critical pathways for the entry of inland-produced microplastics into marine environments. In this paper, we developed a numerical modeling scheme using OpenFOAM to investigate the fate and transport of microplastics in a river system. Our simulation results show that microplastics undergo significant aggregation and breakage as they are transported downstream by river flows. This significantly alters the particle size distribution of microplastics. The aggregation-breakage process is mainly controlled by river hydrodynamics and pollution scale. Our findings suggest that a significant extent of particle aggregation occurs at an early stage of the release of microplastics in the river, while the aggregation-breakage process becomes limited as the microplastic plume is gradually dispersed and diluted downstream. Eddy diffusivity drives the dispersion of the microplastic plume in the river, and its spatial patterns affect the aggregation-breakage process.
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Affiliation(s)
- Xiaolong Geng
- Department of Earth Sciences, University of Hawai'i at Mānoa, Honolulu, HI 96822, USA; Water Resources Research Center, University of Hawai'i at Mānoa, Honolulu, HI 96822, USA
| | - Michel C Boufadel
- Department of Civil and Environmental Engineering, New Jersey Institute of Technology, University Heights, Newark, NJ 07102, USA.
| | - Edward P Lopez
- Department of Earth Sciences, University of Hawai'i at Mānoa, Honolulu, HI 96822, USA
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Aragaw TA. Sustainable management of drinking plastic straws is required to reduce plastic pollution: Are we using them more during COVID-19? JOURNAL OF HAZARDOUS MATERIALS ADVANCES 2023; 12:100328. [PMID: 37324518 PMCID: PMC10234838 DOI: 10.1016/j.hazadv.2023.100328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/29/2023] [Accepted: 06/01/2023] [Indexed: 06/17/2023]
Abstract
Nowadays, single-use plastic pollution attracts the attention of scholars, policymakers, and practitioners. In addition to personal protective equipment (PPEs) waste during the COVID-19 pandemic, other unpreceded plastic wastes such as packaging from online shopping and food delivery, viruses confirmatory testing, and drinking straws also contributed to pollution and worsened around the globe. This perspective aimed to provide insights into drinking plastic straws as an important source of plastic pollution. Literature searches confirmed that drinking plastic straws, unlike PPEs, have not been researched whether it is an important contributor to pollution or not during the COVID-19 pandemic. Thus, research on the pollution level of this plastic waste and its association with COVID-19 is required. Drinking straw producers and users require adequate strategies and management of this plastic pollution and more widespread rules and regulations to prevent environmental implications and health risks. This study can usefully give highlights for environmentalists, solid waste management experts, policymakers, and governments by describing the environmental impact and raising health risks of drinking plastic straw pollution.
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Affiliation(s)
- Tadele Assefa Aragaw
- Faculty of Chemical and Food Engineering, Bahir Dar Institute of Technology, Bahir Dar University, Ethiopia
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40
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Cruz RMS, Albertos I, Romero J, Agriopoulou S, Varzakas T. Innovations in Food Packaging for a Sustainable and Circular Economy. ADVANCES IN FOOD AND NUTRITION RESEARCH 2023; 108:135-177. [PMID: 38460998 DOI: 10.1016/bs.afnr.2023.10.003] [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: 03/11/2024]
Abstract
Packaging is fundamental to maintaining the quality of food, but its contribution with a negative footprint to the environment must be completely changed worldwide to reduce pollution and climate change. Innovative and sustainable packaging and new strategies of reutilization are necessary to reduce plastic waste accumulation, maintain food quality and safety, and reduce food losses and waste. The purpose of this chapter is to present innovations in food packaging for a sustainable and circular economy. First, to present the eco-design packaging approach as well as new strategies for recycled or recyclable materials in food packaging. Second, to show current trends in new packaging materials developed from the use of agro-industrial wastes as well as new methods of production, including 3D/4D printing, electrostatic spinning, and the use of nanomaterials.
