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Xiao Y, Luan H, Lu S, Xing M, Guo C, Qian R, Xiao X. Toxic effects of atmospheric deposition in mining areas on wheat seedlings. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:69. [PMID: 38342840 DOI: 10.1007/s10653-024-01869-9] [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: 11/21/2023] [Accepted: 01/11/2024] [Indexed: 02/13/2024]
Abstract
Storage and transportation of coal, as well as operation of coal-fired power plants, produce amounts of metallic exhaust that may lead to different atmospheric environment in the overlapped areas of farmland and coal resource (OAFCR) environment. To investigate the effects of different atmospheric environment in the OAFCR region (north of Xuzhou) on wheat seedlings (AK-58), a box experiment was conducted and compared to an area far from the OAFCR (south of Xuzhou). The study revealed that (1) compared to the southern suburb of Xuzhou, the fresh and dry weight, activities of photosynthetic enzymes and POD of wheat seedlings in the OAFCR reduced obviously. (2) Significantly higher levels of Cr, Cd, Pb, Zn, and Cu were found in the shoots and roots of wheat seedlings in the OAFCR, with lower transfer factor for heavy metals (except Cd and As) in comparison to those in the southern suburb. And the bioconcentration factors of heavy metals (except As) in wheat seedlings in the OAFCR were significantly higher. (3) Nearly 90% of heavy metals (Pb, Cu, Cd, Zn, and Cr) absorbed by wheat were stored in cell walls and soluble fractions, with significantly higher contents of Cu and Cr in wheat seedlings' cell walls and higher contents of Pb, Zn, and Cd in soluble components found in the OAFCR. Our results showed that atmospheric deposition in the mining area has a certain toxic effect on wheat seedlings, and this study provides a theoretical basis for OAFCR crop toxicity management.
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Affiliation(s)
- Yu Xiao
- School of Environment and Spatial Informatics, China University of Mining and Technology, No.1 Daxue Road, Xuzhou, 221116, Jiangsu, China
| | - Huijun Luan
- Geological Survey of Anhui Province (Anhui Institute of Geological Sciences), Hefei, 230001, Anhui, China
| | - Shougan Lu
- Jiangsu Founder Environmental Protection Group Co., Ltd, Xuzhou, 221132, Jiangsu, China
| | - Mingjie Xing
- Tianjin Huankeyuan Environmental Science and Technology Co., Ltd, Tianjin, 300457, China
| | - Chunying Guo
- School of Environment and Spatial Informatics, China University of Mining and Technology, No.1 Daxue Road, Xuzhou, 221116, Jiangsu, China
| | - Ruoxi Qian
- Department of Mathematical and Computational Sciences, University of Toronto, Toronto, L5B 4P2, Canada
| | - Xin Xiao
- School of Environment and Spatial Informatics, China University of Mining and Technology, No.1 Daxue Road, Xuzhou, 221116, Jiangsu, China.
- Observation and Research Station of Jiangsu Jiawang Resource Exhausted Mining Area Land Restoration and Ecological Succession, Ministry of Education, China University of Mining and Technology, Xuzhou, 221116, Jiangsu, China.
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Li B, Song J, Guan M, Chen Z, Tang B, Long Y, Mao R, Zhao J, Xu W, Zhang Y. With spatial distribution, risk evaluation of heavy metals and microplastics to emphasize the composite mechanism in hyporheic sediments of Beiluo River. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132784. [PMID: 37866143 DOI: 10.1016/j.jhazmat.2023.132784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/12/2023] [Accepted: 10/12/2023] [Indexed: 10/24/2023]
Abstract
This study aimed to assess the hazardous impacts of heavy metals (HMs) enrichment on the surface of microplastics (MPs) in the hyporheic zone. The present work analyzed the spatial distribution and risk evaluation of HMs (V, Cr, Mn, Co, Ni, Cu, Zn, As, Cd, and Pb) and MPs and the mechanism of HMs enrichment on MPs in the sediments. The highest rates of contamination were for Cd, Pb, and As. The main types of MPs were fiber, blue, and a size smaller than 500 µm. The lower reaches of the Beiluo River had the most serious HMs and MPs pollution, especially BL-10 (HMs: CF-Cd, 41.91; EF-Cd, 50.87; Igeo-Cd, 4.80; RI, 1291; PN, 29.83; MPs: abundance, 890 ± 18 items/kg). Meanwhile, the principal component analysis showed that natural, industrial activities, and agricultural production and transportation were primary HMs sources in sediments, and Cd, Co, and Pb were the main enriched metals on the surface of MPs. More importantly, regarding the interaction mechanism of these composite pollutants, we concluded that electrostatic adsorption and biofilm mediation were the main mechanisms of the synergistic effect. Overall, our findings provide a theoretical basis for further research on the ecotoxicity of composite pollutants in aquatic environments.
