铅锌矿区及周边土壤铅_锌_镉_铜的污染健康风险评价

,,,3(,310018):32PbZnCdCu.,PbZnCdCuPbZnCuCd;PbZnCdCu4,PbZn;PbZnCdCu4;PbZnCdCuPbCdCuZn;,3;PbZnCdCu,.:;;;:X53;X82011:A:025023301(2008)0822327204:2007208209;:2007210216:(40771100);(40432004);:(1979),,,3S,E2mail:[e-mail]3,E2mail:[e-mail]kforMinedSoilsBasedonCriticalThresholdsforLead,Zinc,CadmiumandCopperLIJing,YUTian2ming,ZHOUJie,XIEZheng2miao(DepartmentofEnvironmentalScienceandEngineering,HangzhouDianziUniversity,Hangzhou310018,China)Abstract:Contentsofheavymetals(Pb,Zn,Cd,Cu)insoilsintermsofpoint,lineandareaaroundaleadPzincmineinDongguantown,Zhejiang,China,wereinvestigatedtoevaluateenvironmentalqualitybasedonindexandhealthriskassessmentmodelforsafetyofsoils2human.TheorderforaveragecontentsofPb,Zn,Cd,Cuintermsofpoint,lineandareawerePbZnCuCd.ThecontentsofPb,Zn,Cd,Cuintermsofpointandlineweremuchhigherthanthatintermsofarea,especiallyPbandZncontents.Thedistributionofsoilheavymetalswasasymmetric.Thecalculatedcriticalthresholdinsoilforadultwashigherthanthatforchildren.TheaverageorderofindividualriskindexforchildrenandadulthealthwasPbCdCuZn.Childrenweremoreeasilyaffectedbysoilheavymetals,forthathazardindexesforchildrenwere3timesofadulthealth.TheenvironmentalqualityofDongguantownwasmainlysafecorrespondingly.TheheavymetalenvironmentalqualityintermsofpointandlinenearaleadPzincminehadhigherhazardriskandmightbringpotentialhazardtolocalresidents.Keywords:soil;heavymetals;humanhealth;riskassessment2050,,,,.,.,[1,2].,.PbZnCdCu,,,,,[3,4].,PbZnCdCu.,(GB1561821995),,[5,6].,PbZnCdCu,,(19)(011115km)(34)3PbZnCdCu.29820088ENVIRONMENTALSCIENCEVol.29,No.8Aug.,2008©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(19)(011115km)(34).150,,,,800hm2.,020cm.100.112PbZnCdCu,3,HF2HClO42HNO3[7],AA6800,100%.SPSS.11311311,,2.:():Pi=ciPSi():P={[ciPSi)2max+(ciPSi)2ave]P2}1P2,Pii;cii(mgkg-1);Sii(mgkg-1);(ciPSi)max;(ciPSi)ave.11312,:;(GB1561821995),1.,[8].pH(GB1561821995)[8,9],,1.::Pi1;Pi1;:2.1Pmgkg-1Table1EvaluatedstandardsofheavymetalconcentrationsinsoilandvegetableenvironmentPmgkg-1pH6150250200013050615024158418012019182Table2Soilqualitygradingbasedonpollutionindices1)P1P0172017P131P242P35P31)1211313PbZnCdCu4,CDI,.2[8,9].CDI=(cIRCFFIEFED)(BWAT365),CDI(chronicdailyintake),mg(kgd)-1;c(concentrationofcontaminantintheenvironmentalsample)(,,),mgL-1,mgkg-1,mgm-3;IR(ingestionrateperunittime),mgd-1;CF(conversionfactor),10-6kgmg-1;FI(fractioningestedfromthesiteasafractionofthetotalfromallsourcesinrange010110)(010110),%;EF(exposurefrequency),da-1;ED(exposureduration),a;BW(bodyweightofthereceptor),kg;AT(averagingtime),a.,2:,2;,().823229©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=intakeorexposurereferencedose=CDIRfDHI=CDI1PRfD1+CDI2PRfD2+CDI3PRfD3++CDIiPRfDi=HQsCancerRisk=CDISF,HI(hazardIndex),%;HQ(hazardQuotient),%;RfD(referencedose),mg(kgd)-1;SF(slopefactor),(kgd)mg-1.11314,,,[8,9],,3.3Table3ExposureparametersofhealthriskassessmentmodelsBW7016IR100200ED3010EF300FI010110CF10-6AT70(IARC)(WHO),Cd,4.,(RfD).(USEPA),4.4RfDSFTable4ModelparametersofRfDandSFvalueRfDPmg(kgd)-1SFP(kgd)mg-1Cd01001()P010005()611()Pb010035PZn013PCu0104P2211(19)(011115km)(34)PbZnCdCu5.5:(19)(011115km)(34)PbZnCdCuPbZnCuCd;PbZnCdCu4,PbZn,PbZn34,8090;PbZnCdCu,4.5PbZnCdCuPmgkg-1Table5AverageconcentrationsofPb,Zn,CdandCuinsoilsintermsofpoint,lineandareaPmgkg-1pHPbZnCdCu5156011812552388883927461621415149514401173315335827486713315891217519201611418695382160143213212(GB1561821995)(1)6.6PbZnCdCuTable6IndexofEnvironmentQualityofPb,Zn,CdandCuinsoilsintermsofpoint,lineandareaPb5121355185013016Zn919312111412114015Cd3337132224817Cu7164151163118016P1811915310519411214,PbZnCdCu(,PbZnCu),;2,;2:,PbCdCuZn.:PbZnCdCu,,,PbCdZnCu;PbZnCdCu,,.21392328:©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.().7.7PbZnCdCuPa-1Table7HealthhazardofindividualpersonofPb,Zn,CdandCuinsoilsintermsofpoint,lineandareaPa-1PbZnCdCuHIPbZnCdCuHI1180501001010030100211811512640100401010010065128301477010000100401001014821139001001010110100311405010200100101002010000102201059010010100401001010657:PbZnCdCuPbCdCuZn.,1,,2;,1,,2;,4,3,3.3(1)22PbZnCdCu,,PbCdCuZn,PbZnCu;,.(2)PbZnCdCuPbZnCuCd;PbZnCdCu4,PbZn;PbZnCdCu4,.(3)PbZnCdCuPbCdCuZn;,1,1,1;,4,3.(4).PbZnCdCu,PbZnCdCu,.(5),343,,2,,,.:[1],.[J].,2003,40(2):1612169.[2]LiJ,XieZM,XuJM,etal.RiskAssessmentofHeavyMetalsContaminatedSoilintheVicinityofaLeadPZincMine[J].JournalofEnvironmentalScience,2005,17(6):8812885.[3],,,.[J].,2006,25(5):8432852.[4].[J].,2006,31(5):1932194.[5],.[J].,2000,16(5):41244.[6],,,..[J].,2005,42(4):6662673.[7].[M].:,1999.3052336.[8]ChonHT,LeeJS.HeavymetalcontaminationandhumanriskassessmentaroundsomeabandonedAu2AgandbasemetalminesitesinKorea[D].Seoul:SchoolofCivil,UrbanandGeosystemEngineeringSeoulNationalUniversity,2004.1512744.[9]WcisloE,IovenD,KucharskiR,etal.Humanhealthriskassessmentcasestudy:anabandonedmetalsmelter