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会泽某铅锌矿周边农田土壤重金属风险评价研究
引用本文:陆泗进,王业耀,何立环.会泽某铅锌矿周边农田土壤重金属风险评价研究[J].中国环境监测,2015,31(6):77-82.
作者姓名:陆泗进  王业耀  何立环
作者单位:中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012,中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012,中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012
基金项目:环保公益行业专项"国家土壤环境质量监测网构建和业务化运行保障研究与示范"(201509031)
摘    要:采用现场采样与室内测试方法测定了会泽某铅锌矿周边农田土壤中Cd、As、Pb、Cr、Cu、Zn、Ni的含量,利用地积累指数法、潜在生态指数法对其土壤环境质量进行了评价,并应用US EPA推荐的健康风险评价法对重金属的健康风险进行了初步评价。结果表明,7种重金属均存在不同程度的富集或污染。多种重金属潜在生态风险指数属于中等及以上的风险状态,重金属潜在生态风险指数排序为CdPbAsCuNiZnCr。7种重金属在3种暴露途径下对儿童的非致癌健康风险均大于成人,但对成人、儿童均不存在显著的非致癌健康影响、非致癌健康总风险。As、Ni、Cr、Cd重金属的致癌风险值与4种元素总致癌风险值均未超出10-6~10-4的范围,尚不具备致癌风险。

关 键 词:农田土壤  重金属  生态风险  健康风险
收稿时间:2015/1/22 0:00:00
修稿时间:2015/3/17 0:00:00

Ecological and Health Risk of Heavy Metals in Soils Near a Pb-Zn Mine in Huize Country
LU Si-jin,WANG Ye-yao and HE Li-huan.Ecological and Health Risk of Heavy Metals in Soils Near a Pb-Zn Mine in Huize Country[J].Environmental Monitoring in China,2015,31(6):77-82.
Authors:LU Si-jin  WANG Ye-yao and HE Li-huan
Institution:State Enviromental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012, China,State Enviromental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012, China and State Enviromental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012, China
Abstract:In order to investigated the metals concentrations and their potential ecological risks of heavy metals in soil, the total elemental concentrations of Cd, As, Pb,Cr,Cu, Zn and Ni in the topsoil of paddy fields near a Pb-Zn mine located in Huize country, Yunnan province was analyzed by field sampling and laboratory analysis. The experimental data indicate that the soil was seriously polluted by heavy metals. The potential ecological risk of soil calculated by risk index (RI) revealed a considerable-high ecological risk in study area. The consequence of the average for heavy metals is Cd > Pb > As > Cu > Ni > Zn > Cr. The health risk assessment showed that children are more vulnerable than adults for single factor non-carcinogenic risk and composite non-carcinogenic risk of three exposure ways of seven heavy metals in soil, which meant there was no single factor non-carcinogenic risk and composite non-carcinogenic risk for adults and children. The carcinogenic risk levels of As, Ni, Cr, Cd were no carcinogenic risk for adults and children.
Keywords:agricultural soil  heavy metal  ecological risk  health risk
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