马鞍山城区土壤重金属污染评价及源分析  

Assessment and Source Analysis of Heavy Metal Pollution in Urban Soil of Ma'anshan City

作　　者：张俊[1] 吴蓉[1] 沈露[1] 罗梦[1] 

机构地区：[1]河海大学文天学院土木工程系,安徽马鞍山243031

出　　处：《宜春学院学报》2017年第3期88-92,共5页Journal of Yichun University

基　　金：河海大学文天学院校级科研项目(WT15013ZD;WT16006);安徽省大学生创新创业训练计划(201614203036);安徽省高等教育振兴计划(2015zytz076)

摘　　要：为了解马鞍山城区土壤重金属污染特征,在城区共采集了27个土壤样品,利用ICPAES对其重金属元素含量进行测试,利用地累积指数法进行污染评价,并利用空间分析法和因子分析法对其来源进行判别。地累积指数表明该区As属中等污染,Pb、Co属中等-强污染,Ni、Cd属强-极严重污染,而Mn、Cr尚无污染;因子分析结果表明:8种重金属可以提取4个因子,因子1受控于Ni、Cr的元素组合,因子2受控于Cd、Co的元素组合,因子3受控于Fe,因子4受控于Pb、Mn的元素组合,4个因子对As均有一定程度的影响,结合空间分析和该区实际情况,可以认为4个因子分别表示农业化肥污染、工业和五金行业、自然成因以及道路交通污染。In order to know the characteristics of soil heavy metal pollution in urban soil of Mabzashan City, 27 soil samples were col- lected and the contents of heavy metals determined by ICP - AES, the method of index of geoaccumulation was applied to evaluate the pollution, and the spatial analysis and factor analysis were used to determine the source of the pollution. Results show that ： （ 1 ） As shows moderate pollution, Pb, Co shows a medium - strong pollution, Cd, Ni shows strong - serious pollution, and Mn, Cr is no - pollute. （2） The results of factor analysis showed that 8 heavy metal elements can be extracted into 4 factors, factor 1 is controlled by Ni - Cr, factor 2 controlled by Cd, Co, while the factor 3 is controlled by Fe, factor 4 is controlled by Pb - Mn, combined with the spatial analysis and practical, consider 4 factors representing agricultural chemical fertilizer pollution, industry and hardware industry, natural causes and traffic pollution.

关 键 词：马鞍山市 土壤重金属 污染评价 源分析 

分 类 号：X142[环境科学与工程—环境科学] P595[天文地球—地球化学]