1
|
Brouziotis AA, Heise S, Saviano L, Zhang K, Giarra A, Bau M, Tommasi F, Guida M, Libralato G, Trifuoggi M. Levels of rare earth elements on three abandoned mining sites of bauxite in southern Italy: A comparison between TXRF and ICP-MS. Talanta 2024; 275:126093. [PMID: 38615453 DOI: 10.1016/j.talanta.2024.126093] [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: 02/09/2024] [Revised: 04/03/2024] [Accepted: 04/09/2024] [Indexed: 04/16/2024]
Abstract
The essential utilization of rare earth elements (REEs) for the production of several electronic devices is making the demand for them being increased all the time. This extensive use of these elements has also increased concern about human and environmental health. Previous studies have shown that REE levels are higher in environmental samples near mining sites, and they are highly possible to be transferred to biota. In this study, REE levels were determined in environmental samples collected from three abandoned mining sites of bauxite (Gargano, Otranto, and Spinazzola) in the region of Puglia, Southern Italy. The samples were digested and analyzed by two different techniques, Total X-Ray Fluorescence (TXRF) and Inductively Coupled Plasma - Mass Spectroscopy (ICP-MS) to investigate which technique is the most suitable for analysis of the REE content in samples from abandoned mining sites of bauxite. Only 6 REEs could be detected by TXRF, while all REEs were detected in all the samples by ICP-MS. Spinazzola is the richest site and Ce the most abundant REE in all three regions. REE levels are correlated between the soil and biota samples in many cases, although the calculation of the bioconcentration factor showed that REEs are not bioaccumulative. ICP-MS seems to be a more suitable technique for analysis of the whole REE content in environmental samples from abandoned mining sites of bauxite.
Collapse
Affiliation(s)
- Antonios Apostolos Brouziotis
- University of Naples Federico II, Department of Biology, Via Vicinale Cupa Cintia 26, 80126 Naples, Italy; University of Naples Federico II, Department of Chemical Sciences, Analytical Chemistry for the Environment, Via Vicinale Cupa Cintia 26, 80126 Naples, Italy.
| | - Susanne Heise
- Hamburg University of Applied Sciences, Faculty of Life Sciences, Ulmenliet 20, 21033 Hamburg, Germany
| | - Lorenzo Saviano
- University of Naples Federico II, Department of Biology, Via Vicinale Cupa Cintia 26, 80126 Naples, Italy
| | - Keran Zhang
- Constructor University, CritMET, School of Science, Campus Ring 1, 28219, Bremen, Germany
| | - Antonella Giarra
- University of Naples Federico II, Department of Chemical Sciences, Analytical Chemistry for the Environment, Via Vicinale Cupa Cintia 26, 80126 Naples, Italy
| | - Michael Bau
- Constructor University, CritMET, School of Science, Campus Ring 1, 28219, Bremen, Germany
| | - Franca Tommasi
- Aldo Moro Bari University, Department of Plant Biology, Via E. Orabona 4, I-70124 Bari, Italy
| | - Marco Guida
- University of Naples Federico II, Department of Biology, Via Vicinale Cupa Cintia 26, 80126 Naples, Italy; University of Naples Federico II, CeSMA Advanced Metrological and Technological Service Center, Corso Nicolangelo Protopisani, 80134 Naples, Italy
| | - Giovanni Libralato
- University of Naples Federico II, Department of Biology, Via Vicinale Cupa Cintia 26, 80126 Naples, Italy; University of Naples Federico II, CeSMA Advanced Metrological and Technological Service Center, Corso Nicolangelo Protopisani, 80134 Naples, Italy
| | - Marco Trifuoggi
- University of Naples Federico II, Department of Chemical Sciences, Analytical Chemistry for the Environment, Via Vicinale Cupa Cintia 26, 80126 Naples, Italy; University of Naples Federico II, CeSMA Advanced Metrological and Technological Service Center, Corso Nicolangelo Protopisani, 80134 Naples, Italy
| |
Collapse
|
2
|
Shi YXX, Xu HR, Shen J, Guo LY, Yan J, Jiang J, Hong ZN, Xu RK. A new simple index for characterizing the labile heavy metal concentration in soil by diffusive gradients in thin films technique. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 351:124061. [PMID: 38679131 DOI: 10.1016/j.envpol.2024.124061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/31/2024] [Accepted: 04/25/2024] [Indexed: 05/01/2024]
Abstract
Diffusive gradients in thin films technique (DGT) is recognized as a more reliable method for determining labile heavy metal (HM) concentration in soil than traditional destructive methods. However, the current DGT measurement index, CDGT, theoretically underestimates the true labile concentration (Clabile) of HMs in soil and lacks direct comparability with the conventional soil HM content indices due to unit differences. Here, we proposed CDGT-W, a new simple index which is defined as the HM accumulation in the binding layer, normalized to the weight of soil (optimized water content = 100% of the maximum water holding capacity) filled in the open cavity-type DGT device over a specified deployment time (optimized time = 24 h). The procedure for measuring CDGT-W is analogous to that of CDGT but includes precise determination of water content (water/dry soil) and the mass of soil filled in the cavity. We conducted measurements of Cu, Pb, Cr(Ⅵ) and As(V) as CDGT-W, CDGT, solution concentration (Csoln), and CaCl2 extractable concentration (CCaCl2) on three soils with a diverse range of HM concentrations. CDGT-W showed significant linear correlations with all other tested indexes. The ratios of CDGT-W to CCaCl2 varied between 0.30 and 0.98 for all HM-soil combinations with only one exception, a range much greater than CDGT/Csoln (typically <0.1) but lower than 1. This suggested that CDGT-W may more accurately reflect Clabile than CDGT (theoretically underestimates Cliable) and CCaCl2(likely overestimates Cliable). Additionally, CDGT-W measurements for these four HMs exhibited a broad measure concentration range and a low detection limit (mg/kg level). Consequently, CDGT-W may offer a more reliable alternative to CDGT for characterizing Clabile in unsaturated soils.
Collapse
Affiliation(s)
- Yang-Xiao-Xiao Shi
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P. O. Box 821, Nanjing, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hai-Rong Xu
- Co-Innovation Center for the Sustainable Forestry in Southern China/College of Biology and Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Jia Shen
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P. O. Box 821, Nanjing, China
| | - Lin-Yu Guo
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P. O. Box 821, Nanjing, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jing Yan
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P. O. Box 821, Nanjing, China
| | - Jun Jiang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P. O. Box 821, Nanjing, China
| | - Zhi-Neng Hong
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P. O. Box 821, Nanjing, China.
