露天开采矿区土壤重金属污染状况评价  

Evaluation on soil heavy metal pollution at Dabaoshan mine in Guangdong province

作　　者：陈三雄[1,2] 谢莉[3] 陈家栋[1] 张金池[1] 廖建文[2] 

机构地区：[1]南京林业大学森林资源与环境学院,江苏南京210037 [2]中水珠江规划勘测设计有限公司,广东广州510610 [3]水利部珠江水利委员会,广东广州510611

出　　处：《南京林业大学学报（自然科学版）》2012年第3期59-63,共5页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：中水珠江规划勘测设计有限公司科研项目(2009-03)

摘　　要：对广东大宝山矿区土壤Cd、Pb、Zn、Cu含量进行了测试与分析,采用单因子污染指数法和内梅罗综合指数法对土壤重金属污染状况进行了评价。结果表明,大宝山矿区土壤中重金属含量差异较大,但都要明显高于广东省土壤重金属背景值。27个土壤样品中,Cd和Cu的单因子污染指数都大于1,超标率达100%,有21个土壤样品的Pb和Zn的单因子污染指数大于1,超标率为77.8%。从综合污染指数来看,27个土壤样品的综合污染指数在5.74～157.23之间,所有样品的综合污染指数都要大于3,表明矿区土壤已受到重金属严重污染,其中以Cd、Cu的污染最为严重。The Cd,Pb,Zn,Cu contents of soil at Dabaoshan mine were analyzed and the condition of soil pollution caused by heavy metal was evaluated by using single factor pollution index and N.L.Nemerow comprehensive pollution index in this paper.The results showed that there were great difference in the content of heavy metals of different soil,but they were all significantly higher than the background value of heavy metal of soil in Guangdong province.Within the 27 soil samples,single factor pollution indexes of Cd and Cu were all greater than 1,all of which exceeded the standard.There were 21 samples that the number of the single factor pollution index of Pb and Zn were greater than 1,and the exceeding standard rate was 77.8 %.The N.L.Nemerow comprehensive pollution indexes of 27 soil samples were in the range of 5.74-157.23,and were over 3.It was indicated that the soil has been severely polluted by heavy metal,especially by Cd and Cu.

关 键 词：重金属 污染评价 单因子污染指数 内梅罗综合指数 大宝山矿区 

分 类 号：S718[农业科学—林学] X825[环境科学与工程—环境工程]