安徽芜湖市土壤汞污染评价及影响因素分析  

Environmental Pollution Assessment of Soil Hg and Influence Factors in Wuhu,Anhui Province

作　　者：陈文娟[1] 方凤满[1] 余健[1] 张志明[1] 杨丁[1] 

机构地区：[1]安徽师范大学国土资源与旅游学院,安徽芜湖241003

出　　处：《安徽师范大学学报（自然科学版）》2009年第2期168-172,共5页Journal of Anhui Normal University(Natural Science)

基　　金：安徽高校省级自然科学研究重点项目(KJ2009A137);安徽省高校青年教师资助计划项目(2007jq1063zd)

摘　　要：以芜湖市区五个功能分区为研究区,采集土样174个,在分析土壤汞含量水平的基础上对芜湖市土壤汞污染状况进行评价,同时对土壤中汞含量与土壤理化性质做了相关性分析.结果表明,芜湖市土壤汞含量的变化范围为0.024-2.844mg.kg-1,平均值为0.207mg.kg-1,单因子指数和地积累指数均显示仅有镜湖区为轻度污染区,其它四个区均属于清洁区.相关性分析表明:土壤的理化性质与土壤汞含量具有不同程度的相关性,相关性程度为土壤汞含量与总磷的相关性>土壤汞含量与阳离子交换量的相关性>土壤汞含量与有机质的相关性,pH与土壤汞含量无明显相关性.芜湖市土壤汞的分布格局是土壤母质和人类共同作用的结果.One hundred and seventy-four top-layer soil samples were collected from five areas in Wuhu City. Based on the analysis of the levels of soil Hg, on the one hand we evaluated the station of soil Hg pollution, on the other hand we discussed the relationships between Hg in soil and some soil chemical properties. The results showed that the content of Hg in soil changed from 0. 024mg·kg^-1 to 2. 844mg·kg^-1 with an average of 0. 207mg·kg^-1. The single factor pollution index and geoaccumulation index showed that only Jinghu area had mildly been contaminated and the rest four areas belonged to clean areas. Correlation analysis showed that soil chemical properties except pH had different correlation with the content of soil Hg, and the order is TP〉CEC〉 OM. The distribution pattern of soil Hg attribute to soil parent material and anthropogenic.

关 键 词：芜湖市 土壤 汞 污染评价 

分 类 号：X131.3[环境科学与工程—环境科学]