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Kumar S, Saxena A, Srivastava RK, Singh SB, Ram RN, Ganie PA, Posti R, Pandey N. Composition of heavy metals in sediment, water, and fish of the Ganga and Yamuna Rivers in two major cities of India. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:612. [PMID: 38869675 DOI: 10.1007/s10661-024-12777-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 06/06/2024] [Indexed: 06/14/2024]
Abstract
The rapid industrial development in the Indian capital region has led to significant waste generation, which, despite undergoing treatment prior to disposal, contributes substantially to water body contamination. Given the diverse nature of these wastes and their potential repercussions across the food chain, a study was conducted to evaluate heavy metal contamination levels in the Ganga and Yamuna Rivers of two major cities. Six heavy metals (Pb, Cd, Hg, Cu, Cr, and Zn) were analyzed in fish, water, and sediment samples by utilizing flame atomic absorption spectrophotometry (Avanta Σ) from March 2019 to February 2020. Results revealed distinct heavy metal distribution patterns, with Cr > Zn > Pb > Cu > Cd > Hg in the Ganga River and Zn > Cr > Pb > Cu > Cd > Hg in the Yamuna River for fish samples. Additionally, levels of Hg in Cyprinus carpio and Sperata oar from the Ganga River, and Pb, Cd, Hg, and Cr in Salmophasia bacaila and Mystus cavasius from the Yamuna River exceeded WHO/FAO permissible limits. In water samples, the predominant heavy metal sequences were Pb > Cu > Zn > Cr > Cd > Hg for the Ganga River and Cr > Zn > Pb > Cu > Cd > Hg for the Yamuna River, with Pb, Cr, Zn, and Cd surpassing WHO standards. Sediment analysis revealed varying heavy metal compositions, with Zn > Cr > Pb > Cu > Cd > Hg in the Ganga River and Cr > Zn > Pb > Cu > Cd > Hg in the Yamuna River. While drinking water and fish from the Ganga River were deemed safe for consumption, those from the Yamuna River were not. Given the toxic nature of heavy metals and their detrimental health impacts, regular monitoring and effective management strategies are imperative.
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Affiliation(s)
- Sumit Kumar
- ICAR-Directorate of Coldwater Fisheries Research, Bhimtal, Uttarakhand, India.
| | - Amita Saxena
- Department of Fisheries Resource Management, College of Fisheries, G.B.Pant, University of Agriculture and Technology, Udham Singh Nagar, Pantnagar, Uttarakhand, India
| | - Rajeev Kumar Srivastava
- Department of Environmental Sciences, College of Basic Science and Humanities, G.B.Pant, University of Agriculture and Technology, Udham Singh Nagar, Pantnagar, Uttarakhand, India
| | - Suraj Bhan Singh
- Department of Mathematics, Statistics and Computer Sciences, College of Basic Science and Humanities, G.B.Pant, University of Agriculture and Technology, Udham Singh Nagar, Pantnagar, Uttarakhand, India
| | - Raj Narayan Ram
- Department of Mathematics, Statistics and Computer Sciences, College of Basic Science and Humanities, G.B.Pant, University of Agriculture and Technology, Udham Singh Nagar, Pantnagar, Uttarakhand, India
| | - Parvaiz Ahmad Ganie
- ICAR-Directorate of Coldwater Fisheries Research, Bhimtal, Uttarakhand, India
| | - Ravindra Posti
- ICAR-Directorate of Coldwater Fisheries Research, Bhimtal, Uttarakhand, India
| | - Nityanand Pandey
- ICAR-Directorate of Coldwater Fisheries Research, Bhimtal, Uttarakhand, India
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Anjum S, Sarwar M, Ali Q, Alam MW, Manzoor MT, Mukhtar A. Assessment of bioremediation potential of Calotropis procera and Nerium oleander for sustainable management of vehicular released metals in roadside soils. Sci Rep 2024; 14:8920. [PMID: 38637588 PMCID: PMC11026540 DOI: 10.1038/s41598-024-58897-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 04/04/2024] [Indexed: 04/20/2024] Open
Abstract
