预览加载中，请您耐心等待几秒...

济南市大气降尘地球化学特征及污染端元研究.docx

预览
1/3
2/3
3/3

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

济南市大气降尘地球化学特征及污染端元研究 Title:GeochemicalCharacteristicsandPollutionSourcesofAtmosphericDustfallinJinanCity Abstract: Atmosphericdustfallisanimportantcarrierofvariouspollutantsinurbanareas,whichcanposesignificantriskstohumanhealthandtheenvironment.TounderstandthegeochemicalcharacteristicsandpollutionsourcesofatmosphericdustfallinJinanCity,thisstudyconductedacomprehensiveinvestigationandanalysisofdustfallsamplescollectedfromdifferentregionswithinthecity.TheresultsshowedthatthedustfallinJinanCityprimarilyconsistedofcrustalelementssuchasSi,Al,andFe,aswellasanthropogenicpollutantsincludingheavymetals.Additionally,theconcentrationsofheavymetalsindustfallwerehigherinindustrialareascomparedtoresidentialareas.Thecombinationofgeochemicalanalysis,sourceapportionmentmodeling,andspatialdistributionmappingprovidedvaluableinformationforidentifyingandmanagingthesourcesofatmosphericpollutioninJinanCity. 1.Introduction Atmosphericdustfallreferstothedepositionofairborneparticlesontosurfacessuchasroofs,roads,andvegetation.Itcancarrynumerouspollutants,includingheavymetals,organiccompounds,andmicroorganisms,whichcanhaveadetrimentalimpactonhumanhealthandtheenvironment.JinanCity,thecapitalofShandongProvinceinChina,hasexperiencedrapidurbanizationandindustrializationinrecentdecades,leadingtoincreasedpollutionandenvironmentalconcerns.Therefore,understandingthegeochemicalcharacteristicsandpollutionsourcesofatmosphericdustfalliscrucialforeffectiveenvironmentalmanagementandpollutioncontrolinthecity. 2.Methodology 2.1SampleCollection DustfallsampleswerecollectedfromvariousdistrictsofJinanCityusingenameldishes,whichwereexposedoutdoorsforafixedperiod.Thesamplinglocationsincludedresidential,commercial,andindustrialareas,aswellassitesalongmajortrafficarteries.AtotalofXXsampleswerecollectedandtransportedtothelaboratoryforanalysis. 2.2GeochemicalAnalysis ThecollecteddustfallsampleswereanalyzedformajorandtraceelementsusingX-rayfluorescence(XRF)andinductivelycoupledplasmamassspectrometry(ICP-MS),respective