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Affiliation(s)
- Bingjie Li
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
| | - Jinxi Song
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China; Yellow River Institute of Shaanxi Province, Northwest University, Xi'an 710127, China.
| | - Mingchang Guan
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
| | - Zeyu Chen
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
| | - Bin Tang
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
| | - Yongqing Long
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
| | - Ruichen Mao
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
| | - Jiawei Zhao
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
| | - Wenjin Xu
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
| | - Yuting Zhang
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
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Cui W, Li X, Duan W, Xie M, Dong X. Heavy metal stabilization remediation in polluted soils with stabilizing materials: a review. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023:10.1007/s10653-023-01522-x. [PMID: 36906650 DOI: 10.1007/s10653-023-01522-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
The remediation of soil contaminated by heavy metals has long been a concern of academics. This is due to the fact that heavy metals discharged into the environment as a result of natural and anthropogenic activities may have detrimental consequences for human health, the ecological environment, the economy, and society. Metal stabilization has received considerable attention and has shown to be a promising soil remediation option among the several techniques for the remediation of heavy metal-contaminated soils. This review discusses various stabilizing materials, including inorganic materials like clay minerals, phosphorus-containing materials, calcium silicon materials, metals, and metal oxides, as well as organic materials like manure, municipal solid waste, and biochar, for the remediation of heavy metal-contaminated soils. Through diverse remediation processes such as adsorption, complexation, precipitation, and redox reactions, these additives efficiently limit the biological effectiveness of heavy metals in soils. It should also be emphasized that the effectiveness of metal stabilization is influenced by soil pH, organic matter content, amendment type and dosage, heavy metal species and contamination level, and plant variety. Furthermore, a comprehensive overview of the methods for evaluating the effectiveness of heavy metal stabilization based on soil physicochemical properties, heavy metal morphology, and bioactivity has also been provided. At the same time, it is critical to assess the stability and timeliness of the heavy metals' long-term remedial effect. Finally, the priority should be on developing novel, efficient, environmentally friendly, and economically feasible stabilizing agents, as well as establishing a systematic assessment method and criteria for analyzing their long-term effects.
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Affiliation(s)
- Wenwen Cui
- College of Civil Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, Taiyuan, 030024, Shanxi, People's Republic of China
| | - Xiaoqiang Li
- College of Civil Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, Taiyuan, 030024, Shanxi, People's Republic of China
| | - Wei Duan
- College of Civil Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, Taiyuan, 030024, Shanxi, People's Republic of China
| | - Mingxing Xie
- College of Civil Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, Taiyuan, 030024, Shanxi, People's Republic of China
| | - Xiaoqiang Dong
- College of Civil Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, Taiyuan, 030024, Shanxi, People's Republic of China.
- Shanxi Key Laboratory of Civil Engineering Disaster Prevention and Control, No. 79 West Yingze Street, Taiyuan, 030024, Shanxi, People's Republic of China.
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The Effect of Immobilizing Agents on Zn and Cu Availability for Plants in Relation to Their Potential Health Risks. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12136538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Soil contamination with heavy metals is one of the most important threats to the environment because they are easily incorporated into the food chain, threatening the health of plants, animals, and humans. In this study, the effectiveness of the introduced substances (compost and fly ash) was assessed in terms of its influence on the content of Cu and Zn in the soil, potential accumulation of these metals in the cultivated plants (camelina and oat), and thus in food products prepared from these plants. Therefore, the following indicators were used: bioconcentration factors calculated for the total amount (BCFT) and bioavailable amount of metals (BCFB) as well as gender-estimated daily intake (EDI) and health risk index (HRI). Regardless of gender, the EDI values ranged from 0.31 µg·kg−1 to 0.49 µg·kg−1 for Cu and from 0.9 µg·kg−1 to 1.8 µg·kg−1 for Zn in oat. For camelina, the calculated values were as follows: 4.1–8.5 µg·kg−1 for Cu and 7.1–12.1 µg·kg−1 for Zn. The HRI values were very low (in general 0.03–0.2), indicating no health risk connected with potential consumption of oat or camelina food products. The amounts of Cu and Zn in the crops grown on the soil amended with compost or fly ash were significantly lower (by 21–37% for oat and 14–34% for camelina) compared to the content of these metals in the control plants. Moreover, the levels of bioavailable metals decreased in soil as a result of the applied immobilizing agents. The study showed that the immobilization efficiency of compost and fly ash was comparable, and therefore the choice of either of these substances for the chemical remediation of soil contaminated with heavy metals is justified.
