通过收集内蒙古自治区部分有色金属采选和冶炼企业周边的土壤重金属环境质量监测数据,对土壤重金属污染状况进行调查.分析重金属污染的成因和来源,提出相应的治理及防范措施,旨在为防治土壤重金属污染提供理论依据.结果表明,研究区巴彦淖尔铅锌矿周围土壤重金属污染最为严重,主要受到Zn、Cd、Pb和As的污染,单项污染指数法评价表明各重金属污染程度为Zn〉Cd〉Pb〉As;其他研究区也均有Zn或Cd超标现象.
By collecting environmental quality monitoring data of heavy metals in the soil around some non-ferrous metals selecting and smelting enterprises in Inner Mongolia,heavy metals pollution in the soil was surveyed.Based on analysis of the causes and sources of heavy metal pollution,certain corresponding prevention measures were put forward so as to offer theoretical basis. The results showed that heavy metal pollution was the most serious in the soil around Bayannur Lead-zinc Mine,which was mainly polluted by Zn,Cd,Pb and As.According to the single factor of pollution index,the pollution degree was ZnCdPbAs.In other areas,Zn or Cd was also in excess of the standard levels.