郴州市西河流域土壤重金属污染及其潜在生态风险评估

Assessment of the Heavy Metal Pollution and the Potential Ecological Risk to the Soil of Xihe River Basin Chenzhou City

对郴州市西河流域土壤重金属Cu、Pb、Zn、Cd、Hg、As的污染现状进行了调查与分析,结果表明:西河流域土壤Cu、Pb、Zn、Cd、Hg和As总含量分别在88 mg·kg-1-1813 mg·kg-1;154 mg·kg-1-8417 mg·kg-1;140 mg·kg-1-3592 mg·kg-1;57 mg·kg-1-95 mg·kg-1;55 mg·kg-1-85 mg·kg-1和161 mg·kg-1-8622mg·kg-1范围之间,均严重超标,说明该流域土壤重金属污染存在着极为严重的生态环境风险.

Investigation and analysis of the current pollution of heavy metal Cu,Pb,Zn,Cd,Hg,As to the soil in Xihe riverbasinChenzhou city showed that：the total content of Cu,Pb,Zn,Cd,Hg andAswas 88 mg·kg-1-1813 mg·kg-1,154 mg·kg-1-8417 mg·kg-1,140 mg·kg-1-3592 mg·kg-1,57 mg·kg-1-95 mg· kg-1,55 mg·kg-1-85 mg·kg-1and 161 mg·kg-1-8622 mg·kg-1,respectively.All the ranges exceeded badly and itmeant very serious ecological environmental risk.