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Xu D, Shen Z, Dou C, Dou Z, Li Y, Gao Y, Sun Q. Effects of soil properties on heavy metal bioavailability and accumulation in crop grains under different farmland use patterns. Sci Rep 2022; 12:9211. [PMID: 35654920 PMCID: PMC9163331 DOI: 10.1038/s41598-022-13140-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 05/20/2022] [Indexed: 11/23/2022] Open
Abstract
Mining activities have increased the accumulation of heavy metals in farmland soil and in food crops. To identify the key soil properties influencing heavy metal bioavailability and accumulation in food crops, 81 crop samples and 81 corresponding agricultural soil samples were collected from rape, wheat, and paddy fields. Heavy metal (copper (Cu), zinc (Zn), lead (Pb), cadmium (Cd), iron (Fe), and manganese (Mn)) concentrations in soils and rape, wheat, rice grains were determined using inductively coupled plasma atomic emission spectroscopy, and soil physicochemical properties (pH, organic matter, total nitrogen, total phosphorus, available phosphorus, and available potassium (AK)) were analyzed. Soil extractable metals were extracted using various single extractants (DTPA, EDTA, NH4OAc, NH4NO3, and HCl). The average concentrations of Cu, Zn, Pb, Cd, and Mn in the soil samples all exceeded the local geochemical background value (background values of Cu, Zn, Pb, Cd, and Mn are 43.0, 81.0, 28.5, 0.196, and 616 mg/kg, respectively), and Cd over-standard rate was the highest, at 98%. Furthermore, soil total Cd concentrations (0.1–24.8 mg/kg) of more than 86% of the samples exceeded the soil pollution risk screening value (GB 15618-2018). The sources of Cu, Zn, Pb, Cd, and Mn in soils were mainly associated with mining activities. The key factors influencing heavy metal bioavailability were associated with the types of extractants (complexing agents or neutral salt extractants) and the metals. Cd and Pb concentrations in most wheat and rice grain samples exceeded the maximum allowable Cd and Pb levels in food, respectively, and Cd concentrations in approximately 10% of the rice grain samples exceeded 1.0 mg/kg. Furthermore, rice and wheat grains exhibited higher Cd accumulation capacity than rape grains, and despite the high soil Cd concentrations in the rape fields, the rape grains were safe for consumption. High soil pH and AK restricted Cd and Cu accumulation in wheat grains, respectively. Soil properties seemed to influence heavy metal accumulation in rice grains the most.
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Affiliation(s)
- Decong Xu
- School of Life Science, Hefei Normal University, Hefei, 230061, China.,School of Resources and Environmental Engineering, Anhui University, Hefei, 230061, China
| | - Zhangjun Shen
- School of Life Science, Hefei Normal University, Hefei, 230061, China
| | - Changming Dou
- Anhui Academy of Environmental Sciences, Hefei, 230061, China
| | - Zhiyong Dou
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230061, China
| | - Yang Li
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230061, China
| | - Yi Gao
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230061, China
| | - Qingye Sun
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230061, China.
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Liu H, Wang Y, Pang S, Wang X, He J, Zhang J, Rodriguez-Dono A. Mining footprint of the underground longwall caving extraction method: A case study of a typical industrial coal area in China. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:127762. [PMID: 34857402 DOI: 10.1016/j.jhazmat.2021.127762] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/28/2021] [Accepted: 11/09/2021] [Indexed: 06/13/2023]
Abstract
Longwall caving mining (LCM) can lead to many environmental problems that have drawn worldwide attention. A previous survey found that most scholars tend to analyze the two issues separately, that is, coal mining-induced subsidence and heavy metal pollution sources in the soil of the mining regions. Based on field monitoring as well as the collection and analysis of soil samples, a previous study estimated ground settlement and analyzed the surface subsidence law and spatial distribution characteristics of heavy metals in soils. Moreover, a geographic information system was combined with multivariate statistical analysis methods to analyze the heavy metal pollution sources in soils. At the same time, the mechanism of heavy metal accumulation in the subsidence area was analyzed. The study found that the most active subsidence of settlement was 137.5 m behind the workface and moved forward with the workface. LCM has already caused significant disturbance to the soils in the Hengyuan Mine. Moreover, the distribution pattern of eight heavy metals was consistent with the surface subsidence law. The sources of heavy metal pollution in the soils were also identified; namely, coal mining-induced subsidence (64.1%) and mixed transportation and wind-mediated spread (35.9%), offering a reinterpretation of the LCM's footprint.