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Affiliation(s)
- Rui M S Cruz
- Department of Food Engineering, Institute of Engineering, Universidade do Algarve, Campus da Penha, Faro, Portugal; MED-Mediterranean Institute for Agriculture, Environment and Development and CHANGE-Global Change and Sustainability Institute, Faculty of Sciences and Technology, Campus de Gambelas, Universidade do Algarve, Faro, Portugal.
| | - Irene Albertos
- Nursing Department, Nursing Faculty, University of Valladolid, Valladolid, Spain
| | - Janira Romero
- Faculty of Sciences and Art, Universidad Católica de Ávila (UCAV), Calle Canteros s/n, Ávila, Spain
| | - Sofia Agriopoulou
- Department of Food Science and Technology, University of Peloponnese, Tripoli, Greece
| | - Theodoros Varzakas
- Department of Food Science and Technology, University of Peloponnese, Tripoli, Greece
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Elsamahy T, Al-Tohamy R, Abdelkarim EA, Zhu D, El-Sheekh M, Sun J, Ali SS. Strategies for efficient management of microplastics to achieve life cycle assessment and circular economy. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1361. [PMID: 37870605 DOI: 10.1007/s10661-023-11955-7] [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: 06/01/2023] [Accepted: 10/05/2023] [Indexed: 10/24/2023]
Abstract
The anticipated increase in the influx of plastic waste into aquatic environments has propelled the identification and elimination of plastic waste into the global agenda. The plastics sector generates a significant volume of materials, which, due to their extended durability, accumulate rapidly in natural ecosystems. Consequently, this indiscriminate utilization, along with the deposition of plastic waste (PW) in landfills and inadequate recycling practices, leads to diverse economic, social, and environmental consequences. Microplastics (MPs) are a type of PW that has been fragmented into particles measuring less than 5 mm. These particles have been found in several environments, including the air, soil, freshwater, and ocean ecosystems, where they accumulate in large quantities. In order to gain insight into the ecological risks and resource implications associated with a plastic product, it is strongly advised to conduct life cycle and sustainability analyses. Therefore, this paper examines various strategies aimed at achieving effective management of MP waste in order to develop a conceptual framework for MPs in circular economy and life cycle assessment (LCA). The findings of this study provides a new avenue for future research and contribution to manage MP waste as well as reduce their environmentally hazardous impact.
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Affiliation(s)
- Tamer Elsamahy
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Rania Al-Tohamy
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Esraa A Abdelkarim
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Daochen Zhu
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Mostafa El-Sheekh
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Jianzhong Sun
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Sameh S Ali
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China.
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
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Barreto A, Santos J, Andrade G, Santos M, Maria VL. New Insights into Nanoplastics Ecotoxicology: Effects of Long-Term Polystyrene Nanoparticles Exposure on Folsomia candida. TOXICS 2023; 11:876. [PMID: 37888726 PMCID: PMC10610651 DOI: 10.3390/toxics11100876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/16/2023] [Accepted: 10/20/2023] [Indexed: 10/28/2023]
Abstract
Despite the growing concern over nanoplastics' (NPls) environmental impacts, their long-term effects on terrestrial organisms remain poorly understood. The main aim of this study was to assess how NPls exposure impacts both the parental (F1) and subsequent generations (F2 and F3) of the soil-dwelling species Folsomia candida. After a standard exposure (28 days), we conducted a multigenerational study along three generations (84 days), applying polystyrene nanoparticles (PS NPs; diameter of 44 nm) as representatives of NPls. Endpoints from biochemical to individual levels were assessed. The standard test: PS NPs (0.015 to 900 mg/kg) had no effect in F. candida survival or reproduction. The multigenerational test: PS NPs (1.5 and 300 mg/kg) induced no effects on F. candida survival and reproduction along the three generations (F1 to F3). PS NPs induced no effects in catalase, glutathione reductase, glutathione S-transferases, and acetylcholinesterase activities for the juveniles of the F1 to F3. Oxidative damage through lipid peroxidation was detected in the offspring of F1 but not in the juveniles of F2 and F3. Our findings underscore the importance of evaluating multigenerational effects to gain comprehensive insights into the contaminants long-term impact, particularly when organisms are continuously exposed, as is the case with NPls.
