etheweights.Analysisofdatabasedonapreliminaryanalysisofthreekindsofpollutantsfromthesource.ChapterIII:HydridegengrationatomicfluorescencespectrometricmethodWasadoptedforthedeterminationofAs(111)andAs(V)intheatmosphericparticlesanddustfall.Theamountofreducingagent,acidmediumanditsacidity,carriergasandshieldgasflowrateandobservationheightofthefluorescenceintensitywereinvestigated,itantelements.Inthebestconditions,thedetectionlimitWas0.34pg/L,therecoveryrangefrom95.6%to103.3%,therelativestandarddeviationWasaboutO.8%.ThismethodWasfeaturedbyeasyoperation,fastspeedandithasAbstractbeenappliedtotheanalysisofarsenicinthedusffallwithsatisfactoryresults.ChapterIII:prehensive.iationsofthearsenicandtoxicityshouldbestudiedfurther.KeywordAirQualityAtmosphericparticlesArsenicAtomicfluorescencespectrometry
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