Zinc in soil reflecting the intensive coal mining activities: Evidence from stable zinc isotopes analysis

In the mining area affected by coal mining activities for a long time, heavy metal Zn pollution poses a serious threat to soil quality and human health, and direct evidence showing the relationship between Zn accumulation mechanism in soils and mining activities is lacking. In this study, the Zn con...

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Main Authors: Dandan Wang, Liugen Zheng, Mengxi Ren, Chang Li, Xianglin Dong, Xiangpin Wei, Weijun Zhou, Jiasheng Cui
Format: Article
Language:English
Published: Elsevier 2022-07-01
Series:Ecotoxicology and Environmental Safety
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0147651322005097
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author Dandan Wang
Liugen Zheng
Mengxi Ren
Chang Li
Xianglin Dong
Xiangpin Wei
Weijun Zhou
Jiasheng Cui
author_facet Dandan Wang
Liugen Zheng
Mengxi Ren
Chang Li
Xianglin Dong
Xiangpin Wei
Weijun Zhou
Jiasheng Cui
author_sort Dandan Wang
collection DOAJ
description In the mining area affected by coal mining activities for a long time, heavy metal Zn pollution poses a serious threat to soil quality and human health, and direct evidence showing the relationship between Zn accumulation mechanism in soils and mining activities is lacking. In this study, the Zn content and isotopes composition (δ66Zn) from soil and environmental samples around mining area were determined and analyzed to clarify the Zn characteristics in soil. Moreover, the distribution and source of Zn content in soil of mining area were analyzed by mathematical statistics, correlation analysis and isotope mass mixing model. The results showed that: (1) the Zn content in soil ranged from 95 to 327 mg·kg−1 (mean: 233 mg·kg−1), exceeding the control point and the soil background value of Anhui Province; (2) the results of Zn isotope analysis showed that Zn in soil mainly derived from the wind dispersion input of fine particles in gangue and fly ash, followed by the natural weathering of parent material; (3) isotopic mass mixing model can be used to distinguish the contribution of anthropogenic and natural Zn sources. Mining input was the main contribution source of Zn in soil (mean: 67%), followed by natural background (mean: 33%). The employment of Zn isotopes can effectively evaluate the impact of anthropogenic and natural long-term processes on Zn in the soil of the mining area, and provide important information for the formulation of soil metal pollution control measures.
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spelling doaj.art-b50229dfe06a43d4bd2397d84903956b2022-12-22T03:22:07ZengElsevierEcotoxicology and Environmental Safety0147-65132022-07-01239113669Zinc in soil reflecting the intensive coal mining activities: Evidence from stable zinc isotopes analysisDandan Wang0Liugen Zheng1Mengxi Ren2Chang Li3Xianglin Dong4Xiangpin Wei5Weijun Zhou6Jiasheng Cui7School of Resources and Environmental Engineering, Anhui University, Anhui Province Engineering Laboratory for Mine Ecological Remediation, Hefei 230601, Anhui, ChinaSchool of Resources and Environmental Engineering, Anhui University, Anhui Province Engineering Laboratory for Mine Ecological Remediation, Hefei 230601, Anhui, China; Corresponding author.School of Resources and Environmental Engineering, Anhui University, Anhui Province Engineering Laboratory for Mine Ecological Remediation, Hefei 230601, Anhui, ChinaSchool of Resources and Environmental Engineering, Anhui University, Anhui Province Engineering Laboratory for Mine Ecological Remediation, Hefei 230601, Anhui, ChinaGeological Survey Division, Huaibei Coal Mining Group Corporation, Huaibei 235001, Anhui, ChinaGeological Survey Division, Huaibei Coal Mining Group Corporation, Huaibei 235001, Anhui, ChinaLinhuan Coal Mine, Huaibei Coal Mining Group Corporation, Huaibei 235001, Anhui, ChinaLinhuan Coal Mine, Huaibei Coal Mining Group Corporation, Huaibei 235001, Anhui, ChinaIn the mining area affected by coal mining activities for a long time, heavy metal Zn pollution poses a serious threat to soil quality and human health, and direct evidence showing the relationship between Zn accumulation mechanism in soils and mining activities is lacking. In this study, the Zn content and isotopes composition (δ66Zn) from soil and environmental samples around mining area were determined and analyzed to clarify the Zn characteristics in soil. Moreover, the distribution and source of Zn content in soil of mining area were analyzed by mathematical statistics, correlation analysis and isotope mass mixing model. The results showed that: (1) the Zn content in soil ranged from 95 to 327 mg·kg−1 (mean: 233 mg·kg−1), exceeding the control point and the soil background value of Anhui Province; (2) the results of Zn isotope analysis showed that Zn in soil mainly derived from the wind dispersion input of fine particles in gangue and fly ash, followed by the natural weathering of parent material; (3) isotopic mass mixing model can be used to distinguish the contribution of anthropogenic and natural Zn sources. Mining input was the main contribution source of Zn in soil (mean: 67%), followed by natural background (mean: 33%). The employment of Zn isotopes can effectively evaluate the impact of anthropogenic and natural long-term processes on Zn in the soil of the mining area, and provide important information for the formulation of soil metal pollution control measures.http://www.sciencedirect.com/science/article/pii/S0147651322005097IsotopeHeavy metalSoilZinc
spellingShingle Dandan Wang
Liugen Zheng
Mengxi Ren
Chang Li
Xianglin Dong
Xiangpin Wei
Weijun Zhou
Jiasheng Cui
Zinc in soil reflecting the intensive coal mining activities: Evidence from stable zinc isotopes analysis
Ecotoxicology and Environmental Safety
Isotope
Heavy metal
Soil
Zinc
title Zinc in soil reflecting the intensive coal mining activities: Evidence from stable zinc isotopes analysis
title_full Zinc in soil reflecting the intensive coal mining activities: Evidence from stable zinc isotopes analysis
title_fullStr Zinc in soil reflecting the intensive coal mining activities: Evidence from stable zinc isotopes analysis
title_full_unstemmed Zinc in soil reflecting the intensive coal mining activities: Evidence from stable zinc isotopes analysis
title_short Zinc in soil reflecting the intensive coal mining activities: Evidence from stable zinc isotopes analysis
title_sort zinc in soil reflecting the intensive coal mining activities evidence from stable zinc isotopes analysis
topic Isotope
Heavy metal
Soil
Zinc
url http://www.sciencedirect.com/science/article/pii/S0147651322005097
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AT changli zincinsoilreflectingtheintensivecoalminingactivitiesevidencefromstablezincisotopesanalysis
AT xianglindong zincinsoilreflectingtheintensivecoalminingactivitiesevidencefromstablezincisotopesanalysis
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