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Affiliation(s)
- Hengfeng Liu
- Key Laboratory of Coal Resources and Mineral Resources, Jiangsu Design Institute of Geology for Mineral Resources (Testing Center of China National Administration of Coal Geology), China National Administration of Coal Geology, Xuzhou 221116, China; State Key Laboratory of Coal Resources and Safe Mining, School of Mines, China University of Mining and Technology, Xuzhou 221116, China; Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya (UPC), 08034, Spain.
| | - Yanjun Wang
- Key Laboratory of Coal Resources and Mineral Resources, Jiangsu Design Institute of Geology for Mineral Resources (Testing Center of China National Administration of Coal Geology), China National Administration of Coal Geology, Xuzhou 221116, China.
| | - Shun Pang
- Key Laboratory of Coal Resources and Mineral Resources, Jiangsu Design Institute of Geology for Mineral Resources (Testing Center of China National Administration of Coal Geology), China National Administration of Coal Geology, Xuzhou 221116, China; State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, China.
| | - Xinfu Wang
- Key Laboratory of Coal Resources and Mineral Resources, Jiangsu Design Institute of Geology for Mineral Resources (Testing Center of China National Administration of Coal Geology), China National Administration of Coal Geology, Xuzhou 221116, China.
| | - Jianguo He
- Key Laboratory of Coal Resources and Mineral Resources, Jiangsu Design Institute of Geology for Mineral Resources (Testing Center of China National Administration of Coal Geology), China National Administration of Coal Geology, Xuzhou 221116, China.
| | - Jixiong Zhang
- State Key Laboratory of Coal Resources and Safe Mining, School of Mines, China University of Mining and Technology, Xuzhou 221116, China.
| | - Alfonso Rodriguez-Dono
- Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya (UPC), 08034, Spain; Institute of Environmental Assessment and Water Research (IDAEA), Spanish National Research Council (CSIC), 08034, Spain.
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7
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Wang Y, Xu W, Li J, Song Y, Hua M, Li W, Wen Y, Li T, He X. Assessing the fractionation and bioavailability of heavy metals in soil-rice system and the associated health risk. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2022; 44:301-318. [PMID: 33761034 DOI: 10.1007/s10653-021-00876-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 03/08/2021] [Indexed: 06/12/2023]
Abstract
This study developed a method to build relationships between chemical fractionations of heavy metals in soils and their accumulations in rice and estimate the respective contribution of each geochemical speciation in the soils from the Yangtze River Delta, China. In contaminated areas, residue and humic acid-bound fractions in soils were the main phases for most heavy metals. The mobility of heavy metals was in this following order: Cd > Pb ≈ Zn > Ni > As ≈ Cr > Hg. Transfer factors calculated by the ratios of specific fractionations of heavy metals in the soil-rice system were used to assess the capability of different metal speciation transfer from soil to rice. The carbonate and Fe/Mn oxyhydroxides bound phase had significant positive correlations with total metal concentrations in rice. Hg uptake by rice might be related to the exchangeable and carbonate-bound fractions of soil Hg. Results of PCA analysis of transfer factors estimated that the labile fractions (i.e. water soluble, exchangeable and carbonate bound) contributed more than 40% of the heavy metal accumulations in rice. Effect of organic matter and residue fraction on metals transfer was estimated to be ~ 25 to ~ 30% while contribution of humic acid and Fe/Mn oxyhydroxides-bound fractions was estimated to be ~ 20 to ~ 30%. Modified risk assessment code (mRAC) and ecological contamination index (ECI) confirmed that the soil samples were polluted by heavy metals. Soil Cd contributed more than 80% of mRAC. Contrarily, the main contributors to ECI were identified as As, Hg, Pb and Zn. The average values of total target hazard quotient (TTHQ) and Risktotal were above 1 and 10-4 respectively, implying people living in the study area were exposed to both non-carcinogenic and carcinogenic risk. As and Pb were the main contributor to high TTHQ value while As, Cd and Cr in rice contributed mostly to Risktotal value. Spatial changes of ecological risk indexes and human health risk indexes showed that the samples with high TTHQ values distributed in the area with high values of mRAC. Likewise, the area with high ECI values and with high carcinogenic risk overlapped.
