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2022, 41(2) 402-410 DOI:
ISSN: 1004-5589 CN: 22-1111/P |
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Geochemical characteristics and risk assessment of heavy metals elements in Weisha River,JilinCit |
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LITong,LUJilong,LAIYawen,ZHAOWei,TANGXiaodan,LANTian |
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CollegeofGeoexplorationScienceandTechnology,JilinUniversity,Changchun130026,China |
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Abstract:
InordertostudythegeochemicalcharacteristicsofheavymetalsinWeishaRiver,JilinCityand evaluatethehealthriskoftheriver,thepollutioncharacteristicsofCu,Pb,Zn,Cd,AsandHginWeishaRiver wereevaluatedbythesinglefactorpollutionindexmethod,andthetotalpollutionsituationofwaterqualitywas evaluatedbytheheavymetalpollutionindexmethod(HPI).Finally,thehumanhealthriskassessmentmodelwas usedtoevaluatethehealthriskcausedbydrinkingwaterinthestudyarea.TheresultsshowthattheoverallpollutiondegreeofWeishaRiverisrelativelylight,andPbandHginindividualsamplesarelightpollution.Theevaluationresultsshowthatfoursamplepointsarepolluted,andthepollutedpointsaregreatlyaffectedbytailings.The percapitaannualhealthriskcausedbycarcinogenicelementsAsandCdthroughdrinkingwaterisCd>As,and thehealthriskvalueofchildrenisabout3~4timesthatofadults,whichismorevulnerabletopollution.Therisk causedbynoncarcinogenicelementsCu,Pb,ZnandHgisfarlowerthantherecommendedvalue,buttherisk valueofPbhasexceededthenegligiblerisklevel.Thetotalannualhealthriskpercapitaishigherthanthemaxi mumacceptablerisklevelrecommendedbySweden,NetherlandsandUK |
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Keywords:
heavymetalelements
geochemicalcharacteristics
pollutionindex
healthriskassessmen
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