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dc.contributor.authorChan, Andrew Yiu-chungen_US
dc.contributor.authorVowles, Peteren_US
dc.contributor.authorMcTainsh, Granten_US
dc.contributor.authorSimpson, Rodneyen_US
dc.contributor.authorCohen, D.en_US
dc.contributor.authorBailey, G.en_US
dc.contributor.authorMcOrist, G.en_US
dc.description.abstractPM10 (particulate matter with aerodynamic diameter <10 孩 samples of Brisbane air were collected and fractionated into six size fractions (<0.5, 0.5-0.61, 0.61-1.3, 1.3-2.7, 2.7-4.9 and 4.9-10 孩 with a high volume cascade impactor. The chemical composition of the samples was analysed by techniques including Ion Beam Analysis. On average, 42% of the aerosol mass is in the >2.7-孠size fraction, with the <0.5-孠size fraction also contributes 41% of the aerosol mass. The composition of the <1.3-孠aerosols is significantly different to that of the >1.3-孠aerosols. The aerosol mass and concentrations of chemical components related to human activities show a bimodal size-distribution pattern, with most of the mass in the accumulation range (<0.65 孩. The size geometric mean of aerosol mass is 0.96 孠in the samples collected from an industrial/residential site, and is 1.74 孠in the samples collected from a suburban site. The size geometric mean of concentrations of chemical components related to human activities ranges from 0.16 to 0.57 孮 The concentrations of crustal matter and sea salt show a unimodal size-distribution pattern, and with geometric means of 3.73 and 4.12 孬 respectively. Four source factors were resolved by multivariate analysis techniques for the size-fractionated aerosol samples, namely the soil, sea salt, organics and vehicular exhausts factors. The source fingerprints of the factors vary in the size ranges and have implications on the formation and dispersal processes of the particles. On average, the soil and sea salt factors contribute more than 80% of the aerosol mass in the >2.7-孠fractions, while the organics and vehicular exhausts factors explain almost all the aerosol mass in the <0.61-孠fractions.en_US
dc.publisherElsevier Scienceen_US
dc.relation.ispartofjournalScience of the Total Environmenten_US
dc.subject.fieldofresearchHISTORY AND ARCHAEOLOGYen_US
dc.titleCharacterisation and source Identification of PM10 aerosol samples collected with a high volume cascade impactor in Brisbaneen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.hasfulltextNo Full Text

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