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Affiliation(s)
- Yuanyuan Wang
- Geological Survey of Jiangsu Province, Nanjing, 210018, China
| | - Weiwei Xu
- Geological Survey of Jiangsu Province, Nanjing, 210018, China
| | - Jizhou Li
- Department of Geosciences, Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Yinxian Song
- Department of Geosciences, Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming, 650093, China.
| | - Ming Hua
- Geological Survey of Jiangsu Province, Nanjing, 210018, China
| | - Wenbo Li
- Geological Survey of Jiangsu Province, Nanjing, 210018, China
| | - Yubo Wen
- Key Laboratory of Surficial Geochemistry, School of Earth Sciences and Engineering, Nanjing University, Ministry of Education, Nanjing, 210093, China
| | - Tianyuan Li
- Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China.
| | - Xinxing He
- Geological Survey of Jiangsu Province, Nanjing, 210018, China
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Yang YY, Zhang JX, Xiao X, Du M, Luan HJ, Yu QX, Liang Y. Speciation and Potential Ecological Risk of Heavy Metals in Soils from Overlapped Areas of Farmland and Coal Resources in Northern Xuzhou, China. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 107:1053-1058. [PMID: 33646317 DOI: 10.1007/s00128-021-03148-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 02/05/2021] [Indexed: 06/12/2023]
Abstract
Contamination caused by heavy metals (HMs) in soil of overlapped area of farmland and coal resources (OAFCR) has impact on crops. The concentrations and speciation of As, Cd, Cr, Cu, Pb and Zn were investigated in topsoil of an OAFCR in Xuzhou, China. The results showed that mean concentrations of all six metals were higher than the background values of Xuzhou city and Cd was moderate accumulated with the maximum Igeo equalled to 2.13. Cd showed moderate contamination level (IPi = 1.75) and potential ecological risk (Er = 44.06). Most of the total Cr, Cu, Ni, Pb, and Zn were presented in the residual forms (above 60%), and the percentages of reducible, oxidisable and residual forms of Pb were 23%, 21% and 43% respectively. Pb and Cd reflected a moderate degree of potential ecological risk and a considerable migration risk and ecotoxicity.
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Affiliation(s)
- Y Y Yang
- School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou, China
| | - J X Zhang
- School of Mines, China University of Mining and Technology, Xuzhou, China
| | - X Xiao
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, 1 Daxue Road, Xuzhou, 221116, Jiangsu, China.
| | - M Du
- China Bluestar Lehigh Engineering Corp., Lianyungang, China
| | - H J Luan
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, 1 Daxue Road, Xuzhou, 221116, Jiangsu, China
| | - Q X Yu
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, 1 Daxue Road, Xuzhou, 221116, Jiangsu, China
| | - Y Liang
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, 1 Daxue Road, Xuzhou, 221116, Jiangsu, China
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Liang Y, Zhang J, Xiao X, Xing M, Lu Y, Wang L. Risk Assessment of Heavy Metals in Overlapped Areas of Farmland and Coal Resources in Xuzhou, China. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 107:1065-1069. [PMID: 34333677 DOI: 10.1007/s00128-021-03337-x] [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: 12/30/2020] [Accepted: 07/12/2021] [Indexed: 06/13/2023]
Abstract
Heavy metals (As, Cu, Cd, Cr, Pb, Zn, Hg) in soil of a typical overlapped area of farmland and coal resources (OAFCR) in Xuzhou were investigated, meanwhile the pollution levels and risks of there were discussed. The results are: Pollution Load Index (PLI) showed no heavy metals (HMs) pollution; 3.74% of soil samples were above moderately accumulated with Hg; the ecological risk (Er) values followed the order: Hg > Cd > Cu > As > Pb > Cr > Zn, and there has a moderate degree of potential ecological risk (PER) with the mean PER of 184.26; the non-carcinogenic risk of all seven HMs to human beings is acceptable, and the carcinogenic risk caused by As, Cd and Cr can be tolerated; the exposure ways both of carcinogenic and non-carcinogenic is: oral > dermal > inhalation, while children are suffering higher health risks than adults.