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Affiliation(s)
- Angela Barreto
- Department of Biology & Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Campus of Santiago, 3810-193 Aveiro, Portugal
| | - Joana Santos
- Department of Biology & Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Campus of Santiago, 3810-193 Aveiro, Portugal
| | - Gonçalo Andrade
- Department of Biology & Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Campus of Santiago, 3810-193 Aveiro, Portugal
| | - Matilde Santos
- Department of Biology & Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Campus of Santiago, 3810-193 Aveiro, Portugal
| | - Vera L Maria
- Department of Biology & Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Campus of Santiago, 3810-193 Aveiro, Portugal
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43
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Li C, Aziz F, Asim S, Shahzad A, Khan A. Employee green behavior: a study on the impact of corporate social responsibility (CSR) on employee green behavior, green culture: the moderating role of green innovation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:105489-105503. [PMID: 37715915 DOI: 10.1007/s11356-023-29798-7] [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: 05/22/2023] [Accepted: 09/05/2023] [Indexed: 09/18/2023]
Abstract
This study adopts the natural resource-based view (NRBV) of the firm to investigate the relationships between corporate social responsibility (CSR), employees' green behavior (EGB), green culture, environmental performance (EP), and green innovation (GI) in China's automobile manufacturing industry. A survey of 465 employees was conducted. The data were analyzed using partial least squares structural equation modeling. The results showed that CSR positively influences EGB and GC, which in turn improves EP. CSR also directly impacts EP. Furthermore, GI enhances the positive effect of CSR on EP through the mediators EGB and GC. The findings contribute to the literature by elucidating the mechanisms linking CSR and EP. They provide an integrated framework incorporating direct, mediated, and moderated effects. For practice, the study highlights the importance of CSR, EGB, and GC for manufacturers aiming to improve environmental sustainability. It suggests managers should promote green values, foster eco-innovation, and encourage employees' discretionary green actions. The moderating effect of GI implies embedding sustainability in corporate culture and operations to magnify the gains from CSR. Overall, the research offers insights into translating green strategic intent into performance outcomes through cultural and behavioral transformation.
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Affiliation(s)
- Cai Li
- School of Management Science, Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China
| | - Fazeelat Aziz
- School of Management Science, Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China.
| | - Shoaib Asim
- School of Business Administration, NFC & IET University, Multan, Pakistan
| | - Asim Shahzad
- School of Management Science, Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China
| | - Asad Khan
- School of Management Science, Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China
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Amariei G, Lahn Henriksen M, Klarskov P, Hinge M. In-line quantitative estimation of ammonium polyphosphate flame retardant in polyolefins via industrial hyperspectral imaging system and machine learning. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 170:1-7. [PMID: 37531740 DOI: 10.1016/j.wasman.2023.07.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 07/04/2023] [Accepted: 07/23/2023] [Indexed: 08/04/2023]
Abstract
Due to developments in European legislation, several halogenated flame retardants are banned due to their toxicity, and the use of phosphor-based flame retardants in plastics is increasing. A revision of ammonium polyphosphate (APP) flame retardant revealed that it is an eye irritant and toxic, thus posing a health issue. Hence APP identification is needed for enabling safe recycling of plastic waste streams. Herein an industrial in-line method for quantitative estimation of APP in low density polyethylene (LDPE) and polypropylene (PP) is demonstrated, by using an industrial hyperspectral imaging system (955 to 1700 nm) and principal component analysis (PCA). Spectra of plastic samples with varying concentrations of APP were applied to build and calibrate a quantitative determination method. PCA and band area ratios (of selected bands) were made and fitted with continuous functions for concentration determination. The plastic samples were characterised by elemental analysis, attenuated total reflection, differential scanning calorimetry, and thermogravimetric analysis. The PCA model outperforms the band area ratio model and predicts APP concentrations between 24.3 and 1.5 wt% in LDPE (R2 = 0.98) and 20.0 and 1.7 wt% in PP (R2 = 0.97). Unknown samples with APP ranging from 23.7 to 2.7 wt% in LDPE and from 18.6 to 2.3 wt% in PP were predicted and correlated to the actual concentrations. The proposed approach is valuable for the plastic recyclers and waste management industries where inline concentration determination of flame retardants is key.
