广东化工2023年第16期·122·www.gdchem.com第50卷总第498期安徽省某化工厂土壤重金属污染现状与评价高芮1，孙晨曦2，李伟平3，黄俊2(1．安徽省巢湖管理局湖泊生态环境研究院，安徽合肥238001；2．合肥学院，安徽合肥230601；3．安徽国祯环境修复股份有限公司，安徽合肥230088)[摘要]本研究针对安徽省中南部某化工厂污染现场土壤中重金属的污染情况，采集28个土壤样品，并对其中的汞、砷、铜、镉、铅进行了测定。结果表明，这一遗留地块内土壤重金属中的汞、砷、铜、镉和铅,分别达到平均含量为0.32，11.29，36.25，0.37，27.10mg·kg-1；依据单因子污染指数及内梅罗综合指数分析结果，五类重金属的危害性等级大小顺序为：汞＞镉＞铜＞砷＞铅；采用潜在生态风险指数法评价表明：土壤重金属的RI均值441.5，Hg、Cd分别属于较强生态危害、强生态危害，剩下三个则属于轻微生态危害，各重金属的潜在生态风险指数依次为汞＞镉＞砷＞铜＞铅，而汞的作用是最主要的。[关键词]重金属污染；生态危害；风险评价[中图分类号]TQ[文献标识码]A[文章编号]1007-1865(2023)16-0122-03StatusandAssessmentofHeavyMetalPollutioninSoilofaChemicalPlantinAnhuiProvinceGaoRui1,SunChenxi2,LiWeiping3,HuangJun2(1.LakeEcologicalEnvironmentResearchInstituteofAnhuiChaohuManagementBureau,Hefei238001；2.SchoolofBiologicalFoodandEnvironment,HefeiUniversity,Hefei230601；3.AnhuiGuozhenEnvironmentalRemediationCompanyLimited,Hefei230088,China)Abstract:InviewoftheheavymetalpollutioninthesoilofachemicalplantinthecentralandsouthernAnhuiProvince,28soilsamplesweretested,andthemercury,arsenic,copper,cadmiumandleadinthemweredetermined.Theresultsshowedthattheaveragecontentsofmercury,arsenic,copper,cadmiumandleadinthesoilheavymetalsintheleftplotwere0.32,11.29,36.25,0.37,27.10mg·kg-1,respectively.AccordingtotheanalysisresultsofsinglefactorpollutionindexandNemerowcompositeindex,theorderoftheharmfulnessofthefiveheavymetalsismercury＞cadmium＞copper＞arsenic＞lead.ThepotentialecologicalriskindexmethodshowedthattheaverageRIofsoilheavymetalswas441.5,Hgbelongedtothestrongecologicalhazard,Cdbelongedtothestrongecologicalhazard,andotherheavymetalsbelongedtotheslightecologicalhazard.Thepotentialecological...