Land transportation is a major source of heavy metal contamination along the roadside, posing significant risks to human health through inhalation, oral ingestion, and dermal contact. Therefore, this study has been designed to determine the concentrations of vehicular released heavy metals (Cd, Pb, Ni, and Cu) in roadside soil and leaves of two commonly growing native plant species (Calotropis procera and Nerium oleander).Two busy roads i.e., Lahore-Okara road (N-5) and Okara-Faisalabad roads (OFR) in Punjab, Pakistan, were selected for the study. The data were collected from five sites along each road during four seasons. Control samples were collected ~ 50 m away from road. The metal content i.e. lead (Pb), cadmium (Cd) nickel (Ni) and copper (Cu) were determined in the plant leaves and soil by using Atomic Absorption Spectrophotometer (AAS). Significantly high amount of all studied heavy metals were observed in soil and plant leaves along both roads in contrast to control ones. The mean concentration of metals in soil ranged as Cd (2.20-6.83 mg/kg), Pb (4.53-15.29 mg/kg), Ni (29.78-101.26 mg/kg), and Cu (61.68-138.46 mg/kg) and in plant leaves Cd (0.093-0.53 mg/kg), Pb (4.31-16.34 mg/kg), Ni (4.13-16.34 mg/kg) and Cu (2.98-32.74 mg/kg). Among roads, higher metal contamination was noted along N-5 road. Significant temporal variations were also noted in metal contamination along both roads. The order of metal contamination in soil and plant leaves in different seasons was summer > autumn > spring > winter. Furthermore, the metal accumulation potential of Calotropis procera was higher than that of Nerium oleander. Therefore, for sustainable management of metal contamination, the plantation of Calotropis procera is recommended along roadsides.
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Affiliation(s)
- Sumreen Anjum
- Institute of Botany, Faculty of Life Sciences, University of the Punjab, Lahore, 54590, Pakistan.
| | - Mubeen Sarwar
- Department of Horticulture, University of the Punjab, Lahore, 54590, Pakistan
| | - Qurban Ali
- Department of Plant Breeding and Genetics, University of the Punjab, Lahore, 54590, Pakistan.
| | | | | | - Adnan Mukhtar
- Department of Food Science, University of Agriculture, Faisalabad, Suib-Campus Depalpur Okara, Okara, Pakistan
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Fang S, Fang Z, Hua C, Zhu M, Tian Y, Yong X, Yang J, Ren L. Distribution, sources, and risk analysis of heavy metals in sediments of Xiaoqing River basin, Shandong province, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:112445-112461. [PMID: 37831261 DOI: 10.1007/s11356-023-30239-8] [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: 07/26/2023] [Accepted: 09/29/2023] [Indexed: 10/14/2023]
Abstract
The accumulation of heavy metals in river sediment poses a major threat to ecological safety. The Xiaoqing River originates in western Jinan, with higher population density and per capita gross domestic product (GDP) in its basin compared to the Shandong province average. This study analyzed the spatial characteristics, ecological risk, human health risk, and contamination sources of heavy metals by collecting sediment samples from Xiaoqing River. We use the methods such as geo-accumulation index (Igeo), ecological risk assessment based on the interval number sorting method, and health risk assessment to evaluate the risk of heavy metals in sediments. The research finding suggests heavy metals including Pb, As, Ni, and Cr are low ecological risks, while Hg and Cd have reached high and extreme ecological risks. Correlation analysis and principal component analysis were used to analyze the correlation and sources of different heavy metals. The six heavy metals were categorized into three groups. Factor 1, comprising Hg, Cr, and Pb, was identified as a mixed source with a contribution rate of 37.76%. Factor 2 is an agricultural source and comprises Ni, Cd, and As with a contribution rate of 27.05%. Factor 3 includes Pb and Ni contributing to 15.30% as a natural source. This study offers valuable insights for the prevention of heavy metal pollution, as well as promoting sustainable urban development.
