辽宁抚顺东部地区土壤环境质量评价  

Evaluation of soil environmental quality in eastern Fushun,Liaoning Province

作　　者：李娟 赵朋[1] 刘宝华[1] 艾福开 Li Juan;Zhao Peng;Liu Baohua;Ai Fukai(Liaoning 10th Geological Brigade Co.,Ltd,Fushun Liaoning 113004,China)

机构地区：[1]辽宁省第十地质大队有限责任公司,辽宁抚顺113004

出　　处：《环境与发展》2021年第2期45-49,共5页Environment & Development

基　　金：国家自然基金:浑河上游水源涵养区1:10万环境地质调查(DD20160266-04)。

摘　　要：抚顺东部地区是重要的水源地,其区内土壤环境质量状况对人民身体健康有重要影响。通过对该区土壤8种重金属的单因子指数和内梅罗综合指数的分析,结果表明:300个点位中254个点位土壤环境质量均属无污染。其余46个点位中,Zn、Hg和Cd轻度至重度超标点占3%,是主要的重金属污染元素,以散点状分布为特征。综合污染指数研究发现,79%的土壤样品处于清洁区,15.67%样品处于尚清洁区,3%的样品处于轻微污染区,0.67%的样品处于中度污染区,1.67%的样品处于重度污染区。土壤环境质量总体水平较好,但局部有轻中重度污染。矿山开采、污水处理厂、垃圾处理厂、废渣堆、排土场的重金属元素迁移至土壤内,是造成土壤污染的主要原因。The eastern region of Fushun is an important water source,the quality of soil environment has an important impact on people's health.The single factor index and Nemero comprehensive index of eight heavy metals in the soil of this area were analyzed:The soil environmental quality of 254 of 300 sites was pollution-free.Among the other 46 sites,Mild to severe over standard points of Zn,Hg and Cd accounted for 3%of the total,which were the main heavy metal pollution elements with scattered distribution.According to the comprehensive pollution index,79%of the soil samples are in the clean area;15.67%of the samples are in the Sub clean area;3%of the samples are in the slightly polluted area;0.67%of the samples are in the moderate pollution area,and 1.67%of the samples are in the heavy pollution area.The overall level of soil environmental quality is good,but there are light,moderate and severe pollution in some parts.The migration of heavy metal elements from mining,sewage treatment plant,waste disposal plant and waste dump into soil is the main reason for soil pollution.

关 键 词：土壤 单因子指数法 内梅罗综合指数法 环境质量评价 

分 类 号：X825[环境科学与工程—环境工程]