| | - Ren-Kou Xu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P. O. Box 821, Nanjing, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| |
Collapse
|
3
|
Li Q, Yan J, Li Y, Liu Y, Andom O, Li Z. Microplastics alter cadmium accumulation in different soil-plant systems: Revealing the crucial roles of soil bacteria and metabolism. JOURNAL OF HAZARDOUS MATERIALS 2024; 474:134768. [PMID: 38820749 DOI: 10.1016/j.jhazmat.2024.134768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 05/26/2024] [Accepted: 05/29/2024] [Indexed: 06/02/2024]
Abstract
Cadmium (Cd) and microplastics (MPs) gradually increased to be prevalent contaminants in soil, it is important to understand their combined effects on different soil-plant systems. We studied how different doses of polylactic acid (PLA) and polyethylene (PE) affected Cd accumulation, pakchoi growth, soil chemical and microbial properties, and metabolomics in two soil types. We found that high-dose MPs decreased Cd accumulation in plants in red soil, while all MPs decreased Cd bioaccumulation in fluvo-aquic soil. This difference was primarily attributed to the increase in dissolved organic carbon (DOC) and pH in red soil by high-dose MPs, which inhibited Cd uptake by plant roots. In contrast, MPs reduced soil nitrate nitrogen and available phosphorus, and weakened Cd mobilization in fluvo-aquic soil. In addition, high-dose PLA proved detrimental to plant health, manifesting in shortened shoot and root lengths. Co-exposure of Cd and MPs induced the shifts in bacterial populations and metabolites, with specific taxa and metabolites closely linked to Cd accumulation. Overall, co-exposure of Cd and MPs regulated plant growth and Cd accumulation by driving changes in soil bacterial community and metabolic pathways caused by soil chemical properties. Our findings could provide insights into the Cd migration in different soil-plant systems under MPs exposure. ENVIRONMENTAL IMPLICATION: Microplastics (MPs) and cadmium (Cd) are common pollutants in farmland soil. Co-exposure of MPs and Cd can alter Cd accumulation in plants, and pose a potential threat to human health through the food chain. Here, we investigated the effects of different types and doses of MPs on Cd accumulation, plant growth, soil microorganisms, and metabolic pathways in different soil-plant systems. Our results can contribute to our understanding of the migration and transport of Cd by MPs in different soil-plant systems and provide a reference for the control of combined pollution in the future research.
Collapse
Affiliation(s)
- Qingjie Li
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jing Yan
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yanli Li
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yuanwang Liu
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Okbagaber Andom
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Zhaojun Li
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| |
Collapse
|
4
|
Enjavinejad SM, Zahedifar M, Moosavi AA, Khosravani P. Integrated application of multiple indicators and geographic information system-based approaches for comprehensive assessment of environmental impacts of toxic metals-contaminated agricultural soils and vegetables. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:171747. [PMID: 38531460 DOI: 10.1016/j.scitotenv.2024.171747] [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: 12/06/2023] [Revised: 03/14/2024] [Accepted: 03/14/2024] [Indexed: 03/28/2024]
Abstract
Conventional monitoring and mapping approaches are laborious, expensive, and time-consuming because they need a large number of data and consequently extensive sampling and experimental operations. Therefore, due to the growing concern about the potential of contamination of soils and agricultural products with heavy metals (HMs), a field experiment was conducted on 77 farm lands in an area of 2300 ha in the southeast of Shiraz (Iran) to investigate the source of metal contamination in the soils and vegetables and to model spatial distribution of HMs (iron, Fe; manganese, Mn; copper, Cu; zinc, Zn; cadmium, Cd; nickel, Ni, and lead, Pb) over the region using geographic information system (GIS) and geostatistical (Ordinary Kriging, OK) approaches and compare the results with deterministic approaches (Inverse Distance Weighting, IDW with different weighting power). Furthermore, some ecological and health risks indices including Pollution index (PI), Nemerow integrated pollution index (NIPI), pollution load index (PLI), degree of contamination (Cdeg), modified contamination degree (mCd), PIaverage and PIvector for soil quality, multi-element contamination (MEC), the probability of toxicity (MERMQ), the potential ecological index (RI), total hazard index (THI) and total carcinogenic risk index (TCR) based on ingestion, inhalation, and dermal exposure pathways for adults and children respectively for analyzing the noncarcinogenic and carcinogenic risks were calculated. Experimental semivariogram of the mentioned HMs were calculated and theoretical models (i.e., exponential, spherical, Gaussian, and linear models) were fitted in order to model their spatial structures and to investigate the most representative models. Moreover, principal component analysis (PCA) and cluster analysis (CA) were used to identify sources of HMs in the soils. Results showed that IDW method was more efficient than the OK approach to estimate the properties and HMs contents in the soils and plants. The estimated daily intake of metals (DIM) values of Pb and Ni exceeded their safe limits. In addition, Cd was the main element responsible for ecological risk. The PIave and PIvector indices showed that soil quality in the study area is not suitable. According to mCd values, the soils classified as ultra-high contaminated for Cu and Cd, extremely high for Zn and Pb, very high, high, and very low degree of contamination for Ni, Mn, and Fe, respectively. 36, 60, and 4 % of the sampling sites had high, medium, and low risk levels with 49, 21, and 9 % probability of toxicity, respectively. The maximum health risk index (HRI) value of 20.42 with extremely high risk for children was obtained for Ni and the HI for adults and children were 0.22 and 1.55, respectively. The THI values of Pb and Cd were the highest compared to the other HMs studied, revealing a possible non-cancer risk in children associated with exposure to these metals. The routes of exposure with the greatest influence on the THI and TCR indices were in the order of ingestion > inhalation > dermal. Therefore, ingestion, as the main route of exposure, is the route of greatest contribution to health risks. PCA analysis revealed that Fe, Mn, Cu, and Ni may originate from natural sources, while Fe was appeared to be controlled by fertilizer, and Cu primarily coming from pesticide, while Cd and Pb were mainly associated with the anthropogenic contamination, atmospheric depositions, and terrific in the urban soils. While, Zn mainly originated from fertilization. Findings are vital for developing remediation approaches for controlling the contaminants distribution as well as for monitoring and mapping the quality and health of soil resources.
Collapse
Affiliation(s)
| | - Maryam Zahedifar
- Department of Range and Watershed Management (Nature Engineering), Faculty of Agriculture, Fasa University, Fasa, IR, Iran.
| | - Ali Akbar Moosavi
- Department of Soil Science, College of Agriculture, Shiraz University, Shiraz, IR, Iran.
| | - Pegah Khosravani
- Department of Soil Science, College of Agriculture, Shiraz University, Shiraz, IR, Iran
| |
Collapse
|
5
|
Yang Z, Xia H, Guo Z, Xie Y, Liao Q, Yang W, Li Q, Dong C, Si M. Development and application of machine learning models for prediction of soil available cadmium based on soil properties and climate features. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 355:124148. [PMID: 38735457 DOI: 10.1016/j.envpol.2024.124148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/18/2024] [Accepted: 05/09/2024] [Indexed: 05/14/2024]
Abstract
Identifying the key influencing factors in soil available cadmium (Cd) is crucial for preventing the Cd accumulation in the food chain. However, current experimental methods and traditional prediction models for assessing available Cd are time-consuming and ineffective. In this study, machine learning (ML) models were developed to investigate the intricate interactions among soil properties, climate features, and available Cd, aiming to identify the key influencing factors. The optimal model was obtained through a combination of stratified sampling, Bayesian optimization, and 10-fold cross-validation. It was further explained through the utilization of permutation feature importance, 2D partial dependence plot, and 3D interaction plot. The findings revealed that pH, surface pressure, sensible heat net flux and organic matter content significantly influenced the Cd accumulation in the soil. By utilizing historical soil surveys and climate change data from China, this study predicted the spatial distribution trend of available Cd in the Chinese region, highlighting the primary areas with heightened Cd activity. These areas were primarily located in the eastern, southern, central, and northeastern China. This study introduces a novel methodology for comprehending the process of available Cd accumulation in soil. Furthermore, it provides recommendations and directions for the remediation and control of soil Cd pollution.