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Affiliation(s)
- Shumin Fang
- School of Environmental Science and Engineering, Shandong University, Shandong Province, 72# Binhai Road, Jimo, 266235, People's Republic of China
| | - Zhaotong Fang
- School of Environmental Science and Engineering, Shandong University, Shandong Province, 72# Binhai Road, Jimo, 266235, People's Republic of China
| | - Chunyu Hua
- School of Environmental Science and Engineering, Shandong University, Shandong Province, 72# Binhai Road, Jimo, 266235, People's Republic of China
| | - Mengyuan Zhu
- School of Environmental Science and Engineering, Shandong University, Shandong Province, 72# Binhai Road, Jimo, 266235, People's Republic of China
| | - Yueru Tian
- School of Environmental Science and Engineering, Shandong University, Shandong Province, 72# Binhai Road, Jimo, 266235, People's Republic of China
| | - Xian Yong
- School of Environmental Science and Engineering, Shandong University, Shandong Province, 72# Binhai Road, Jimo, 266235, People's Republic of China
| | - Jiaying Yang
- School of Environmental Science and Engineering, Shandong University, Shandong Province, 72# Binhai Road, Jimo, 266235, People's Republic of China
| | - Lijun Ren
- School of Environmental Science and Engineering, Shandong University, Shandong Province, 72# Binhai Road, Jimo, 266235, People's Republic of China.
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Yushin N, Jakhu R, Chaligava O, Grozdov D, Zinicovscaia I. Natural and anthropogenic radionuclides concentration with heavy metals analysis of the sediments collected around Novaya Zemlya. MARINE POLLUTION BULLETIN 2023; 194:115346. [PMID: 37536080 DOI: 10.1016/j.marpolbul.2023.115346] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/14/2023] [Accepted: 07/24/2023] [Indexed: 08/05/2023]
Abstract
The Dispersal profile of the radioisotopes (226Ra, 232Th, 235U, 40K, 137Cs) along with potentially toxic elements (Cd, Co, Cr, Cu, Ni, Pb, V, Zn, and Hg) in the sediments around the Novaya Zemlya was determined. The task was fulfilled with the aid of HPGe gamma spectrometry, inductively coupled plasma optical emission spectroscopy, DMA-80 Direct Mercury Analysis System, X-ray diffraction and statistical tools. At most of the locations, the radionuclides activity was higher than the world average activity concentration for the respective nuclei, 40K being the most abundant. From all the potentially toxic elements detected, Cr and Ni were usually observed on higher levels compared to their background values, indicating the probability of the detrimental biological effects. Thus, the present situation at the studied area might be a threat to the neighboring marine life.
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Affiliation(s)
- Nikita Yushin
- Joint Institute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Russia
| | - Rajan Jakhu
- Joint Institute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Russia.
| | - Omari Chaligava
- Joint Institute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Russia; Faculty of Informatics and Control Systems, Georgian Technical University, 77 Merab Kostava Street, 0171 Tbilisi, Georgia
| | - Dmitrii Grozdov
- Joint Institute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Russia
| | - Inga Zinicovscaia
- Joint Institute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Russia; Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, 30 Reactorului Str., Magurele, Romania
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Mao L, Wang R, Kang K, Li F, Zhang Z, Che Q, Tang Q. Improved Method of Background Value Determination for Sb and Cd in Freshwater Sediment-Insights from Controlling Factors on Spatial Variability. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:4465. [PMID: 36901474 PMCID: PMC10001654 DOI: 10.3390/ijerph20054465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 02/26/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
Variability in the distribution of natural total Sb and Cd in freshwater sediments leads to difficulties in background value (BV) determination. This study aimed to establish a method to determine BV more accurately by investigating the vertical distribution of Sb and Cd in sediment cores collected from a typical river in alluvial plain in China and revealed the factors that control the variation of Sb and Cd BV, which has not been studied in alluvial freshwater sediment. The results suggested that uncontaminated samples for BV calculation should be determined by statistical analysis as human and natural disturbance led to high variation in contamination depth, from <5 cm to >55 cm. The sequential chemical extraction method showed a considerable amount of non-residual fractions of Sb and Cd, which accounted for 48% and 43% of the total, respectively. Acid extractable Cd (16%) was associated to the limestone geology in the area. Fine particles which governed by sedimentary environment contained more natural Sb and Cd, as strong positive correlation was found between clay content and Sb concentration (r = 0.89, p < 0.01), as well as Cd concentration (r = 0.54, p < 0.01). Based on these findings, a method combined with standard deviation and geochemical method was established to calculate the BV of Sb and Cd, and counter maps were made to cover the variation of BV in the Taipu river sediment. The pollution level has been evaluated by the geoaccumulation index more accurately.