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Affiliation(s)
- Georgiana Amariei
- Plastic and Polymer Engineering, Department of Biological and Chemical Engineering, Aarhus University, Aabogade 40, DK-8200 Aarhus N., Denmark
| | - Martin Lahn Henriksen
- Plastic and Polymer Engineering, Department of Biological and Chemical Engineering, Aarhus University, Aabogade 40, DK-8200 Aarhus N., Denmark
| | - Pernille Klarskov
- Terahertz Photonics, Department of Electrical and Computer Engineering, Aarhus University, Finlandsgade 22, DK-8200 Aarhus N, Denmark
| | - Mogens Hinge
- Plastic and Polymer Engineering, Department of Biological and Chemical Engineering, Aarhus University, Aabogade 40, DK-8200 Aarhus N., Denmark.
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Sharma N, Vuppu S. In Silico Study of Enzymatic Degradation of Bioplastic by Microalgae: An Outlook on Microplastic Environmental Impact Assessment, Challenges, and Opportunities. Mol Biotechnol 2023:10.1007/s12033-023-00886-w. [PMID: 37758971 DOI: 10.1007/s12033-023-00886-w] [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: 04/27/2023] [Accepted: 08/22/2023] [Indexed: 09/29/2023]
Abstract
Microplastics are tiny pieces of non-biodegradable plastic that can take thousands of years to break down. As microplastics degrade, they release harmful compounds into the environment, which can be found in the surroundings. The microplastics found in the environment are hard to detect and remove because of their small particle sizes. Microplastics cannot decompose naturally, so they accumulate in the environment and cause pollution. As a result, bioplastics can be produced from a vast array of substrates, including biopolymers, citrus peels, leather, and feather wastes. Blue-green microalgae namely Arthrospira platensis (spirulina) contains enzymes such as laccase and catalase which can be responsible for the degradation of bioplastics. In our study, we performed molecular docking to identify the binding affinities of different enzymes such as laccase and catalase with different substrates, focusing on determining the most suitable substrate for enhancing enzyme activity for degradation of bioplastics. The analysis revealed that veratryl alcohol is the most suitable substrate for laccase, whereas lignin is the more preferred substrate for catalase with the highest binding affinity score of - 5.9 and - 8.1 kcal/mol. Moreover, degradation, challenges, opportunities, and applications of bioplastics in numerous domains such as cosmetics, electronics, agriculture, medical, textiles, and food industries have also been highlighted.
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Affiliation(s)
- Nikita Sharma
- Department of Biotechnology, School of Bioscience and Technology, Vellore Institute of Technology, Tamil Nadu, Vellore, 632014, India
| | - Suneetha Vuppu
- Department of Biotechnology, School of Bioscience and Technology, Vellore Institute of Technology, Tamil Nadu, Vellore, 632014, India.
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Tomić A, Šovljanski O, Erceg T. Insight on Incorporation of Essential Oils as Antimicrobial Substances in Biopolymer-Based Active Packaging. Antibiotics (Basel) 2023; 12:1473. [PMID: 37760769 PMCID: PMC10525543 DOI: 10.3390/antibiotics12091473] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/18/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023] Open
Abstract
The increasing interest in microbiological food safety requires the development of sensitive and reliable analyses and technologies for preserving food products' freshness and quality. Different types of packaging systems are one of the solutions for controlling microbiological activity in foods. During the last decades, the development of biopolymer-based active packaging with essential oil incorporation systems has resulted in technologies with exceptional application potential, primarily in the food industry. There is no doubt that this principle can facilitate food status monitoring, reduce food waste, extend the shelf life, improve the overall quality of food, or indicate a larger problem during the storage, production, and distribution of foodstuffs. On the other hand, most antimicrobial packaging systems are in the development phase, while the sensitivity, selectivity, complexity, and, above all, safety of these materials are just some of the essential questions that need to be answered before they can be widely used. The incorporation of essential oils as antimicrobial substances in biopolymer-based active packaging holds significant promise for enhancing food safety, extending shelf life, and offering more sustainable packaging solutions. While challenges exist, ongoing research and innovation in this field are likely to lead to the development of effective and environmentally friendly packaging systems with enhanced antimicrobial properties.