Collapse
Affiliation(s)
- Zhihui Yang
- Institute of Environmental Science and Engineering, School of Metallurgy and Environment, Central South University, 410083, Changsha, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, 410083, Changsha, China
| | - Hui Xia
- Institute of Environmental Science and Engineering, School of Metallurgy and Environment, Central South University, 410083, Changsha, China
| | - Ziyun Guo
- Institute of Environmental Science and Engineering, School of Metallurgy and Environment, Central South University, 410083, Changsha, China
| | - Yanyan Xie
- Institute of Environmental Science and Engineering, School of Metallurgy and Environment, Central South University, 410083, Changsha, China
| | - Qi Liao
- Institute of Environmental Science and Engineering, School of Metallurgy and Environment, Central South University, 410083, Changsha, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, 410083, Changsha, China
| | - Weichun Yang
- Institute of Environmental Science and Engineering, School of Metallurgy and Environment, Central South University, 410083, Changsha, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, 410083, Changsha, China
| | - Qingzhu Li
- Institute of Environmental Science and Engineering, School of Metallurgy and Environment, Central South University, 410083, Changsha, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, 410083, Changsha, China
| | - ChunHua Dong
- Soil and Fertilizer Institute of Hunan Province, 410125, Changsha, China
| | - Mengying Si
- Institute of Environmental Science and Engineering, School of Metallurgy and Environment, Central South University, 410083, Changsha, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, 410083, Changsha, China.
| |
Collapse
|
6
|
Asare EA, Abdul-Wahab D, Asamoah A, Dampare SB, Kaufmann EE, Wahi R, Ngaini Z, Klutse CK, Klutse NAB, Bempah CK, Fianko JR, Otoo EA. The effect of soil types, pH, and geographical locations on carcinogenic metal buildup in Oryza sativa cultivated in Ghana. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:494. [PMID: 38691200 DOI: 10.1007/s10661-024-12654-7] [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: 02/02/2024] [Accepted: 04/19/2024] [Indexed: 05/03/2024]
Abstract
This study investigated the impact of soil type, pH, and geographical locations on the accumulation of arsenic (As), lead (Pb), and cadmium (Cd) in rice grains cultivated in Ghana. One hundred rice farms for the sampling of rice grains and soil were selected from two regions in Ghana-Volta and Oti. The concentrations of As, Pb, and Cd were analyzed using ICP-OES. Speciation modeling and multivariate statistics were employed to ascertain the relations among measured parameters. The results showed significant variations in soil-As, Pb, and Cd levels across different soil types and pH ranges, with the highest soil-As and Cd found in alkaline vertisols. For soil-As and Cd, the vertisols with a pH more than 7.0 exhibited the highest mean concentration of As (2.51 ± 0.932 mgkg-1) and Cd (1.00 ± 0.244 mgkg-1) whereas for soil-Pb, the luvisols of soil types with a pH less than 6.0 exhibited the highest mean concentration of Pb (4.91 ± 1.540 mgkg-1). Grain As, Pb, and Cd also varied across soil types and pH levels. In regards to grain-As, the vertisols soil type, with a pH less than 6.0, shows the highest mean concentration of grain As, at 0.238 ± 0.107 mgkg-1. Furthermore, vertisols soil types with a pH level less than 6.0 showed the highest mean concentration of grain Cd, averaging at 0.231 ± 0.068 mgkg-1 while luvisols, with a pH less than 6.0, exhibited the highest mean concentration of grain Pb at 0.713 ± 0.099 mgkg-1. Speciation modeling indicated increased bioavailability of grains Cd2+ and Pb2+ ions in acidic conditions. A significant interaction was found between soil-Cd and pH, affecting grain-As uptake. The average concentrations of soil As, Pb, and Cd aligned with international standards. Generally, the carcinogenic metals detected in grain samples collected from the Volta region are higher than that of the Oti region but the differences are insignificant, and this may be attributed to geographical differences and anthropogenic activities. About 51% of the study area showed a hazard risk associated with grain metal levels, although, no carcinogenic risks were recognized. This study highlights the complex soil-plant interactions governing metal bioaccumulation and emphasizes the need for tailored strategies to minimize metal transfer into grains.
Collapse
Affiliation(s)
- Ebenezer Aquisman Asare
- Nuclear Chemistry and Environmental Research Centre, National Nuclear Research Institute (NNRI), Ghana Atomic Energy Commission (GAEC), Box LG 80, Legon, Accra, Ghana.
| | - Dickson Abdul-Wahab
- Department of Nuclear Science and Applications, School of Nuclear and Allied Sciences, University of Ghana, Atomic, Kwabenya, Accra, Ghana
| | - Anita Asamoah
- Nuclear Chemistry and Environmental Research Centre, National Nuclear Research Institute (NNRI), Ghana Atomic Energy Commission (GAEC), Box LG 80, Legon, Accra, Ghana
| | - Samuel Boakye Dampare
- Department of Nuclear Science and Applications, School of Nuclear and Allied Sciences, University of Ghana, Atomic, Kwabenya, Accra, Ghana
| | | | - Rafeah Wahi
- Department of Chemistry, Faculty of Resource Science and Technology (FRST), Universiti Malaysia Sarawak, Kota Samarahan, Sarawak, Malaysia
| | - Zainab Ngaini
- Department of Chemistry, Faculty of Resource Science and Technology (FRST), Universiti Malaysia Sarawak, Kota Samarahan, Sarawak, Malaysia
| | - Charles Kofi Klutse
- Nuclear Power Institute (NPI), Ghana Atomic Energy Commission (GAEC), Box LG 80, Legon, Accra, Ghana
| | | | - Crentsil Kofi Bempah
- Nuclear Chemistry and Environmental Research Centre, National Nuclear Research Institute (NNRI), Ghana Atomic Energy Commission (GAEC), Box LG 80, Legon, Accra, Ghana
| | - Joseph Richmond Fianko
- Department of Nuclear Science and Applications, School of Nuclear and Allied Sciences, University of Ghana, Atomic, Kwabenya, Accra, Ghana
| | - Evelyn Ama Otoo
- Biotechnology and Nuclear Agriculture Research Institute (BNARI), Ghana Atomic Energy Commission (GAEC), Box LG 80, Legon, Accra, Ghana
| |
Collapse
|
7
|
Zhao Y, Hou Y, Wang F. Ecological Risk and Pollution Assessment of Heavy Metals in Farmland Soil Profile with Consideration of Atmosphere Deposition in Central China. TOXICS 2024; 12:45. [PMID: 38251001 PMCID: PMC10819585 DOI: 10.3390/toxics12010045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 12/29/2023] [Accepted: 01/02/2024] [Indexed: 01/23/2024]
Abstract
Heavy metals (HMs) in agricultural land have caused serious environmental problems, resulting in severe contamination of the food chain and posing potential health threats. This study aims to investigate the pollution levels and potential ecological risks of HMs in farmland soils in central China, taking into account atmospheric deposition. Several indices were used to assess the status of HMs and compare surface soil with deeper soil. Descriptive statistics, Pearson correlation, and UMAP clustering methods were utilized to identify the characteristics of HMs. Additionally, stepwise linear regression models were employed to quantify the contributions of different variables to the potential ecological risks of HMs. The results showed that the average content of Zn in surface soil (289.41 ± 87.72 mg/kg) was higher than in the deeper soil (207.62 ± 37.81 mg/kg), and similar differences were observed in the mean values of related Igeo (1.622 ± 0.453 in surface soil and 1.183 ± 0.259 in deeper soil) and PEI (0.965 ± 0.292 in surface soil and 0.692 ± 0.126 in deeper soil) indices. This indicates that surface soil is more heavily polluted. The UMAP results confirmed the high variability of HMs in the surface soil, while PCA results suggested the importance of pollution and ecological risk indices. The stepwise linear model revealed that different variable structures contribute differently to the risk. In conclusion, Cr and Zn were found to be the major contaminants in the local farmland soil, with higher concentrations in the surface soil. The geoaccumulation and total potential ecological risk were classified as low risk. High variability of HMs was observed in the surface soil. Therefore, HM-related pollution indices and ecological risk indices are important for assessing the contamination status of local HMs. The local potential ecological risk can be attributed to specific heavy metals, each of which can have different effects on the local ecological risk.
