城市表层土壤重金属污染模型(资料)

:2010-06-04;:2010-11-23:(1212010511217-03):(1957-),,,,Emai:[e-mail].(1250000),2005.汤洁,陈初雨,李海毅,张天琴,肖瑞(,130012):,,308,Hakanson,,,(Hg)(Cd),11.9%,,,,:;;;;:X820.4:A:1000-0690(2011)01-0117-06,,,,,[1,2],,[3],44!40∀N~46!00∀N,123!35∀E~125!48∀E,,,,22161km2,262.2[4]4,3076km2,132,;,,;,4,40%;,38[5],,,,,[6],,[7],,11.1#(125)∃,,3081km%1km,1/km2,308(1),0~20cm1kg,200,100g200941.2,#311201101SCIENTIAGEOGRAPHICASINICAVol.31No.1Jan.,2011,(1:25),2005.&,(),2005.1Fig.1DistributionofsamplingsitesinDaqingCity(125)∃#()∃&,AsHgCdPbZnCuNiCr8:,5%,,,(),5%RE,∋85%1.3,,,,(1),AsCr,30%1,Hg(87.5%),Cd(68.6%),HgCd,,,HgCd1Table1ContentsofheavymetalsinurbansoilsofDaqingCityAsHgCdCrNiCuPbZn(mg/kg)11.91.6000.66566.727.562.3291.3145.2(mg/kg)4.00.0130.04716.17.84.814.826.5(mg/kg)7.10.0560.12338.116.318.323.950.9(mg/kg)7.30.0370.08658.622.820.024.270.7(%)21.387.568.626.230.550.943.840.0:n=308[8],,7,2,8%11%HgCd,,118312Table2GeoaccumulationIndexofheavymetalsinurbansurfacesoilsofDaqingCity()AsHgCdCrNiCuPbZn3002512223043082882862968305440202212019240000004800000040000000000000000000000:n=30822.12.1.1Hakanson[9](RI),(Eri),RIEri,33Table3ClassificationofpollutionpotentialecologicalriskRI150Eri40150(RI30040(Eri80300(RI60080(Eri160RI∋600160(Eri320Eri∋320:Cif=Ci/Cin(1)Eir=Tir%Ci/Cin(2)RI=ni=1Eir=ni=1(Tir%Ci/Cin)(3)(1),(2),(3),Cfii;Cii;Cni,,[10];Tri,HaKanson)∗)∗[11],,HgCd79.429.12.1.2(3),(2)RI15086%,;11%;1%RI600,,2(RI)Fig.2TotalpotentialriskindexofsurfacesoilsinDaqingCity(RI)(2),Hg,11.90%(3)Hg[12](4),,,,,,,4,8.33%Cd/(3),(4),1191:Cd,,Cd27.38%,,,,,,,,,20)∗3Fig.3EcologicalrisklevelofsingleheavymetalinsurfacesoilsofDaqingCity4HgCdFig.4DistributionofHgandCdecologicalriskinsurfacesoilsofDaqingCity12031[13],,HgCd2.22.2.13:;;,,[14]2EDI(70),[mg/(kg+d)],(4)(5)EDI=CS%IR%CF%EF%EDBW%AT(4)EDI=CS%CF%SA%AF%ABS%EF%EDBW%AT(5)(4)(5),CS(mg/kg);CF;IR;EF;ED;SA;AF;ABS;BW;AT44Table4ParametersofexposureassessmentmodelsIR(mg/d)100-CF(kg/mg)10-610-6AF[mg/(cm2+d)]-1EF(d/a)350350ED(a)3030BW(kg)6060AT(d)365%30365%30AT(d)365%70365%70SA(cm2/d)-5000ABS-0.001:[141516],EPA[15],(RISK)10-6()AsCd;(HQ,HazardQuotient),HQ1,,HQ1,HgPb(6)(7)RISK=EDI%SF(6)HQ=EDI/RFD(7)(6),(7),SF();RFD55SFRFDTable5ValuesofSFandRFDofmodelparametersSF[mg/(kg+d)]RFDmg/(kg+d)Cd6.16.1--Hg--0.00030.0003:[16]2.2.2Cd,2.78%10-6,1.96%10-7,5.13%10-7;,1.39%10-7,9.82%10-9,2.57%10-810-6,CdHg,0.02,6.72%10-5,0.30%10-4;,0.43%10-4,3.58%10-6,1.48%10-51,,Hg3,308,8HgCd,Hg,Cd,1211:,HgCd,,,HgCd,,,,,,:[1],,,.[J].,2002,14(5):27~28.[2]ShomarBH,MllerG,YahyaA.GeochemicalfeaturesoftopsoilsintheGazaStrip:Naturaloccurrenceandanthropogenicinputs[J].EnvironmentalResearch,2005,(98):372-382.[3],,,.[J].,2005,25(1):108~112.[4],,,[J].,2006,26(4):420~425.[5].[M].:,1984~2002.[6],.[J].,2005,15(1):32~33.[7],,.[J].,2003,11(2):143~151.[8]MullerG.IndexofgeoaccumulationinsedimentsoftheRhineRiver[J].Geojourna,l1979,2:108-118.[9]HakansonL.Anecologicalriskindexforaquaticpollutioncontrolasedimenttologicalapproach[J].WaterResearch,1980,14(8):975-1001.[10],,,.[M].:,1989.[11]USEnvironmentalProtectionAgency.ExposureFactorsHandbook[S].EPA/600/P-95/002.1997:104-126.[12].[M].:.1999.[13],.[J].,2001,20(1):43~47.[14]USEnvironmentalProtectionAgency.RiskAssessmentGuidanceforSuperfundVolumeIHumanHealthEvaluationManual(PartA)[S].EPA/540/1-89/002,1989:35-52.[15]USEnvironmentalProtectionAgency.SuperfundPublicHealthEvaluationManual[S].EPA/540/1-86/060,1986:1-52.[16]USEnvironmentalProtectionAgency.SupplementalGuidanceforDevelopingSoilScreeningLevelsforSuperfundSites[M].WashingtonDC:WashingtonOfficeofSolidWasteandEmergencyResponse,USEnvironmentalProtectionAgency,2001:4-24.AssessmentonPotentialEcologicalHazardandHumanHealthRiskofHeavyMetalsinUrbanSoilsofDaqingCityTANGJie,CHENChuyu,LIHaiyi,ZHANGTianqin,XIAORui(CollegeofEnvironmentalandResourcesSciences,JilinUniversity,Changchun,Jilin130012,China)Abstract:Basedonurbanfunctionzonedivisions,308surfacesampleswerecollectedfromtheurbansoilsofDaqingCity,HeilongjiangProvince,China,anddeterminedinlaboratory.ThepotentialecologicalhazardofheavymetalsinthesurfacesoilswereassessedbyusingHakanson−spotentialriskindex.Theresultsshowthatthedegreesofheavymetalspollutionwerelowerinthesurfacesoilsofthestudyarea,withlowerpotentialecologicalrisk.Asforthemainhazardelements,Hghashigherecologicalrisk,ofwhich11.9%samplesareabovetheheavyriskleve;lCdhaslowerecologicalrisk,however,sampleswithmiddlerisklevelarewidelydistributed.Inaddition,theassessmentresultsofhumanhealthriskshowthatthecancerandnoncancerhazardindexesofCdandHgarebothbelowthethresholdvalues,indicatingthattheeffectsofCdandHgpollutiononhumanhealtharelightintheurbanareaofDaqingCity.Keywords:urbansoi;lheavymeta;lpotentialecologicalriskindex;humanhealthyrisk;DaqingCity12231