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Affiliation(s)
| | - Olja Šovljanski
- Faculty of Technology Novi Sad, University of Novi Sad, Bulevar Cara Lazara 1, 21 000 Novi Sad, Serbia; (A.T.); (T.E.)
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Neef NE, Fußwinkel S, Roos C, Frank L, Shihepo K, Richter I. Optimistic narrative future visions: a communication tool for promoting sustainable (plastic) behavior. Front Psychol 2023; 14:1252895. [PMID: 37790233 PMCID: PMC10543889 DOI: 10.3389/fpsyg.2023.1252895] [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: 07/04/2023] [Accepted: 09/04/2023] [Indexed: 10/05/2023] Open
Abstract
Plastic pollution is a pressing global issue, necessitating a focus on consumer behavior to curb this problem at its source. To effectively promote sustainable practices, communication strategies that employ future visions have gained attention. This study examines the effects of a narrative video intervention depicting an optimistic future vision concerning single-use plastic bag consumption in South Africa, compared to a representation of the prevailing status quo. Using a preregistered within-subject design, we assess the psychological and emotional responses to two scenarios of which one is illustrating adaptive behaviors toward reduced plastic bag usage, and the other showcasing current consumption patterns. Parametric analyses revealed a shift in emotional states, characterized by a greater experience of positive emotions and a reduced experience of negative emotions following the exposure to the optimistic future scenario video, as compared to the status quo video. Moreover, engagement with the optimistic future scenario was associated with higher levels of perceived behavioral control and behavioral intentions. No significant changes were found regarding sense of responsibility. These findings point to the potential of optimistic future visions to influence individuals at psychological and emotional levels. This renders optimistic future vision communication as an effective tool for sustainable behavior change, particularly in relation to the sustainable use of plastic shopping bags.
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Affiliation(s)
- Nicolas E. Neef
- Department of Sustainable Development and Change, Institute of Education, Work, and Society, University of Hohenheim, Stuttgart, Germany
| | - Selina Fußwinkel
- Department of Psychology, Norwegian University of Science and Technology, Trondheim, Norway
| | - Claudine Roos
- School for Geo- and Spatial Sciences, North-West University, Potchefstroom, South Africa
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - Lilli Frank
- Department of Sustainable Development and Change, Institute of Education, Work, and Society, University of Hohenheim, Stuttgart, Germany
| | - Kapandu Shihepo
- School for Geo- and Spatial Sciences, North-West University, Potchefstroom, South Africa
| | - Isabell Richter
- Department of Psychology, Norwegian University of Science and Technology, Trondheim, Norway
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Blesa Marco ZE, Sáez JA, Pedraza Torres AM, Martínez Sabater E, Orden L, Andreu-Rodríguez FJ, Bustamante MA, Marhuenda-Egea FC, López MJ, Suárez-Estrella F, Moral R. Effect of agricultural microplastic and mesoplastic in the vermicomposting process: Response of Eisenia fetida and quality of the vermicomposts obtained. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 333:122027. [PMID: 37364751 DOI: 10.1016/j.envpol.2023.122027] [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: 03/13/2023] [Revised: 06/09/2023] [Accepted: 06/10/2023] [Indexed: 06/28/2023]
Abstract
This work evaluates the effect of agricultural plastic waste (APW) in two particle sizes, microplastic and film debris, and subjected to a pre-treatment by exposure to UV-C, in the development of the vermicomposting process. Eisenia fetida health status and metabolic response and the vermicompost quality and enzymatic activity were determined. The environmental significant of this study is mainly related to how can affect plastic presence (depending on plastic type, size and/or if it is partially degraded) not only to this biological process of organic waste degradation, but also to the vermicompost characteristics, since these organic materials will be reintroduced in the environment as organic amendments and/or fertilizers in agriculture. The plastic presence induced a significant negative effect in survival and body weight of E. fetida with an average decrease of 10% and 15%, respectively, and differences on the characteristics of the vermicomposts obtained, mainly related with NPK content. Although the plastic proportion tested (1.25% f. w.) did not induce acute toxicity in worms, effects of oxidative stress were found. Thus, the exposure of E. fetida to AWP with smaller size or pre-treated with UV seemed to induce a biochemical response, but the mechanism of oxidative stress response did not seem to be dependent on the size or shape of plastic fragments or pre-treated plastic.