Collapse
Affiliation(s)
- Yang Zhao
- School of Physical Education, Shanxi University, Taiyuan 030006, China; (Y.Z.); (Y.H.)
- Sports Science Institute, Shanxi University, Taiyuan 030006, China
| | - Yuxin Hou
- School of Physical Education, Shanxi University, Taiyuan 030006, China; (Y.Z.); (Y.H.)
| | - Fei Wang
- School of Physical Education, Shanxi University, Taiyuan 030006, China; (Y.Z.); (Y.H.)
- Sports Science Institute, Shanxi University, Taiyuan 030006, China
| |
Collapse
|
8
|
Lin BG, Pan P, Wei CX, Chen XC, Zhang ZY, Fan QF, Liu F, Liu BB, Wu L. Health risk assessment of trace metal(loid)s in agricultural soil using an integrated model combining soil-related and plants-accumulation exposures: A case study on Hainan Island, South China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 896:165242. [PMID: 37394068 DOI: 10.1016/j.scitotenv.2023.165242] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/28/2023] [Accepted: 06/29/2023] [Indexed: 07/04/2023]
Abstract
Traditional health risk assessment of trace metal(loid)s (TMs) in agricultural soil exclusively considers direct soil-related exposure and may underestimate the health risks they pose. In this study, the health risks of TMs were evaluated using an integrated model that combined soil-related and plant-accumulating exposures. A detailed investigation of common TMs (Cr, Pb, Cd, As, and Hg) coupled with probability risk analysis based on a Monte Carlo simulation was conducted on Hainan Island. Our results showed that, except for As, the non-carcinogenic risk (HI) and carcinogenic risk (CR) of the TMs were all within the acceptable ranges (HI < 1.0, and CR < 1E-06) for direct soil-related exposure to bio-accessible fractions and indirect exposure via plant accumulation (CR substantially lower than the warning threshold 1E-04). We identified crop food ingestion as the essential pathway for TM exposure and As as the critical toxic element in terms of risk control. Moreover, we determined that RfDo and SFo are the most suitable parameters for assessing As health risk severity. Our study demonstrated that the proposed integrated model combining soil-related and plant-accumulating exposures can avoid major health risk assessment deviations. The results obtained and the integrated model proposed in this study can facilitate future multi-pathway exposure research and could be the basis for determining agricultural soil quality criteria in tropical areas.
Collapse
Affiliation(s)
- Bi-Gui Lin
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China; Hainan Danzhou Tropical Agro-ecosystem National Observation and Research Station, Key Laboratory of Low-carbon Green Agriculture in Tropical Region of China, Ministry of Agriculture and Rural Affairs, Danzhou 571737, PR China
| | - Pan Pan
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China; Hainan Danzhou Tropical Agro-ecosystem National Observation and Research Station, Key Laboratory of Low-carbon Green Agriculture in Tropical Region of China, Ministry of Agriculture and Rural Affairs, Danzhou 571737, PR China
| | - Chao-Xian Wei
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China; Hainan Danzhou Tropical Agro-ecosystem National Observation and Research Station, Key Laboratory of Low-carbon Green Agriculture in Tropical Region of China, Ministry of Agriculture and Rural Affairs, Danzhou 571737, PR China
| | - Xi-Chao Chen
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China
| | - Zong-Yao Zhang
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China
| | - Qing-Fang Fan
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China; Key Laboratory of Green Pesticide and Agricultural Engineering of Ministry of Education, Guizhou University, Guiyang 550025, Guizhou Province, PR China
| | - Fang Liu
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China; College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, Hubei Province, PR China
| | - Bei-Bei Liu
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China; Hainan Danzhou Tropical Agro-ecosystem National Observation and Research Station, Key Laboratory of Low-carbon Green Agriculture in Tropical Region of China, Ministry of Agriculture and Rural Affairs, Danzhou 571737, PR China.
| | - Lin Wu
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China; Hainan Danzhou Tropical Agro-ecosystem National Observation and Research Station, Key Laboratory of Low-carbon Green Agriculture in Tropical Region of China, Ministry of Agriculture and Rural Affairs, Danzhou 571737, PR China.
| |
Collapse
|
9
|
Popoola LT, Olawale TO, Salami L. A review on the fate and effects of contaminants in biosolids applied on land: Hazards and government regulatory policies. Heliyon 2023; 9:e19788. [PMID: 37810801 PMCID: PMC10556614 DOI: 10.1016/j.heliyon.2023.e19788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 08/31/2023] [Accepted: 08/31/2023] [Indexed: 10/10/2023] Open
Abstract
The increase in world population growth and its resultant increase in industrial production to meet its need, have continued to raise the volume of wastewater received by treatment plant facilities. This has expectedly, led to an upsurge in the volume of sewage sludge and biosolids generated from wastewater treatment systems. Biosolids are best managed by application on land because of their agronomic benefits. However, this usage has been discovered to negatively affect humans and impact the environment due to the accumulation of minute concentrations of contaminants still present in the biosolid after treatment, hence the need for government regulations. This review article examined the fate and effects of pollutants, especially persistent organic pollutants (PoPs) of concern and emerging contaminants found in biosolids used for land applications, and also discussed government regulations on biosolid reuse from the perspectives of the two major regulations governing biosolid land application-the EU's Sludge Directive and USEPA's Part 503 Rule, in an attempt to draw attention to their outdated contents since enactment, as they do not currently meet the challenges of biosolid land application and thus, require a comprehensive update. Any update efforts should focus on USEPA's Part 503 Rule, which is less stringent on the allowable concentration of biosolid pollutants. Furthermore, an update should include specific regulations on new and emerging contaminants and persistent organic pollutants (PoPs) such as microplastics, pharmaceutical and personal care products (P&PCPs), surfactants, endocrine-disrupting chemicals, flame retardants, pathogens, and organic pollutants; further reduction of heavy metal standard limits, and consideration of soil phosphate-metal interactions to regulate biosolid agronomic loading rate. Future biosolid research should focus on the concentration of TCS, TCC, and emerging pharmaceuticals, as well as Microplastic transport in biosolid-amended soils, soil-plant transfer mechanism, and metabolism of PFAs in the soils; all of which will inform government policies on biosolid application on land.
