华南地质2023，Vol.39Issue(4)：655-665,11.DOI:10.3969/j.issn.2097-0013.2023.04.006
某金属矿山周边土壤重金属污染评价
Evaluation of Heavy Metal Pollution in Soil Around a Metal Mine
摘要
Abstract
In order to identify the characteristics and influence range of heavy metal pollution in surface soil(0-20cm)around a metal mine in Northwest China,314 samples were collected and analyzed for heavy metal elements such as Cu,Pb,Cd,As,Hg,Zn,Cr and Ni etc.,and the degree of ecological risk degree was evaluat-ed by using the pollution index method and potential ecological hazard index method.The results show that:(1)Cd,Pb,Zn,Cu and As concentration are all higher than the regional background values,and Cr and Ni are mainly derived from mother rocks.The pollution of Hg is more concentrated and strongly affected by human activities.(2)The pollution degree of heavy metal elements is ranked from the strongest to the weakest,with Cd>Cu>Zn>As>Pb>Cr>Ni>Hg.(3)The average values of the potential ecological hazard index of heavy metal elements were(Cd)>(As)>(Cu)>(Pb)>(Hg)>(Zn)>(Ni)>(Cr)in descending order.(4)The heavy metal pollution level of soil in the studied area is serious,and the comprehensive potential ecological risk degree is moderate harm.关键词
土壤污染/重金属/污染指数/风险评价/金属矿山Key words
soil pollution/heavy metal/pollution index/risk assessment/metal mine分类
天文与地球科学引用本文复制引用
王守兴,欧立鹏,祁尧刚,徐得忠,曾思敏..某金属矿山周边土壤重金属污染评价[J].华南地质,2023,39(4):655-665,11.基金项目
中国地质调查局项目(DD20208076) （DD20208076）
