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

作　　者：赵君 杨军 马小云 周进康 吴坤 ZHAO Jun;YANG Jun;MA Xiaoyun;ZHOU Jinkang;WU Kun(School of Chemistry and Materials Science,Guizhou Education University,Guiyang 550018,China)

机构地区：[1]贵州师范学院化学与材料学院,贵州贵阳550018

出　　处：《贵州科学》2024年第2期57-61,共5页Guizhou Science

基　　金：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,〔2019〕1252)。

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、Cr 6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。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 contaminants 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 comprehensive index of most samples reached severe pollution.The ecological risk assessment showed that the soil in the mining 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 

分 类 号：X705[环境科学与工程—环境工程]