Collapse
Affiliation(s)
- Lekan Taofeek Popoola
- Department of Chemical and Petroleum Engineering, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Theophilus Ogunwumi Olawale
- Department of Chemical and Petroleum Engineering, University of Lagos, Akoka, Yaba, Lagos State, Nigeria
- Environmental Engineering Research Unit, Department of Chemical Engineering, Lagos State University, Epe, Lagos State, Nigeria
| | - Lukumon Salami
- Environmental Engineering Research Unit, Department of Chemical Engineering, Lagos State University, Epe, Lagos State, Nigeria
| |
Collapse
|
10
|
Macklin MG, Thomas CJ, Mudbhatkal A, Brewer PA, Hudson-Edwards KA, Lewin J, Scussolini P, Eilander D, Lechner A, Owen J, Bird G, Kemp D, Mangalaa KR. Impacts of metal mining on river systems: a global assessment. Science 2023; 381:1345-1350. [PMID: 37733841 DOI: 10.1126/science.adg6704] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 08/18/2023] [Indexed: 09/23/2023]
Abstract
An estimated 23 million people live on floodplains affected by potentially dangerous concentrations of toxic waste derived from past and present metal mining activity. We analyzed the global dimensions of this hazard, particularly in regard to lead, zinc, copper, and arsenic, using a georeferenced global database detailing all known metal mining sites and intact and failed tailings storage facilities. We then used process-based and empirically tested modeling to produce a global assessment of metal mining contamination in river systems and the numbers of human populations and livestock exposed. Worldwide, metal mines affect 479,200 kilometers of river channels and 164,000 square kilometers of floodplains. The number of people exposed to contamination sourced from long-term discharge of mining waste into rivers is almost 50 times greater than the number directly affected by tailings dam failures.
Collapse
Affiliation(s)
- M G Macklin
- Lincoln Centre for Water and Planetary Health, University of Lincoln, Lincoln, UK
- Innovative River Solutions, Institute of Agriculture and Environment, Massey University, Palmerston North, New Zealand
- Centre for the Study of the Inland, La Trobe University, Melbourne, Australia
| | - C J Thomas
- Lincoln Centre for Water and Planetary Health, University of Lincoln, Lincoln, UK
- University of Namibia, Windhoek, Namibia
| | - A Mudbhatkal
- Lincoln Centre for Water and Planetary Health, University of Lincoln, Lincoln, UK
| | - P A Brewer
- Department of Geography and Earth Sciences, Aberystwyth University, Aberystwyth, Ceredigion, UK
| | - K A Hudson-Edwards
- Environment & Sustainability Institute and Camborne School of Mines, University of Exeter, Penryn, Cornwall, UK
| | - J Lewin
- Department of Geography and Earth Sciences, Aberystwyth University, Aberystwyth, Ceredigion, UK
| | - P Scussolini
- Institute for Environmental Studies, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - D Eilander
- Institute for Environmental Studies, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
- Department of Inland Water Systems, Deltares, Delft, Netherlands Institute for Environmental Studies, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - A Lechner
- Monash University Indonesia, Jakarta, Indonesia
| | - J Owen
- Centre for Development Support, University of the Free State, Bloemfontein, South Africa
| | - G Bird
- School of Natural Sciences, Bangor University, Bangor, Gwynedd, UK
| | - D Kemp
- Centre for Social Responsibility in Mining, Sustainable Minerals Institute, The University of Queensland, St Lucia, Australia
| | - K R Mangalaa
- Ministry of Earth Sciences, Government of India, New Delhi, India
| |
Collapse
|
11
|
Hu C, Zhang X, Zhan N, Liu Y. Current Status and Health Risk Assessment of Heavy Metals Contamination in Tea across China. TOXICS 2023; 11:662. [PMID: 37624168 PMCID: PMC10459165 DOI: 10.3390/toxics11080662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/10/2023] [Accepted: 07/27/2023] [Indexed: 08/26/2023]
Abstract
Tea is a non-alcoholic beverage popular among Chinese people. However, due to the application of chemical and organic fertilizers in the tea planting process, the environment pollutionaround the tea plantation, and the instruments used in the processing, heavy metal elements will accumulate in the tea, which brings health risks for tea consumers. This study summarized heavy metal concentrations from 227 published papers and investigated the current contamination status of tea and tea plantation soils, and, finally, the risk of heavy metal exposure to tea consumers in China is assessed, in terms of both non-carcinogenic and carcinogenic risk. The average contamination of six heavy metals in tea-arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), and lead (Pb)-were 0.21, 0.14, 1.17, 14.6, 0.04, and 1.09 mg/kg, respectively. The areas with high concentrations of heavy metals in tea were concentrated primarily in southwest China, some areas in eastern China, and Shaanxi Province in northwest China. The non-carcinogenic risks of heavy metals in tea are all within safe limits. The national average HI value was 0.04, with the highest HI value of 0.18 in Tibet, which has the largest tea consumption in China. However, the carcinogenic risks of Cd in Shaanxi Province, Anhui Province, and southwest China exceed the acceptable range, and due attention should be given to these areas.
Collapse
Affiliation(s)
- Chenglin Hu
- International Institute for Earth System Science, Nanjing University, Nanjing 210023, China; (C.H.)
- Key Laboratory of Urban Land Resources Monitoring and Simulation, Ministry of Natural Resources, Shenzhen 518000, China
- Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China
| | - Xiuying Zhang
- International Institute for Earth System Science, Nanjing University, Nanjing 210023, China; (C.H.)
| | - Nan Zhan
- International Institute for Earth System Science, Nanjing University, Nanjing 210023, China; (C.H.)
| | - Youcun Liu
- School of Geography and Tourism, Jiaying University, Meizhou 514015, China
| |
Collapse
|
12
|
Tőzsér D, Yelamanova A, Sipos B, Magura T, Simon E. A meta-analysis on the heavy metal uptake in Amaranthus species. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:85102-85112. [PMID: 37369905 PMCID: PMC10404196 DOI: 10.1007/s11356-023-28374-3] [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: 09/30/2022] [Accepted: 06/18/2023] [Indexed: 06/29/2023]
Abstract
Metals can accumulate in different parts of plant species in high concentrations, which gives the basis for the plant-based technology called phytoremediation. Among annual species, Amaranthus is a well-studied, potential metal accumulator genus; however, some conflicts are found among published results. Thus, we studied the metal (Cd, Cu, Fe, Ni, Pb, and Zn) accumulation potential of Amaranthus plant parts (root, stem, and leaf) by meta-analysis, furthermore, by calculation of bioaccumulation factor (BAF) values. After the extensive literature search and the calculation of relative interaction intensity (RII) values, we found significant accumulation for each metal by Amaranthus individuals growing on contaminated soils compared to plants collected from uncontaminated ones. Differences among plant parts were significant for Cu and Fe, minor for Ni, Pb, and Zn, and negligible for Cd. The BAF values indicated high accumulation in the leaf, moderate in root and stem for Cd, moderate in each plant part for Pb, and very low in each plant part for Fe, Ni, and Zn. We highlight that Amaranthus species are good prospects for metal phytoremediation projects, although, due to specific plant part-metal patterns, special attention should be paid to the harvesting practice.
