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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/27594
Title: Characterisation of ambient benzene, toluene, ethylbenzene and m-, p- and o-xylene in an urban traffic area in Bangkok, Thailand
Authors: Wanna Laowagul
Kunio Yoshizumi
Auemphorn Mutchimwong
Patana Thavipoke
Martin Hooper
Hathairatana Garivait
Wongpun Limpaseni
Environmental Research and Training Center
Kyoritsu Woman's University
Mahidol University
Monash University
Chulalongkorn University
Keywords: Environmental Science
Issue Date: 1-Jan-2009
Citation: International Journal of Environment and Pollution. Vol.36, No.1-3 (2009), 241-254
Abstract: Ambient Volatile Organic Compounds (VOCs) were examined in a heavy traffic urban area in Bangkok, Thailand, on focusing monoaromatic compounds of benzene, toluene, ethylbenzene, m-, p- and o-xylene (BTEX). Passive samplers were used to measure ambient BTEX concentrations in the environment close to very congested roads. Prior to the measurement, the validity of passive sampler performance was investigated to be acceptable for actual use. The monitoring was made five times on weekly basis in April-June in 2003. It was observed that averages of BTEX concentrations were as follows: 12.7 μg m?3 for benzene, 72.8 μg m?3 for toluene, 6.0 μg m?3 for ethylbenzene, 25.7 μg m?3 for m-, p-xylene and 13.6 μg m?3 for o-xylene. They are considered to be at very high concentration levels compared to other countries. Their distributions seemed to be in the form of logarithmic normal distribution. On the other hand, cluster analysis suggested that ambient BTEX in this study were derived from automobile exhaust gases. Copyright © 2009 Inderscience Enterprises Ltd.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=57349090438&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/27594
ISSN: 09574352
Appears in Collections:Scopus 2006-2010

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