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1、中文摘要I山西师范大学学位论文单因子污染指数法评价结果表明，以国家土壤二级标准为参比值，焦化厂研究区土壤属于清洁水平，未污染；以山西背景值为参比值，六种重金属元素都有不同程度的污染，Hg、Cd的污染尤为严重。内梅罗污染指数评价结果表明，以国家土壤二级标准为参比值，焦化厂研究区土壤属于清洁土壤；以山西背景值为参比值，研究区土壤达到中度污染水平；地累积污染指数法评价结果表明，除Mn外，其他五种重金属元素都有超过山西土壤背景值的土壤样品，Hg、Cd的污染级别较高；潜在生态危害指数法评价结果表明，以国家二级为标准时土壤壤重金属潜在生态风险危害程度均较小，尚未造成污染；以山西背景值为评价标准
2、时，Cd、Hg生态危害程度相对比较高，其中部分样品的风险程度达到极强。【关键词】焦化厂；土壤；重金属；污染评价【论文类型】基础II英文摘要III山西师范大学学位论文surroundingsoilandthecontentofheavymetals（Zn、Cd、Cu、Mn、Hg、As）,andalsousingthesinglefactorpollutionindexmethod,Nemerowcomprehensivepollutionindexmethod,Igeopollutionindexmethodandpotentialecologicalharmindexmethode
3、valuatetheheavymetalspollution,furtherresearchthevariousfactorsaffectingthecontentofheavymetalsinthesoil.Theconclusionasfollows:ThepercentofZn、Cd、Cu、Mn、Hg、andAsofsurfacesoilinsitewas31.25%、100%、100%、12.5%、100%and87.5%,whichcontentinthesoiloverthebackgroundvaluesinShanxiProvince,butdidnotexceed
4、nationalsoilsecondarystandard;HgandCdcontentinsoilismuchhigherthanthesoilbackgroundvaluesinShanxi,haveahighdegreeaccumulation;theheavymetalcontentinthecokingplantishigherthantheoutside;Mostofthevariationcoefficientwithinthemoderatescope;allkindsofmetalelementshaveacomplexrelationship,heavymeta
5、lpollutionhavedifferentsource,thecompoundcrosscontaminationisthemainfactor.Theheavymetalscontentinsoutheastsoilsamplesaregreaterthanthenortheastandwestdirection;itmeansthattheaccumulationofheavymetalsisstronglyinfluencedbythewinddirection,mostofthenorthwestwind.Thedataofphysicalandchemicalprop
6、ertiesofsoil,showthatthesoilfertilityofin-siteandout-sitearemoderate,buttheorganiccontentandsoilfertilityofoutsidearehigherthantheinside,therelationshipbetweenthephysicalandchemicalpropertiesaresignificantly.Therehavenosignificantcorrelationbetweentheheavymetalelementsandorganicmattercontent;t
7、herehaveaIV英文摘要negativecorrelationbetweenPandCd,Cu,Mnelementcontent.Accordingtothesingle-factorpollutionindexmethod,refertothenationalsoilsecondarystandard,cokingplantofsoilinthestudyareabelongstocleanlevel,nopollution;refertotheShanxib