Collapse
Affiliation(s)
- Dávid Tőzsér
- Department of Ecology, University of Debrecen, Egyetem Sq. 1, 4032, Debrecen, Hungary
- Circular Economy Analysis Center, Hungarian University of Agriculture and Life Sciences, Páter Károly str. 1, H-2100, Gödöllő, Hungary
| | - Ayash Yelamanova
- Department of Ecology, University of Debrecen, Egyetem Sq. 1, 4032, Debrecen, Hungary
| | - Bianka Sipos
- Department of Ecology, University of Debrecen, Egyetem Sq. 1, 4032, Debrecen, Hungary
- ELKH-DE Anthropocene Ecology Research Group, Egyetem Tér 1, 4032, Debrecen, Hungary
| | - Tibor Magura
- Department of Ecology, University of Debrecen, Egyetem Sq. 1, 4032, Debrecen, Hungary
- ELKH-DE Anthropocene Ecology Research Group, Egyetem Tér 1, 4032, Debrecen, Hungary
| | - Edina Simon
- Department of Ecology, University of Debrecen, Egyetem Sq. 1, 4032, Debrecen, Hungary.
- ELKH-DE Anthropocene Ecology Research Group, Egyetem Tér 1, 4032, Debrecen, Hungary.
| |
Collapse
|
13
|
Aguilar-Garrido A, Reyes-Martín MP, Vidigal P, Abreu MM. A Green Solution for the Rehabilitation of Marginal Lands: The Case of Lablab purpureus (L.) Sweet Grown in Technosols. PLANTS (BASEL, SWITZERLAND) 2023; 12:2682. [PMID: 37514296 PMCID: PMC10385650 DOI: 10.3390/plants12142682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 07/12/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023]
Abstract
Reclamation of abandoned mining areas can be a potentially viable solution to tackle three major problems: waste mismanagement, environmental contamination, and growing food demand. This study aims to evaluate the rehabilitation of mining areas into agricultural production areas using integrated biotechnology and combining Technosols with a multipurpose (forage, food, ornamental and medicinal) drought-resistant legume, the Lablab purpureus (L.) Sweet. Two Technosols were prepared by combining gossan waste (GW) from an abandoned mining area with a mix of low-cost organic and inorganic materials. Before and after plant growth, several parameters were analysed, such as soil physicochemical characteristics, nutritional status, bioavailable concentrations of potentially hazardous elements (PHE), soil enzymatic activities, and development and accumulation of PHE in Lablab, among others. Both Technosols improved physicochemical conditions, nutritional status and microbiological activity, and reduced the bioavailability of most PHE (except As) of GW. Lablab thrived in both Technosols and showed PHE accumulation mainly in the roots, with PHE concentrations in the shoots that are safe for cattle and sheep consumption. Thus, this is a potential plant that, in conjunction with Technosols, constitutes a potential integrated biotechnology approach for the conversion of marginal lands, such as abandoned mining areas, into food-production areas.
Collapse
Affiliation(s)
- Antonio Aguilar-Garrido
- Departamento de Edafología y Química Agrícola, Facultad de Ciencias, Universidad de Granada, Av. de Fuente Nueva s/n, 18071 Granada, Spain
| | - Marino Pedro Reyes-Martín
- Departamento de Edafología y Química Agrícola, Facultad de Ciencias, Universidad de Granada, Av. de Fuente Nueva s/n, 18071 Granada, Spain
| | - Patrícia Vidigal
- LEAF-Linking Landscape, Environment, Agriculture and Food Research Center, Associate Laboratory TERRA, Instituto Superior de Agronomia (ISA), Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - Maria Manuela Abreu
- LEAF-Linking Landscape, Environment, Agriculture and Food Research Center, Associate Laboratory TERRA, Instituto Superior de Agronomia (ISA), Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal
| |
Collapse
|
14
|
Zou M, Qin W, Wang Q, Qiu Y, Yin Q, Zhou S. Translocation pattern of heavy metals in soil-rice systems at different growth stages: A case study in the Taihu region, Eastern China. CHEMOSPHERE 2023; 330:138558. [PMID: 37059205 DOI: 10.1016/j.chemosphere.2023.138558] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/27/2023] [Accepted: 03/30/2023] [Indexed: 05/14/2023]
Abstract
Rice production is crucial for human nutrition and food safety globally. However, it has been a significant sink for potentially harmful metals because of intensive anthropogenic activities. The study was conducted to characterize heavy metal translocation from soil to rice at the filling, doughing and maturing stages, and influencing factors of their accumulation in rice. The distribution and accumulation patterns varied for metal species and growth stages. Cd and Pb accumulation mainly occurred in roots, Cu and Zn were readily transported to stems. Cd, Cu, and Zn accumulation in grains had a descending order of filling > doughing > maturing. Soil heavy metals, TN, EC, and pH exerted important impacts on heavy metals uptake by roots during the period from filling stage to maturing stage. Concentrations of heavy metals in grains were positively correlated with the translocation factors TFstem-grain (from stem to grain) and TFleaf-grain (from leaf to grain). Grain Cd exhibited significant correlations with total Cd and DTPA-Cd in the soil at each of the three growth stages. Moreover, Cd in maturing grain could be effectively predicted by soil pH and DTPA-Cd at the filling stage.