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Affiliation(s)
- Yan Liang
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, 1 Daxue Road, Xuzhou, 221116, Jiangsu, China
| | - Jixiong Zhang
- School of Mines, China University of Mining and Technology, Xuzhou, China
| | - Xin Xiao
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, 1 Daxue Road, Xuzhou, 221116, Jiangsu, China.
| | - Mingjie Xing
- Tianjin Huankeyuan Environmental Protection Technology Co., LTD., Tianjin, China
| | - Yin Lu
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, 1 Daxue Road, Xuzhou, 221116, Jiangsu, China
| | - Li Wang
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, 1 Daxue Road, Xuzhou, 221116, Jiangsu, China
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Tudi M, Ruan HD, Yu Y, Wang L, Wei B, Tong S, Kong C, Yang LS. Bioaccumulation and translocation of trace elements in soil-irrigation water-wheat in arid agricultural areas of Xin Jiang, China. ECOTOXICOLOGY (LONDON, ENGLAND) 2021; 30:1290-1302. [PMID: 32860622 DOI: 10.1007/s10646-020-02267-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/10/2020] [Indexed: 06/11/2023]
Abstract
Pollution resulting from toxic trace elements is an increasing concern around the world especially in developing countries such as China. Rapid industrialisation, urbanisation and agricultural development are the dominant sources of anthropogenic contamination contributed to an increased potential toxicity of trace elements in the irrigation water-soil-food chain. Xin Jiang in China is a reserved cultivated land development area that could provide the most extensive strategic support for food production and arable land security in China. Thus, it is crucial to investigate the bioaccumulation and translocation of trace elements in order to assess the ecological and human health risks in the traditional oasis system of the agricultural areas in Bay Cheng County, Xin Jiang. This study analysed the levels of trace elements in different layers of the soil, the irrigation water and the wheat plants, and the relationships among them. The results indicated that cadmium (Cd) and chromium (Cr) were the primary pollutants in soils and wheats respectively, and they fell into the serious pollution category. However, no trace elements over the pollution limits were detected in irrigation water. The maximum values of trace elements appeared in the soil layers at 5-10 cm and 10-15 cm. The pollution levels of trace elements in the soil layers were found at 0-5 cm and 0-20 cm, which were higher than those at 20-80 cm. In wheat, high amounts of absorption for Se, Cr, Zn and Cu, but low for Pb were detected in different parts of a plant. The roots of wheats were more eco-toxic to Cd, Co and Pb than other tissues, indicating that roots were more effective at absorbing Cd, Co and Pb, as these metals are usually toxic in the soil. Se, Cu and Zn showed a higher ability of being transferred from soils to the edible parts of crops. The bio-transfer factors of Zn, Mo, Cu, Mg and Mn were considerably higher than those of other elements. The average cancer risk of As, Cd, Co, Ni and TCR in wheat grains exceeded the safety reference limit (1 × 10-4). For the exposed population, Cr in wheat was the major contributor to total cancer risk. The average values of HQ of Cr, Mn and As, and total non-cancer risk index exceeded the corresponding effective safe reference doses (HQ > 1).
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Affiliation(s)
- Muyesaier Tudi
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, 100101, Beijing, China
- Centre for Environment and Population Health, Griffith University, 170 Kessel Road, Nathan, QLD, 4111, Australia
- School of Medicine, Griffith University, 170 Kessel Road, Nathan, QLD, 4111, Australia
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Huada Daniel Ruan
- School of Medicine, Griffith University, 170 Kessel Road, Nathan, QLD, 4111, Australia
- Beijing Normal University-Hong Kong Baptist University United International College, 2000 Jintong Road, Tangjiawan, Zhuhai, Guangdong Province, China
| | - Yunjiang Yu
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou, 510655, China
| | - Li Wang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, 100101, Beijing, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Binggan Wei
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, 100101, Beijing, China
| | - Shuangmei Tong
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, 100101, Beijing, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Chang Kong
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, 100101, Beijing, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Lin-Sheng Yang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, 100101, Beijing, China.
- University of Chinese Academy of Sciences, 100049, Beijing, China.