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Zhou Q, Cui J, Liu Y, Gu L, Teng X, Tang Y. EGCG alleviated Mn exposure-caused carp kidney damage via trpm2-NLRP3-TNF-α-JNK pathway: Oxidative stress, inflammation, and tight junction dysfunction. FISH & SHELLFISH IMMUNOLOGY 2023; 134:108582. [PMID: 36754155 DOI: 10.1016/j.fsi.2023.108582] [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: 11/23/2022] [Revised: 01/29/2023] [Accepted: 02/02/2023] [Indexed: 05/12/2023]
Abstract
Manganese (Mn), an essential trace metal element in organisms. However, with extensive use of Mn in industry and agriculture, Mn becomes a heavy metal pollutant in water. (-)-epigallocatechin gallate (EGCG), an tea polyphenols, can alleviate metal toxicity. Kidney is an important detoxifying organ, but toxic mechanism of Mn to kidneys is unclear, which needs further research. Carp is an Asian important economical species for fisheries and a biological model for studying environmental toxicology. Thus, we established excess Mn and EGCG-supplemented carp model to explore molecular mechanism of EGCG alleviating Mn-caused carp kidney damage. In this experiment, we set a control group (the Con group), a Mn treatment group (the Mn group, 90 mg/L Mn), a EGCG supplement group (the EG group, 75 mg/kg EGCG), and a combined group (the Mn + EG group, 90 mg/L Mn and 75 mg/kg EGCG). Transcriptome, qRT-PCR, kit, and morphology method results indicated that excess Mn caused oxidative stress, inflammatory damage, and tight junction dysfunction in carp kidneys. Excess Mn-triggered oxidative stress caused tight junction dysfunction via trpm2-NLRP3-TNF-α-JNK pathway and inflammation. EGCG reversed the harm of Mn to fish through the above mechanism. The findings of this study provided the evidence of EGCG-alleviated Mn poisoning and offered new ideas for reducing heavy metal environmental pollution risk.
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Affiliation(s)
- Qin Zhou
- College of Animal Science and Technology, Northeast Agricultural University, China
| | - Jiawen Cui
- College of Animal Science and Technology, Northeast Agricultural University, China
| | - Yuhang Liu
- College of Animal Science and Technology, Northeast Agricultural University, China
| | - Lepeng Gu
- College of Animal Science and Technology, Northeast Agricultural University, China
| | - Xiaohua Teng
- College of Animal Science and Technology, Northeast Agricultural University, China.
| | - You Tang
- Electrical and Information Engineering College, Jilin Agricultural Science and Technology University, China.
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Zhu S, Dong Z, Yang B, Zeng G, Liu Y, Zhou Y, Meng J, Wu S, Shao Y, Yang J, Guo X. Spatial Distribution, Source Identification, and Potential Ecological Risk Assessment of Heavy Metal in Surface Sediments from River-Reservoir System in the Feiyun River Basin, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:14944. [PMID: 36429665 PMCID: PMC9691065 DOI: 10.3390/ijerph192214944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 11/04/2022] [Accepted: 11/10/2022] [Indexed: 06/16/2023]
Abstract
To investigate the pollution characteristics of the surface sediments of the river-reservoir system in the Feiyun River basin, a sediment heavy metal survey was conducted for the first time in the Feiyun River basin. Surface sediments from 21 sampling sites in the Feiyun River basin were collected, and the concentrations and spatial distribution characteristics of 15 heavy metals (Cr, Ni, Cu, Zn, As, Cd, Pb, Mn, V, Co, Mo, Sb, W, Fe, and Se) were analyzed. Three heavy metal ecological risk assessment methods were used to evaluate the potential risks of heavy metals in sediments, and the sources of major heavy metals were traced by correlation analysis and principal component analysis. The results show that (1) the average concentration of heavy metals (As) (212.64 mg/kg) and (Sb) (4.89 mg/kg) in Feiyun River Basin is 33.3 and 6.89 times the background value of Zhejiang Province; the overall spatial distribution of heavy metals is: the mainstream of Feiyun River > Zhaoshandu Reservoir > Shanxi Reservoir, thereby, the pollution is relatively significant; (2) by processing the geo-accumulation index and enrichment index methods, As and Sb are classified as 'severely polluted', 'moderately severely polluted' and 'severely polluted', 'very severe polluted' respectively; (3) the potential ecological index evaluates the surface sediments in the Feiyun River Basin as a very high risk level, the main environmental risk factors are As, Sb, Cd and Mo; (4) the principal component analysis results show that the heavy metals in the sediments of the Feiyun River Basin may be mainly affected by human activities such as sewage from domestic and agricultural activities, mining and smelting, and the others are affected by natural factors.