Collapse
Affiliation(s)
- Mengmeng Zou
- School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China; Key Laboratory of Coastal Zone Exploitation and Protection, Ministry of Natural Resources, Nanjing, 210024, China
| | - Wendong Qin
- School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China; Key Laboratory of Coastal Zone Exploitation and Protection, Ministry of Natural Resources, Nanjing, 210024, China
| | - Qian Wang
- School of Geography and Environment, Liaocheng University, Liaocheng, Shandong, 252059, China
| | - Yifei Qiu
- School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China; Key Laboratory of Coastal Zone Exploitation and Protection, Ministry of Natural Resources, Nanjing, 210024, China
| | - Qiqi Yin
- School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China; Key Laboratory of Coastal Zone Exploitation and Protection, Ministry of Natural Resources, Nanjing, 210024, China
| | - Shenglu Zhou
- School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China; Key Laboratory of Coastal Zone Exploitation and Protection, Ministry of Natural Resources, Nanjing, 210024, China.
| |
Collapse
|
15
|
Huang Y, Wang D, Jiang J, Gong J, Liu Y, Li L, Kong L, Ruan Y, Lv H, Chen Y, Chen Z, Liang Q, Chen D. Release and mobility characteristics of thallium from polluted farmland in varying fertilization: Role of cation exchange. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131928. [PMID: 37379595 DOI: 10.1016/j.jhazmat.2023.131928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 06/11/2023] [Accepted: 06/22/2023] [Indexed: 06/30/2023]
Abstract
Batch and column leaching tests were used to study thallium's release and migration behaviour and evaluate its potential toxicity risks in soil. The results indicated that leaching concentrations of Tl using TCLP and SWLP were much higher than the threshold, indicating a high risk of thallium pollution in the soil. Furthermore, the intermittent leaching rate of Tl by Ca2+ and HCl reached its maximum value, demonstrating the easy release of Tl. After HCl leaching, the form of Tl in the soil has changed, and ammonium sulfate has increased its extractability. Additionally, the extensive application of calcium promoted the release of Tl, increasing its potential ecological risk. Spectral analysis showed that Tl was mainly present in minerals such as Kaolinite and Jarosite, and exhibited significant adsorption capacity for Tl. HCl and Ca2+ damaged the crystal structure of the soil, greatly enhancing the migration and mobility of Tl in the environment. More importantly, XPS analysis confirmed that the release of Tl (I) in the soil was the leading cause of increased mobility and bioavailability. Therefore, the results revealed the risk of Tl release in the soil, providing theoretical guidance for its pollution prevention and control.
Collapse
Affiliation(s)
- Ying Huang
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, PR China
| | - Dexin Wang
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Junhong Jiang
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Jian Gong
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Yuxian Liu
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Long Li
- School of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, PR China
| | - Linjun Kong
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Yang Ruan
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Hang Lv
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Yongheng Chen
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Zibiao Chen
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Qi Liang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Diyun Chen
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, PR China.
| |
Collapse
|
16
|
Toropova AP, Toropov AA, Roncaglioni A, Benfenati E, Leszczynska D, Leszczynski J. CORAL: Model of Ecological Impact of Heavy Metals on Soils via the Study of Modification of Concentration of Biomolecules in Earthworms (Eisenia fetida). ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2023; 84:504-515. [PMID: 37202557 DOI: 10.1007/s00244-023-01001-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 04/25/2023] [Indexed: 05/20/2023]
Abstract
The traditional application for quantitative structure-property/activity relationships (QSPRs/QSARs) in the fields of thermodynamics, toxicology or drug design is predicting the impact of molecular features using data on the measurable characteristics of substances. However, it is often necessary to evaluate the influence of various exposure conditions and environmental factors, besides the molecular structure. Different enzyme-driven processes lead to the accumulation of metal ions by the worms. Heavy metals are sequestered in these organisms without being released back into the soil. In this study, we propose a novel approach for modeling the absorption of heavy metals, such as mercury and cobalt by worms. The models are based on optimal descriptors calculated for the so-called quasi-SMILES, which incorporate strings of codes reflecting experimental conditions. We modeled the impact on the levels of proteins, hydrocarbons, and lipids in an earthworm's body caused by different combinations of concentrations of heavy metals and exposure time observed over two months of exposure with a measurement interval of 15 days.
Collapse
Affiliation(s)
- Alla P Toropova
- Laboratory of Environmental Chemistry and Toxicology, Department of Environmental Health Science, Istituto Di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy.
| | - Andrey A Toropov
- Laboratory of Environmental Chemistry and Toxicology, Department of Environmental Health Science, Istituto Di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy
| | - Alessandra Roncaglioni
- Laboratory of Environmental Chemistry and Toxicology, Department of Environmental Health Science, Istituto Di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy
| | - Emilio Benfenati
- Laboratory of Environmental Chemistry and Toxicology, Department of Environmental Health Science, Istituto Di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy
| | - Danuta Leszczynska
- Interdisciplinary Nanotoxicity Center, Department of Civil and Environmental Engineering, Jackson State University, 1325 Lynch Street, Jackson, MS, 39217-0510, USA
| | - Jerzy Leszczynski
- Interdisciplinary Nanotoxicity Center, Department of Chemistry, Physics and Atmospheric Sciences, Jackson State University, Jackson, MS, 39217, USA
| |
Collapse
|
17
|
Paniagua-López M, Aguilar-Garrido A, Contero-Hurtado J, García-Romera I, Sierra-Aragón M, Romero-Freire A. Ecotoxicological Assessment of Polluted Soils One Year after the Application of Different Soil Remediation Techniques. TOXICS 2023; 11:298. [PMID: 37112525 PMCID: PMC10143980 DOI: 10.3390/toxics11040298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 06/19/2023]
Abstract
The present work evaluated the influence of eight different soil remediation techniques, based on the use of residual materials (gypsum, marble, vermicompost) on the reduction in metal(loid)s toxicity (Cu, Zn, As, Pb and Cd) in a polluted natural area. Selected remediation treatments were applied in a field exposed to real conditions and they were evaluated one year after the application. More specifically, five ecotoxicological tests were carried out using different organisms on either the solid or the aqueous (leachate) fraction of the amended soils. Likewise, the main soil properties and the total, water-soluble and bioavailable metal fractions were determined to evaluate their influence on soil toxicity. According to the toxicity bioassays performed, the response of organisms to the treatments differed depending on whether the solid or the aqueous fraction was used. Our results highlighted that the use of a single bioassay may not be sufficient as an indicator of toxicity pathways to select soil remediation methods, so that the joint determination of metal availability and ecotoxicological response will be determinant for the correct establishment of any remediation technique carried out under natural conditions. Our results indicated that, of the different treatments used, the best technique for the remediation of metal(loid)s toxicity was the addition of marble sludge with vermicompost.
Collapse
Affiliation(s)
- Mario Paniagua-López
- Departamento de Edafología y Química Agrícola, Faculty of Science, University of Granada, 18071 Granada, Spain; (A.A.-G.); (J.C.-H.); (M.S.-A.)
- Departamento de Microbiología del Suelo y Sistemas Simbióticos, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (EEZ-CSIC), 18008 Granada, Spain;
| | - Antonio Aguilar-Garrido
- Departamento de Edafología y Química Agrícola, Faculty of Science, University of Granada, 18071 Granada, Spain; (A.A.-G.); (J.C.-H.); (M.S.-A.)
| | - José Contero-Hurtado
- Departamento de Edafología y Química Agrícola, Faculty of Science, University of Granada, 18071 Granada, Spain; (A.A.-G.); (J.C.-H.); (M.S.-A.)
| | - Inmaculada García-Romera
- Departamento de Microbiología del Suelo y Sistemas Simbióticos, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (EEZ-CSIC), 18008 Granada, Spain;
| | - Manuel Sierra-Aragón
- Departamento de Edafología y Química Agrícola, Faculty of Science, University of Granada, 18071 Granada, Spain; (A.A.-G.); (J.C.-H.); (M.S.-A.)
| | - Ana Romero-Freire
- Departamento de Edafología y Química Agrícola, Faculty of Science, University of Granada, 18071 Granada, Spain; (A.A.-G.); (J.C.-H.); (M.S.-A.)
