摘要
通过对比园区和乡村农田土壤Hg、Cd、Pb、As、Cr的污染状况及对人体的健康风险,以期为该区域的农业种植方式以及土地利用方式提供参考。因此采集并测定了10个乡村农田和园区土壤中Hg、Cd、Pb、As、Cr的含量,并通过人为影响倍数、地质累积指数、健康风险评价模型对样区进行分析。结果表明:乡村农田土壤As、Hg污染较重;园区土壤中Cr和Pb变异最大,可能存在点源污染;园区土壤污染次序:Hg>Cd>Pb>As=Cr;农田土壤的HQ次序:As>Pb>Cr>Hg>Cd,致癌风险指数CRCr,As>风险阈值,TCR>10^(-6)~10^(-4),表明Cr和As对人群存在较大致癌风险。
By comparing the pollution status of Hg,Cd,Pb,As,Cr and the health risk to human body in the park and rural farmland,we hope to provide reference for the agricultural planting types and land use types in this region.Therefore,the contents of Hg,Cd,Pb,As and Cr in soil of 10 rural farmlands and parks were collected and determined,the sample areas were analyzed by human impact multiple,geological accumulation index and health risk assessment model.The results showed that:the pollution of As and Hg in rural farmland soil was serious;the variation of Cr and Pb in the park soil was the largest,and there might be point source pollution;the pollution order of park soil was Hg>Cd>Pb>As=Cr;the pollution order of farmland soil was As>Pb>Cr>Hg>Cd,and the carcinogenic risk index was CRCr,As>risk threshold,TCR>10^(-6)~10^(-4),which indicated that Cr and As had great carcinogenic risk to the population.
作者
程志飞
吴迪
韦锟
张林
Cheng Zhifei;Wu Di;Wei Kun;Zhang Lin(Basic Teaching Department,Guizhou Vocational College of Agricl,Guiyang 550001,China;Guizhou Key Laboratory of Mountain Environmental Information System and Ecological Environment Protection,Guizhou Normal University,Guiyang 550001,China;Guizhou Gaoshan Baiyi Edible Fungi Development Co.,Ltd.,Guiyang 550001,China)
出处
《山东化工》
CAS
2021年第15期248-249,251,共3页
Shandong Chemical Industry
基金
筑科合同[2020]-18-6号
黔科中引地(2018)4017。
关键词
生态园区
乡村农田
重金属
地质累积指数
健康风险评价
ecological park
rural farmland
heavy metals
geologic accumulation index
health risk assessment
