| Eco-Environmental Geochemistry of Heavy Metal Pollution in Dexing Mining Area |
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| 作者姓名： | 滕彦国 倪师军 焦鹏程 邓坚 张成江 王金生 |
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| 作者单位： | [1]InstituteofGroundwaterEnvironmentandSafety,SchoolofEnvironment,StateKeyLab.ofWaterEnvironmentSimulation,BeijingNormalUniversity,Beijing100875,China [2]ChengduUniversityofTechnology,Chengdu610059,China [3]InstituteofMineralResources,ChineseAcademyofGeologicalSciences,Beijing100037,China |
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| 基金项目： | ChinaPostdoctoralScienceFoundationundertheprogramof“EnvironmentalGeochemicalPrinciplesandTechniquesforAssessingDisturbedSoilbyMiningActivity” (thethirtiethbatch) ,andChinaLandandResourcesMinistrySpecialProject“RegionalGeochemicalBaselineandEnvironment |
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| 摘 要： | An eco-environmental geochemical investigation was carried out in and around the Dexing mining area to determine the concentrations of heavy metals in the surface water, sediments, soils and plants. The main objective of this study is to assess the environmental situation and evaluate the transferring of heavy metals from mining activities into the food chain. Some samples of water, sediment, topsoil and plant were collected along the Lean River in the Dexing mining area. The total concentrations of Cu, Pb, Zn, Cd, and As were determined by AAS, and Hg was analyzed by cold-vapor AAS. Some indices such as ‘contamination degree‘ , ‘geoaccumulation index‘ , and ‘biological absorption coefficient‘ were used to assess eco-environmental quality. The investigation indicated a highly localized distribution pattern closely associated with the two pollution sources along the Le‘an River bank: one is strong acidity and a large amount of Cu in the drainage from the Dexing Cu mining area; and the other is the high concentrations of Pb and Zn in the effluents released from many smelters and mining, processing and extracting activities in the riparian zone. Results from the investigated localities indicated, at least in part, that some problems associated with environmental quality deterioration should be solved in the future.
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| 关 键 词： | 经济环境地球化学 污染度 BAC 矿床区域 江西 |
Eco-environmental geochemistry of heavy metal pollution in Dexing mining area |
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| Teng Yanguo,Ni Shijun,Jiao Pengcheng,Deng Jian,Zhang Chengjiang,Wang Jinsheng.Eco-Environmental Geochemistry of Heavy Metal Pollution in Dexing Mining Area[J].Chinese Journal of Geochemistry,2004,23(4):349-358. |
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| Authors: | Teng Yanguo Ni Shijun Jiao Pengcheng Deng Jian Zhang Chengjiang Wang Jinsheng |
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| Institution: | (1) Institute of Groundwater Environment and Safety, School of Environment, State Key Lab. of Water Environment Simulation, Beijing Normal University, 100875 Beijing, China;(2) Chengdu University of Technology, 610059 Chengdu, China;(3) Institute of Mineral Resources, Chinese Academy of Geological Sciences, 100037 Beijing, China |
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| Abstract: | An eco-environmental geochemical investigation was carried out in and around the Dexing mining area to determine the concentrations of heavy metals in the surface water, sediments, soils and plants. The main objective of this study is to assess the environmental situation and evaluate the transferring of heavy metals from mining activities into the food chain. Some samples of water, sediment, topsoil and plant were collected along the Lean River in the Dexing mining area. The total concentrations of Cu, Pb, Zn, Cd, and As were determined by AAS, and Hg was analyzed by cold-vapor AAS. Some indices such as ‘contamination degree',‘geoaccumulation index', and ‘biological absorption coefficient' were used to assess eco-environmental quality. The investigation indicated a highly localized distribution pattern closely associated with the two pollution sources along the Le'an River bank: one is strong acidity and a large amount of Cu in the drainage from the Dexing Cu mining area; and the other is the high concentrations of Pb and Zn in the effluents released from many smelters and mining, processing and extracting activities in the riparian zone. Results from the investigated localities indicated, at least in part, that some problems associated with environmental quality deterioration should be solved in the future. |
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| Keywords: | eco-environmental geochemistry contamination degree Igeo BAC Dexing mining area |
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