| |
Collapse
|
18
|
Mukherjee A, Pal S, Das P, Mukhopadhyay SK. Heavy metal exposure to a migratory waterfowl, Northern Pintail (Anas acuta), in two peri-urban wetlands. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:158238. [PMID: 36002093 DOI: 10.1016/j.scitotenv.2022.158238] [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: 06/21/2022] [Revised: 08/08/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
In this study, the heavy metal exposure risk model was employed to assess the exposure risk to a predominantly herbivore waterfowl, Northern Pintail, wintering in two wetland habitats in the Purulia district of West Bengal, located on overlapping Central Asian Flyway (CAF) and East Asian-Australasian Flyway (EAAF). Both wetlands were important staging and roosting grounds for migratory waterfowl for ages. The exposure model was used to quantify the risk of exposure to metals through oral ingestion. Exposure doses of Cu, Zn, Pb, and Cr through food plants ingestion and food-associated sediment consumption pathways were two potent sources of heavy metal exposure in the waterfowl under study. Exposure through water intake was ignored as metals were either of negligible concentrations or below the detection limit in water samples. Heavy metal concentrations showed significant positive correlations between bottom sediment and plant at both sites. At Purulia Sahebbandh (Site 1), the total exposure dose of all four metals was much higher than their conforming tolerable daily intake (TDI), and thereby, the metals might pose threats to the migratory wintering herbivorous waterfowl populations. However, in Adra Sahebbandh (Site 2), total exposure doses of Pb, Zn and Cu were much below their corresponding TDI. The Hazard Quotient (HQ) of Cr was highest followed by nonessential toxic Pb and these two elements could be considered as priority pollutants at Site 1. Prioritize threats were decreased in the following sequence: Cr > Pb > Cu > Zn at Site 1 and Cr > Zn > Pb > Cu at Site 2. Hazard Index was found to be >5 at Site 1 and for much higher metal loads a significant correlation between metal concentrations in plants, bottom sediment and exposure doses were also recorded. Therefore, the peri-urban Purulia Sahebbandh wetland could immediately be considered for risk control and demanded holistic management of important waterfowl habitats.
Collapse
Affiliation(s)
- Arkajyoti Mukherjee
- Department of Chemical Engineering, Jadavpur University, Kolkata 700032, India; Ecotechnology Project Laboratory, Government College of Engineering and Leather Technology, Kolkata 700098, India
| | - Sudin Pal
- Ecotechnology Project Laboratory, Government College of Engineering and Leather Technology, Kolkata 700098, India.
| | - Papita Das
- Department of Chemical Engineering, Jadavpur University, Kolkata 700032, India
| | - Subhra Kumar Mukhopadhyay
- Ecotechnology Project Laboratory, Government College of Engineering and Leather Technology, Kolkata 700098, India
| |
Collapse
|
19
|
Wen M, Ma Z, Gingerich DB, Zhao X, Zhao D. Heavy metals in agricultural soil in China: A systematic review and meta-analysis. ECO-ENVIRONMENT & HEALTH 2022; 1:219-228. [PMID: 38077260 PMCID: PMC10702913 DOI: 10.1016/j.eehl.2022.10.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 10/03/2022] [Accepted: 10/15/2022] [Indexed: 05/27/2024]
Abstract
Research about farmland pollution by heavy metals/metalloids in China has drawn growing attention. However, there was rare information on spatiotemporal evolution and pollution levels of heavy metals in the major grain-producing areas. We extracted and examined data from 276 publications between 2010 and 2021 covering five major grain-producing regions in China from 2010 to 2021. Spatiotemporal evolution characteristics of main heavy metals/metalloids was obtained by meta-analysis. In addition, subgroup analyses were carried out to study preliminary correlations related to accumulation of the pollutants. Cadmium (Cd) was found to be the most prevailing pollutant in the regions in terms of both spatial distribution and temporal accumulation. The Huang-Huai-Hai Plain was the most severely polluted. Accumulation of Cd, mercury (Hg) and copper (Cu) increased from 2010 to 2015 when compared with the 1990 background data. Further, the levels of five key heavy metals (Cd, Cu, Hg, lead [Pb] and zinc [Zn]) showed increasing trends from 2016 to 2021 in all five regions. Soil pH and mean annual precipitation had variable influences on heavy metal accumulation. Alkaline soil and areas with less rainfall faced higher pollution levels. Farmlands cropped with mixed species showed smaller effect sizes of heavy metals than those with single upland crop, suggesting that mixed farmland use patterns could alleviate the levels of heavy metals in soil. Of various soil remediation efforts, farmland projects only held a small market share. The findings are important to support the research of risk assessment, regulatory development, pollution prevention, fund allocation and remediation actions.
Collapse
Affiliation(s)
- Moyan Wen
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Ziqi Ma
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Daniel B. Gingerich
- Department of Civil, Environmental and Geodetic Engineering, The Ohio State University, Columbus, OH 43210, USA
- Department of Integrated Systems Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Xiao Zhao
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Dongye Zhao
- Environmental Engineering Program, Department of Civil Engineering, Auburn University, Auburn, AL 36849, USA
| |
Collapse
|
20
|
Wang X, Teng Y, Wang X, Xu Y, Li R, Sun Y, Hu W, Zhao L, Ren W, Luo Y. Effects of combined pollution of organic pollutants and heavy metals on biodiversity and soil multifunctionality in e-waste contaminated soil. JOURNAL OF HAZARDOUS MATERIALS 2022; 440:129727. [PMID: 35963091 DOI: 10.1016/j.jhazmat.2022.129727] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/21/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
Electronic waste (e-waste) is increasing globally, but the impact of this source of combined pollution on soil biodiversity and multiple soil functions (i.e., ecosystem multifunctionality) remains unclear. Here, we evaluated the effects of combined pollution on the biodiversity and soil multifunctionality using samples collected from upland and paddy soils chronically contaminated with e-waste. Overall biodiversity, as well as the relative abundance and biodiversity of key ecological clusters, as combined pollution concentrations increased in upland soil, while the opposite was true in paddy soil. Soil multifunctionality followed the same trend. Organic pollutants had significant negative effects on soil multifunctionality and were the main influencing factors in upland soil. Heavy metals had significant positive effects on soil multifunctionality in paddy soil. Moreover, driving soil multifunctionality was overall biodiversity in upland soil but key biodiversity in paddy soil. Importantly, a strong positive association between key organism biodiversity and soil multifunctionality was found in soil with low contamination. However, the relationship between key organism biodiversity and soil multifunctionality weakened or disappeared in highly contaminated soil, whereas overall biodiversity was significantly and positively correlated with multifunctionality. Our results emphasized that severe e-waste contamination would reduce soil biodiversity and soil multifunctionality and warrants high attention.
Collapse
Affiliation(s)
- Xia Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Ying Teng
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
| | - Xiaomi Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Yongfeng Xu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Ran Li
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Yi Sun
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Wenbo Hu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Ling Zhao
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Wenjie Ren
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Yongming Luo
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| |
Collapse
|