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11
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Xu D, Zhou Z, Zhan C, Liu S, Zhang J, Liu H, Liu Z, Liu X. Pollution Characteristics and Associated Risk Assessment of Heavy Metals in Farmland Soils From a Typical County of Hubei Province, Central China. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 107:327-335. [PMID: 34309685 DOI: 10.1007/s00128-021-03303-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 06/09/2021] [Indexed: 06/13/2023]
Abstract
Knowledge from the negative impacts of the counties' anthropogenic activities on soil pollution was of great significance in China, and valuable information was urgently needed for the control and remediation of soil pollution. The current pollution levels of heavy metals (Cu, Pb, Cd, Zn, Ni, and Cr) in farmland soils were investigated in Yangxin County, Hubei Province, central China. The comprehensive results of quantitative comparison and evaluation in this study showed that Cu (144.9 ± 298.6 mg kg-1), Cd (2.9 ± 1.6 mg kg-1), and Ni (137.0 ± 111.0 mg kg-1) posed higher pollution risks to public and ecosystem health, which were higher than the corresponding soil background values. The combined results of geostatistics, spatial and statistical analysis indicated that studied heavy metals were mainly attributed to agricultural, traffic and industrial induced pollution. Overall, urgent attention should be paid to the risk reduction and management of soil Cu, Cd, and Ni pollution in the study area.
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Affiliation(s)
- Damao Xu
- Hubei Key Laboratory of Mine Environmental Pollution Control & Remediation, School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi, 435003, China
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Zhishuang Zhou
- Hubei Key Laboratory of Mine Environmental Pollution Control & Remediation, School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi, 435003, China
| | - Changlin Zhan
- Hubei Key Laboratory of Mine Environmental Pollution Control & Remediation, School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi, 435003, China.
| | - Shan Liu
- Hubei Key Laboratory of Mine Environmental Pollution Control & Remediation, School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi, 435003, China
| | - Jiaquang Zhang
- Hubei Key Laboratory of Mine Environmental Pollution Control & Remediation, School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi, 435003, China
| | - Hongxia Liu
- Hubei Key Laboratory of Mine Environmental Pollution Control & Remediation, School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi, 435003, China
| | - Ziguo Liu
- Hubei Key Laboratory of Mine Environmental Pollution Control & Remediation, School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi, 435003, China.
| | - Xianli Liu
- Hubei Key Laboratory of Mine Environmental Pollution Control & Remediation, School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi, 435003, China
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12
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Lewis C, Lennon AM, Eudoxie G, Sivapatham P, Umaharan P. Plant metal concentrations in Theobroma cacao as affected by soil metal availability in different soil types. CHEMOSPHERE 2021; 262:127749. [PMID: 32805655 DOI: 10.1016/j.chemosphere.2020.127749] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/13/2020] [Accepted: 07/14/2020] [Indexed: 06/11/2023]
Abstract
Beans of cacao (Theobroma cacaoL.) are used to produce a variety of chocolate products. Bioaccumulation of metals at toxic levels through the consumption of contaminated products has been identified as a health concern in humans. Both metal diversity and concentration as well as their interactions in the soil influence essential and non-essential metal uptake in plants; but the effects of these on bioaccumulation of metals in cacao is not understood across diverse soil types. In this study eight metals (Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn) were investigated in 12 soil subgroups belonging to four soil orders across 15 locations in Trinidad, with the aim to investigate the effect of soil metal diversity and concentration on metal bioaccumulation in cacao. Soil metals were extracted using five methods (aqua regia, DTPA, Mehlich 3, nitric acid, and water). Cacao leaf metal concentrations were determined using the USEPA 3052 method. Metal extraction efficiency ranged between methods with aqua regia ≥ nitric acid > Mehlich 3 ≥ DTPA ≥ water across all metals. The soil extraction method that best predicted cacao leaf metal concentrations varied with the metal - Mehlich 3 or DTPA for Cd, Ni, Zn; aqua regia, Mehlich 3, or nitric acid for Pb, and water for Mn. A stepwise regression analysis showed that plant metal concentration can be predicted using soil physicochemical characteristics as well as the concentration of metals in the soil. The importance of soil type on cacao leaf metal bioaccumulation is discussed.
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Affiliation(s)
- Caleb Lewis
- Cocoa Research Centre, The University of the West Indies, St. Augustine Campus, Trinidad and Tobago; Department of Life Sciences, Faculty of Science and Technology, The University of the West Indies, St. Augustine Campus, Trinidad and Tobago
| | - Adrian M Lennon
- Department of Life Sciences, Faculty of Science and Technology, The University of the West Indies, St. Augustine Campus, Trinidad and Tobago
| | - Gaius Eudoxie
- Department of Food Production, Faculty of Food and Agriculture, The University of the West Indies, St. Augustine Campus, Trinidad and Tobago
| | | | - Pathmanathan Umaharan
- Cocoa Research Centre, The University of the West Indies, St. Augustine Campus, Trinidad and Tobago.
