贵州福泉煤矿区土壤重金属污染及风险评价
Heavy metal pollution in soil and risk assessment in Fuquan Coal Mine of Guizhou
赵君 1杨军 1马小云 1周进康 1吴坤1
作者信息
- 1. 贵州师范学院 化学与材料学院,贵州 贵阳 550018
- 折叠
摘要
为研究福泉市煤矿周边土壤重金属污染情况,以矿区周边土壤为研究对象,对土壤中的Hg、As、Cd、Zn、Cu、Cr6种重金属含量进行了测定,同时利用单因子指数法、内梅罗综合污染指数法及潜在生态风险指数对土壤进行风险评价.含量分析结果显示,该矿区周边土壤中6种重金属含量存在一定的差异,主要以Cd、Zn污染为主,土壤母质和人为活动是重金属污染的重要来源;单因子和综合污染指数显示土壤受到了一定的污染,大部分样品的综合污染指数达到了重度污染;生态风险评价表明矿区土壤总体处于中等污染水平,需对Cd的污染进行重点管控.
Abstract
To study the heavy metal pollution around Fuquan Coal Mine,the soil around the mine was taken as the research object and the content of six heavy metals(Hg,As,Cd,Zn,Cu,Cr)in the soil were analyzed.The risk of the soil was assessed by single factor index,Nemerow comprehensive index and potential ecological risk index.The results showed that the contents of the six heavy metals in the soil were different,Cd and Zn were the main con-taminants in the soil,and parent soil material and human activity were the main sources of heavy metal pollution.The single factor index and comprehensive index showed that the soil was polluted by heavy metals,the comprehen-sive index of most samples reached severe pollution.The ecological risk assessment showed that the soil in the min-ing area was moderately polluted and the pollution of Cd should be controlled.
关键词
煤矿/重金属污染/风险评价/土壤Key words
coal mine/heavy metal pollution/risk assessment/soil引用本文复制引用
基金项目
国家自然基金补助项目(黔研合平台人才[2019]5778-08)
贵州省教育厅青年科技人才成长项目([2021]238)
贵州省科技厅项目(黔科合基础[2018]1122)
贵州省科技厅项目([2019]1252)
出版年
2024
NETL
NSTL
维普
万方数据