Please use this identifier to cite or link to this item: http://umt-ir.umt.edu.my:8080/handle/123456789/5603
Title: Source apportionment and health risk assessment of PM10 in a naturally ventilated school in a tropical environment
Authors: Mohamad N
Latif M.T
Khan M.F
Keywords: Particulatematter
Children
School environment
Chemical composition
Issue Date: 18-Nov-2015
Publisher: Ecotoxicology and Environmental Safety
Abstract: This studyaimedtoinvestigatethechemicalcompositionandpotentialsourcesofPM10 as wellasassess the potentialhealthhazardsitposedtoschoolchildren.PM10 samples weretakenfromclassroomsata school inKualaLumpur'scitycentre(S1)andoneinthesuburbancityofPutrajaya(S2)overaperiodof eight hoursusingalowvolumesampler(LVS).Thecompositionofthemajorionsandtracemetalsin PM10 werethenanalysedusingionchromatography(IC)andinductivelycoupledplasma-massspec- trometry (ICP-MS),respectively.TheresultsshowedthattheaveragePM10 concentration insidethe classroom atthecitycentreschool(82g/m3) washigherthanthatfromthesuburbanschool(77g/m3). Principal componentanalysis-absoluteprincipalcomponentscores(PCA-APCS)revealedthatroaddust wasthemajorsourceofindoorPM10 at bothschoolinthecitycentre(36%)andthesuburbanlocation (55%). Thetotalhazardquotient(HQ)calculated,basedontheformulasuggestedbytheUnitedStates EnvironmentalProtectionAgency(USEPA), wasfoundtobeslightlyhigherthantheacceptablelevelof1, indicating thatinhalationexposuretoparticle-boundnon-carcinogenicmetalsofPM10, particularlyCr exposurebychildrenandadultsoccupyingtheschoolenvironment,wasfarfromnegligible
URI: http://hdl.handle.net/123456789/5603
ISSN: 0147-6513
Appears in Collections:Journal Articles

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