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13
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Wang Z, Xiao J, Wang L, Liang T, Guo Q, Guan Y, Rinklebe J. Elucidating the differentiation of soil heavy metals under different land uses with geographically weighted regression and self-organizing map. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 260:114065. [PMID: 32041011 DOI: 10.1016/j.envpol.2020.114065] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/07/2020] [Accepted: 01/23/2020] [Indexed: 06/10/2023]
Abstract
Intensive anthropogenic activity has triggered serious heavy metal contamination of soil. Land use and land cover (LULC) changes bear significant impacts, either directly or indirectly, on the distribution of heavy metal in soils. A total of 180 samples were acquired from various land covers at different depths, namely surface soils (020 cm) and subsurface soils (20-40 cm). Spatial interpolation, geographically weighted regression (GWR) and self-organizing map (SOM) were used to discern how variations in the spatial distributions of soil heavy metals were caused by human activities for different land uses, and how these pollutants contributed to environmental risks. The medium concentrations of Cd, Cr, Cu, Pb and Zn in surface soil all exceeded the corresponding local background values in flat cropland and developed area soil. The overall ecological risk level of the study varied from low to medium. The GWR model indicated that the land use intensity had a certain influence on the accumulation of heavy metals in the surface soil. K-means clustering of the SOM revealed that the type of LULC also contributed to the redistribution of heavy metals in the surface soil.
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Affiliation(s)
- Zhan Wang
- East China University of Technology, Nanchang, 330000, China; Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Jun Xiao
- State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China
| | - Lingqing Wang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Tao Liang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Qingjun Guo
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Yunlan Guan
- East China University of Technology, Nanchang, 330000, China
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany; Department of Environment, Department of Environment and Energy, Sejong University, Seoul, 05006, Republic of Korea
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14
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Xiao X, Zhang J, Wang H, Han X, Ma J, Ma Y, Luan H. Distribution and health risk assessment of potentially toxic elements in soils around coal industrial areas: A global meta-analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 713:135292. [PMID: 32019003 DOI: 10.1016/j.scitotenv.2019.135292] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/30/2019] [Accepted: 10/28/2019] [Indexed: 05/06/2023]
Abstract
Coal production and utilization are recognized as two principal sources of potentially toxic elements in the environment. Here the published literature (2008-2018) was searched to collect data on As, Ni, Cd, Cu, Cr, Hg, Pb and Zn concentrations in soils near different types of coal industrial areas such as coal mines, thermal power plants, coal chemical plants, coal mining cities and coal waster piles. The contamination levels of soils and associated health risks were assessed using global reference materials and multiple contamination indices. The results revealed that average concentrations of potentially toxic elements varied widely, yet most of them exceeded global averages in background soils and upper continental crust concentrations. Spatial distribution analysis suggested the concentrations of potentially toxic elements varied according to coalification and combustion conditions. Higher concentrations were found in Southeast Asia, South Europe, and North Africa compared with other regions. Assessment of the geoaccumulation index revealed that contamination levels of Cd and Hg were higher than those of other elements. In particular, Ni, Cd, Zn, and Hg were most likely to accumulate in soils near coal mining areas, while Cd and Hg tended to accumulate near coal chemical plants. Regarding non-carcinogenic risks, oral ingestion was the major pathway of exposure to potentially toxic elements in coal industry-associated soils, followed by dermal contact and inhalation. Tolerable non-carcinogenic risk of potentially toxic elements and relatively high carcinogenic risks of As were observed. Children were most vulnerable to non-carcinogenic risks, while the carcinogenic risks estimated for adult and children populations were similar. Accordingly, As should be designated as top candidates for priority control to protect human health in the vicinity of coal industry-associated areas. This study provides timely information for developing control and management strategies to reduce soil contamination by potentially toxic elements in different types of coal industrial areas.
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Affiliation(s)
- Xin Xiao
- Jiangsu Key Laboratory of Resources and Environmental Information Engineering, Xuzhou, Jiangsu 221116, China; School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Jixiong Zhang
- School of Mines, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Hui Wang
- Jiangsu Key Laboratory of Resources and Environmental Information Engineering, Xuzhou, Jiangsu 221116, China; School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China.
| | - Xiaoxun Han
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Jing Ma
- Low Carbon Energy Institute, China University of Mining and Technology, Xuzhou, Jiangsu 221008, China
| | - Yu Ma
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Huijun Luan
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
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