Concentrations,Spatial Distribution and Risk Assessment of Soil Heavy Metals in a Zn-Pb Mine District in South-Western China
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- 英文论文题名：Concentrations,Spatial Distribution and Risk Assessment of Soil Heavy Metals in a Zn-Pb Mine District in South-Western China
- 论文作者：Jianying Qi ; Hailong Zhang ; Xiangping Li ; Jian lu ; GaoshengZhang
- 英文论文作者：Jianying Qi ; Hailong Zhang ; Xiangping Li ; Jian lu ; GaoshengZhang ; South China Institute of Environmental Science ; Ministry of Environmental Protection ; School of Chemistry and Chemical Engineering ; Guangzhou University ; Key Laboratory of Coastal Environmental Processes and Ecological Remediation ; Yantai Institute of Coastal Zone Research (YIC) ; Chinese Academy of Sciences (CAS)
- 年：2016
- 作者机构：South China Institute of Environmental Science,Ministry of Environmental Protection;School of Chemistry and Chemical Engineering,Guangzhou University;Key Laboratory of Coastal Environmental Processes and Ecological Remediation,Yantai Institute of Coastal Zone Research (YIC),Chinese Academy of Sciences (CAS);
- 英文论文关键词：Heavy metals ; Health risk assessment ; Pb/Zn smelting ; Kriging interpolation
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十六分会：环境化学
- 语种：英文
- 分类号：X53;X82
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十六分会 ; 环境化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：94k
- 原文格式：D
- 会议级别：全国
摘要
China is one of the largest producers and consumers of lead and zinc in the world.Lead and zinc mining and smelting can release hazardous heavy metals such as Cd,Pb,Zn and As into soils,exerting health risks to human by chronic exposure.The concentrations of Cd,Zn,Pb,and As in soil samples collected from a Pb-Zn mining area with exploitation history of 60 years were investigated.Health risks of the heavy metals in soil were evaluated using US Environmental Protection Agency(US EPA) recommended method.A geo-statistical technique(Kriging) was used for the interpolation of heavy metals contamination and Hazard Index(HI).The results indicated that the long-term Pb/Zn mining activities caused the serious contamination in the local soil.The concentrations of Cd,As,Pb and Zn in topsoil were 40.3±6.3,103.7±37.3,3518.4±896.1,10413±2973.2 mg/kg dry weight,respectively.The spatial distribution of the four metals possessed similar patterns,with higher concentrations around Aayiken(AYK),Maseka(MSK),and Kuangshan(KS) area and more rapidly dropped concentrations at upwind direction than those at downwind direction.The main contamination layer of soil for Cd and Zn was the upper 60 cm,while it was the upper 40 cm and 20 cmfor Pb and As,respectively.The mobility of metals in study area soil profiles was classed as Cd>Zn?Pb>As.Assessment results indicated that there was a higher health risk(child higher than adult) in the study area.Pb contributed to the highest Hazard Quotient(57.0%~73.9%)for the Hazard Index.
China is one of the largest producers and consumers of lead and zinc in the world.Lead and zinc mining and smelting can release hazardous heavy metals such as Cd,Pb,Zn and As into soils,exerting health risks to human by chronic exposure.The concentrations of Cd,Zn,Pb,and As in soil samples collected from a Pb-Zn mining area with exploitation history of 60 years were investigated.Health risks of the heavy metals in soil were evaluated using US Environmental Protection Agency(US EPA) recommended method.A geo-statistical technique(Kriging) was used for the interpolation of heavy metals contamination and Hazard Index(HI).The results indicated that the long-term Pb/Zn mining activities caused the serious contamination in the local soil.The concentrations of Cd,As,Pb and Zn in topsoil were 40.3±6.3,103.7±37.3,3518.4±896.1,10413±2973.2 mg/kg dry weight,respectively.The spatial distribution of the four metals possessed similar patterns,with higher concentrations around Aayiken(AYK),Maseka(MSK),and Kuangshan(KS) area and more rapidly dropped concentrations at upwind direction than those at downwind direction.The main contamination layer of soil for Cd and Zn was the upper 60 cm,while it was the upper 40 cm and 20 cmfor Pb and As,respectively.The mobility of metals in study area soil profiles was classed as Cd>Zn?Pb>As.Assessment results indicated that there was a higher health risk(child higher than adult) in the study area.Pb contributed to the highest Hazard Quotient(57.0%~73.9%)for the Hazard Index.
China is one of the largest producers and consumers of lead and zinc in the world.Lead and zinc mining and smelting can release hazardous heavy metals such as Cd,Pb,Zn and As into soils,exerting health risks to human by chronic exposure.The concentrations of Cd,Zn,Pb,and As in soil samples collected from a Pb-Zn mining area with exploitation history of 60 years were investigated.Health risks of the heavy metals in soil were evaluated using US Environmental Protection Agency(US EPA) recommended method.A geo-statistical technique(Kriging) was used for the interpolation of heavy metals contamination and Hazard Index(HI).The results indicated that the long-term Pb/Zn mining activities caused the serious contamination in the local soil.The concentrations of Cd,As,Pb and Zn in topsoil were 40.3±6.3,103.7±37.3,3518.4±896.1,10413±2973.2 mg/kg dry weight,respectively.The spatial distribution of the four metals possessed similar patterns,with higher concentrations around Aayiken(AYK),Maseka(MSK),and Kuangshan(KS) area and more rapidly dropped concentrations at upwind direction than those at downwind direction.The main contamination layer of soil for Cd and Zn was the upper 60 cm,while it was the upper 40 cm and 20 cmfor Pb and As,respectively.The mobility of metals in study area soil profiles was classed as Cd>Zn?Pb>As.Assessment results indicated that there was a higher health risk(child higher than adult) in the study area.Pb contributed to the highest Hazard Quotient(57.0%~73.9%)for the Hazard Index.
引文