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Effects of day-of-week trends and vehicle types on PM2.5-boundedcarbonaceous compositions
Pongpiachan,S(Pongpiachan,Siwatt)[1,2]; Kositanont,C( Kositanont,Charnwit)[3]; Palakun,J(Palakun,Jittree)[4]; Liu,SX(Liu,Suixin)[2]; Ho,KF(Ho,Kinfai)[2]; Cao,JJ(Cao,Junji)[2]
Source PublicationScience of the Total Environment

Carbonaceous compositions of PM2.5 were measured in the heart of Bangkok from 17th November 2010 to 19th January 2012, and a data set of 94 samples was constructed. Effects of day-of-week trends and vehicle types on PM2.5-bound TC, OC, and EC were carefully investigated. In this study, OC was the most important contributor to the total PM2.5 mass concentration. The average PM2.5-bound OC content measured at CHAOS (18.8 ± 9.18 μg m−3) was approximately 11 times higher than at Chaumont, Switzerland (1.7 μg m−3), but approximately five times lower than at Xi'an, China (93.0 μg m−3). The application of diagnostic binary ratios of OC/EC and estimations of secondary organic carbon (SOC) coupled with autocorrelation plots (Box and Jenkins) highlight the enhanced impacts of traffic emissions, especially from diesel vehicles, on PM2.5-bound carbonaceous compositions on weekdays relative to weekends. Hierarchical cluster analysis (HCA) coupled with principal component analysis (PCA) underline the importance of diesel emissions as the primary contributors of carbonaceous aerosols, particularly during weekdays.

KeywordCarbonaceous Compositions Vehicle Types Bangkok Day-of-week Trends
Indexed BySCI
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Document Type期刊论文
Affiliation1.NIDA Center for Research & Development of Disaster Prevention & Management, School of Social and Environmental Development, National Institute of Development Administration (NIDA), 118Moo 3, Sereethai Road, Klong-Chan, Bangkapi, Bangkok 10240, Thailand;
2.SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences (IEECAS), Xi'an 710075, China;
3.Department of Microbiology, Faculty of Sciences, Chulalongkorn University, Bangkok 10330, Thailand;
4.Faculty of Education, Valaya Alongkorn Rajabhat University under the Royal Patronage (VRU), No.1 Moo 20, Phaholyothin Road, Klong luang, Pathumthani 13180, Thailand
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GB/T 7714
Pongpiachan,S,Kositanont,C,Palakun,J,et al. Effects of day-of-week trends and vehicle types on PM2.5-boundedcarbonaceous compositions[J]. Science of the Total Environment,2015,532(2015):484-494.
APA Pongpiachan,S,Kositanont,C,Palakun,J,Liu,SX,Ho,KF,&Cao,JJ.(2015).Effects of day-of-week trends and vehicle types on PM2.5-boundedcarbonaceous compositions.Science of the Total Environment,532(2015),484-494.
MLA Pongpiachan,S,et al."Effects of day-of-week trends and vehicle types on PM2.5-boundedcarbonaceous compositions".Science of the Total Environment 532.2015(2015):484-494.
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