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Affiliation(s)
- Shengnan Zhu
- College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
| | - Zengchuan Dong
- College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
| | - Bohua Yang
- Wenzhou Hydrology Management Center, Wenzhou 325000, China
| | - Guangen Zeng
- Wenzhou Hydrology Management Center, Wenzhou 325000, China
| | - Yupeng Liu
- College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
| | - Yuejiao Zhou
- College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
| | - Jinyu Meng
- College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
| | - Shujun Wu
- College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
| | - Yiqing Shao
- College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
| | - Junfei Yang
- College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
- State Key Laboratory of Hydrology and Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China
| | - Xiao Guo
- Changzhou Tianning District Agriculture and Rural Bureau, Changzhou 213000, China
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Zhang S, Wang T, Wang H, Kang Q, Zhou Q, Chen B. Spatial Pattern, Sources Identification, and Risk Assessment of Heavy Metals in a Typical Soda Soil from Bayannur, Northwestern China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13880. [PMID: 36360760 PMCID: PMC9656825 DOI: 10.3390/ijerph192113880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/19/2022] [Accepted: 10/23/2022] [Indexed: 06/16/2023]
Abstract
Soil is an important natural resource in the agricultural areas of northwest China. The heavy metal concentration and ecological risk assessments are crucial for food safety and human health. This work collected 35 surface soil samples and focused on a typical soda soil quality of the Hetao Plain in Bayannur, which is an important grain production base in northern China. The concentration and composition of heavy metal (arsenic (As), cobalt (Co), copper (Cu), lead (Pb), cadmium (Cd), chromium (Cr), mercury (Hg), nickel (Ni), zinc (Zn)), soluble salts, total organic carbon (TOC), and minerals of the surface soils were analyzed to assess the biotoxicity, ecological risk, sources, and influencing factors of heavy metals in these soda soil from this region. The enrichment factors (EF) showed that As, Co, Cu, and Pb were not contaminated in these soils, while Cd, Cr, Hg, Ni, and Zn were lightly contaminated. The index of geoaccumulation (Igeo) for the soda soils indicated that Co and Pb were uncontaminated, and Cr, Cd, Ni, Zn, Hg, Cu, and As were lightly contaminated. The potential ecological risk index (RI) indicated there were no or low risks for As, Co, Cr, Cu, Ni, Pb, and Zn. Although the concentrations of Cd and Hg in the soil were low, the two heavy metals exhibited moderate-high ecological risk because they have high biological toxicity. Cd in the soils from Hetao Plain in Bayannur is mainly exchangeable and reducible fractions. The other heavy metals in these soda soils are mainly in residue fraction, implying that their mobility is low and not easily absorbed and used by plants. Heavy metal fractions, principal component analysis (PCA), and correlation analysis showed that As, Co, Cr, Cu, and Pb were mainly from natural sources, while Ni, Cd, and Zn were mainly from anthropogenic discharge-related irrigation, fertilizers, and pesticide application, and Hg was mainly from winter snowfall in the study area. Naturally sourced metal elements have obvious sediment properties, and their adsorption by clay minerals and coupling with organic matter along with sediment transport sorting. The salinity and pH of soda soils in the study area have a highly positive correlation, hence the influence of factors on the concentrations of soil heavy metals are consistent. For anthropogenically imported heavy metals, increasing salinity and pH promote the precipitation of metallic elements in water. Cd is present as an exchangeable and reducible fraction, while Ni and Zn are mainly sequestered by organic matter and clay minerals.
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Affiliation(s)
- Shuncun Zhang
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- Gansu Salinization Field Observation and Research Station, Lanzhou 730000, China
| | - Tao Wang
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- Gansu Salinization Field Observation and Research Station, Lanzhou 730000, China
| | - Hao Wang
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qiangqiang Kang
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qian Zhou
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bo Chen
- Guangxi Key Laboratory of Green Chemical Materials and Safety Technology, Beibu Gulf University, Qinzhou 515000, China
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