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以南方典型有色金属冶炼企业集中区为研究对象,对冶炼企业厂界内表层土壤中Cd、Pb、As、Zn、Hg、Cu、Cr(Ⅵ)、Ni八种元素含量进行测定分析,利用单因子污染指数法、内梅罗污染指数法、潜在生态风险和健康风险模型对冶炼厂的生产区、储存区、废水治理区、固废贮存区或处置区进行重金属污染评价及风险评价。结果表明,冶炼厂内土壤受到Cd、Pb、As、Zn四种元素不同程度的污染;风险评价结果显示,冶炼厂内土壤总体存在强潜在生态风险,Cd、As、Zn是主要生态危害元素;同时As存在非致癌风险和致癌风险,Pb存在非致癌风险;厂内污染主要集中在生产区和废水治理区。
Abstract：Typical concentration area of nonferrous metal smelting enterprises in South China was applied as research object,contents of Cd,Pb,As,Zn,Hg,Cu,Cr （Ⅵ）and Ni in topsoil within boundary of smelting enterprises were determined and analyzed.Single pollution index,Nemero synthesis pollution index,potential ecological hazard index,and health risk assessment model were used to evaluate degree and risk of heavy metals pollution in production area,storage area,wastewater treatment area,solid waste storage area or disposal area of the smelter.The results show that soil in the smelter is polluted by Cd,Pb,as and Zn in varying degrees.The risk assessment results show that there is a strong potential ecological risk in the smelter,and Cd,As and Zn are the main ecological hazard elements.The element of As has non-carcinogenic risk and carcinogenic risk,and the element of Pb has non-carcinogenic risk.Pollution in the smelter is mainly concentrated in the production area and wastewater treatment area.
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基本信息:
中图分类号:X53;X820.4
引用信息:
[1]曾晓娜,贺秋华,吕世豪,等.典型冶炼企业集中区土壤重金属污染分析及风险评价[J].有色金属(冶炼部分),2021(12):98-104.
基金信息:
湖南省自然科学基金资助项目（2018JJ2332）
2021-11-23
2021-11-23