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Affiliation(s)
- Z E Blesa Marco
- Centro de Investigación e Innovación Agroalimentaria y Agroambiental (CIAGRO-UMH), Universidad Miguel Hernández, Ctra. de Beniel Km 3,2, Orihuela, Alicante, 03312, Spain
| | - J A Sáez
- Centro de Investigación e Innovación Agroalimentaria y Agroambiental (CIAGRO-UMH), Universidad Miguel Hernández, Ctra. de Beniel Km 3,2, Orihuela, Alicante, 03312, Spain
| | - A M Pedraza Torres
- Laboratorio Ecotoxicologia, Instituto de Ciencias Ambientales (ICAM); Universidad de Castilla La Mancha, Avda. Carlos III, 45071, Toledo, Spain
| | - E Martínez Sabater
- Centro de Investigación e Innovación Agroalimentaria y Agroambiental (CIAGRO-UMH), Universidad Miguel Hernández, Ctra. de Beniel Km 3,2, Orihuela, Alicante, 03312, Spain
| | - L Orden
- Centro de Investigación e Innovación Agroalimentaria y Agroambiental (CIAGRO-UMH), Universidad Miguel Hernández, Ctra. de Beniel Km 3,2, Orihuela, Alicante, 03312, Spain; Estación Experimental Agropecuaria INTA Ascasubi (EEA INTA Ascasubi), Ruta 3 Km 794, 8142, Hilario Ascasubi, Buenos Aires, Argentina
| | - F J Andreu-Rodríguez
- Centro de Investigación e Innovación Agroalimentaria y Agroambiental (CIAGRO-UMH), Universidad Miguel Hernández, Ctra. de Beniel Km 3,2, Orihuela, Alicante, 03312, Spain
| | - M A Bustamante
- Centro de Investigación e Innovación Agroalimentaria y Agroambiental (CIAGRO-UMH), Universidad Miguel Hernández, Ctra. de Beniel Km 3,2, Orihuela, Alicante, 03312, Spain.
| | - F C Marhuenda-Egea
- Department of Agrochemistry and Biochemistry, Multidisciplinary for Environmental Studies Ramón Margalef, San Vicent Del Raspeig, 03690, Alicante, Spain
| | - M J López
- Unit of Microbiology, Department of Biology and Geology, CITE II-B, Agrifood Campus of International Excel-lence CeiA3, CIAIMBITAL, University of Almeria, 04120 Almeria, Spain
| | - F Suárez-Estrella
- Unit of Microbiology, Department of Biology and Geology, CITE II-B, Agrifood Campus of International Excel-lence CeiA3, CIAIMBITAL, University of Almeria, 04120 Almeria, Spain
| | - R Moral
- Centro de Investigación e Innovación Agroalimentaria y Agroambiental (CIAGRO-UMH), Universidad Miguel Hernández, Ctra. de Beniel Km 3,2, Orihuela, Alicante, 03312, Spain
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Ziajahromi S, Lu HC, Drapper D, Hornbuckle A, Leusch FDL. Microplastics and Tire Wear Particles in Urban Stormwater: Abundance, Characteristics, and Potential Mitigation Strategies. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:12829-12837. [PMID: 37578171 DOI: 10.1021/acs.est.3c03949] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Stormwater has been identified as a pathway for microplastics (MPs), including tire wear particles (TWPs), into aquatic habitats. Our knowledge of the abundance of MPs in urban stormwater and potential strategies to control MPs in stormwater is still limited. In this study, stormwater samples were collected from microlitter capture devices (inlet and outlet) during rain events. Sediment samples were collected from the material captured in the device and from the inlet and outlet of a constructed stormwater wetland. MP (>25 μm) concentration in stormwater varied across different locations ranging from 3.8 to 59 MPs/L in raw and 1.8 to 32 MPs/L in treated stormwater, demonstrating a decrease after passage through the device (35-88% removal). TWPs comprised ∼95% of all particles, followed by polypropylene (PP) and poly(ethylene terephthalate) (PET). The concentration of TWPs ranged from 2.5 to 58 TWPs/L and 1450 to 4740 TWPs/kg in stormwater and sediment, respectively. A higher abundance of MPs was found in the sediment at the inlet of the constructed wetland compared to the outlet, indicating a potential role of wetlands in removing MPs from stormwater. These findings suggest that both constructed wetlands and microlitter capture devices can mitigate the transport of MPs from stormwater to the receiving waterways.
