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dc.contributor.authorZhu, Chong-Shuen_US
dc.contributor.authorChen, Cheng-Chiehen_US
dc.contributor.authorCao, Jun-Jien_US
dc.contributor.authorTsai, Chuen-Jinnen_US
dc.contributor.authorChou, Charles C. -K.en_US
dc.contributor.authorLiu, Shaw-Chenen_US
dc.contributor.authorRoam, Gwo-Dongen_US
dc.date.accessioned2014-12-08T15:06:37Z-
dc.date.available2014-12-08T15:06:37Z-
dc.date.issued2010-07-01en_US
dc.identifier.issn1352-2310en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.atmosenv.2010.04.042en_US
dc.identifier.urihttp://hdl.handle.net/11536/5183-
dc.description.abstractFine particles (PM(2.5)) and nanoparticles (PM(0),1)were sampled using Dichotomous sampler and MOUDI, respectively, in Xueshan Tunnel, Taiwan. Eight carbon fractions were analyzed using IMPROVE thermal-optical reflectance (TOR) method. The concentrations of different temperature carbon fractions (OC1-OC4, EC1-EC3) in both PM(2.5) and PM(0.1) were measured and the correlations between OC and EC were discussed. Results showed that the ratios of OC/EC were 1.26 and 0.67 for PM(2.5) and PM(0.1), respectively. The concentration of EC1 was found to be more abundant than other elemental carbon fractions in PM(2.5), while the most abundant EC fraction in PM(0.1) was found to be EC2. The variation of contributions for elemental carbon fractions was different among PM(2.5) and PM(0.1) samples, which was partly owing to the metal catalysts for soot oxidation. The correlations between char-EC and soot-EC showed that char-EC dominated EC in PM(2.5) while soot-EC dominated EC in PM(0.1). Using eight individual carbon fractions, the gasoline and diesel source profiles of PM(0.1) and PM(2.5) were extracted and analyzed with the positive matrix factorization (PMF) method. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectElemental carbonen_US
dc.subjectOrganic carbonen_US
dc.subjectTunnelen_US
dc.subjectSource profilesen_US
dc.titleCharacterization of carbon fractions for atmospheric fine particles and nanoparticles in a highway tunnelen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.atmosenv.2010.04.042en_US
dc.identifier.journalATMOSPHERIC ENVIRONMENTen_US
dc.citation.volume44en_US
dc.citation.issue23en_US
dc.citation.spage2668en_US
dc.citation.epage2673en_US
dc.contributor.department環境工程研究所zh_TW
dc.contributor.departmentInstitute of Environmental Engineeringen_US
dc.identifier.wosnumberWOS:000279889800001-
dc.citation.woscount33-
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