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Affiliation(s)
- Shima Ziajahromi
- Australian Rivers Institute, School of Environment and Science, Griffith University, Southport, Gold Coast 4222, QLD, Australia
| | - Hsuan-Cheng Lu
- Australian Rivers Institute, School of Environment and Science, Griffith University, Southport, Gold Coast 4222, QLD, Australia
| | - Darren Drapper
- Drapper Environmental Consultants, 4/54 Quilton Place, Crestmead 4132, QLD, Australia
| | - Andy Hornbuckle
- Atlan Stormwater (formerly SPEL Stormwater), 130 Sandstone PlaceParkinson 4115, QLD, Australia
| | - Frederic D L Leusch
- Australian Rivers Institute, School of Environment and Science, Griffith University, Southport, Gold Coast 4222, QLD, Australia
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50
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Chamanee G, Sewwandi M, Wijesekara H, Vithanage M. Global perspective on microplastics in landfill leachate; Occurrence, abundance, characteristics, and environmental impact. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 171:10-25. [PMID: 37634255 DOI: 10.1016/j.wasman.2023.08.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 07/31/2023] [Accepted: 08/11/2023] [Indexed: 08/29/2023]
Abstract
Plastic wastes deposited in landfills eventually break down and degrade into microplastics by physical, chemical, and biological forces. Though microplastics in leachate pose significant threats to the environment, the leachate generated from landfills has not received much attention as a possible source of environmental microplastics. A descriptive and systematic investigationof the global distribution of microplastics in landfill leachate does not exist to date. Therefore, this attempt is to provide a concise scientometric review of the studies on the presence of microplastics in landfill leachate. The present review revealed that the global trend in research on microplastics in leachate has increased exponentially after 2018 and China is the leading country. Different geographical regions have reported different microplastic abundances with the highest of 291.0 ± 91.0 items/L from a landfill in Shanghai. The use of novel sampling techniques to detect small microplastics (20-100 µm) has led to the high abundance of microplastics in landfill leachate in Shanghai. Due to its widespread usage, polyethylene is the most typically encountered polymer type in landfill leachate around the world. However, it is quite challengingto compare the results among studies due to the use of different size categories and extraction techniques. The removal of microplastics by the current leachate treatment facilities is still mostly unexplored, thus it is crucial to develop novel technologies to treat the microplastics in landfill leachate. Further investigations on the transport of microplastics in landfill leachate are urgently required to have a better understanding of potential human exposure and health implications.
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Affiliation(s)
- Gayathri Chamanee
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka; Department of Natural Resources, Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka, Belihuloya 70140, Sri Lanka
| | - Madushika Sewwandi
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka
| | - Hasintha Wijesekara
- Department of Natural Resources, Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka, Belihuloya 70140, Sri Lanka
| | - Meththika Vithanage
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka; Sustainability Cluster, School of Engineering, University of Petroleum & Energy Studies, Dehradun, Uttarakhand, 248007, India; Institute of Agriculture, University of Western Australia, Perth, WA 6009, Australia.
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