气候变化领域集成服务门户(CCPortal): Ambient PM2.5, polycyclic aromatic hydrocarbons and biomass burning tracer in Mae Sot District, western Thailand

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DOI	10.1016/j.apr.2019.09.003
	Ambient PM2.5, polycyclic aromatic hydrocarbons and biomass burning tracer in Mae Sot District, western Thailand
	Janta R.; Sekiguchi K.; Yamaguchi R.; Sopajaree K.; Pongpiachan S.; Chetiyanukornkul T.
发表日期	2020
ISSN	13091042
卷号	11 期号:1
英文摘要	Levoglucosan, as a biomass tracer, and sixteen polycyclic aromatic hydrocarbons (PAHs) in PM2.5 ambient air samples collected from Tak Province during smoke and non-smoke episodes were analyzed. The average PM2.5, levoglucosan and total PAHs concentrations in the smoke episode were 61.64 ± 22.85, 1.00 ± 0.41 μg/m3 and 6.32 ± 2.26 ng/m3, respectively. This figures were significantly higher than those recorded during the non-episode (13.76 ± 5.58, 0.12 ± 0.03 μg/m3 and 2.59 ± 0.15 ng/m3, respectively). The predominant PAHs proportions were comprised of Phenanthrene and Benzo[ghi]perylene and levoglucosan concentrations revealed a strong correlation with PM2.5 concentrations, which indicated the source of PM2.5 from biomass burning. Toxicity equivalent (TEQBaP) and the mutagenic equivalent (MEQBaP) levels during the smoke episode were significantly higher than those in the non-smoke episode. Furthermore, lifetime lung cancer risk recorded during smoke episode exceeded the acceptable cancer risk that has been recommended by US-EPA. These results suggest that this area was not only exposed to PAHs that originated from traffic combustion, but was also exposed from biomass burning emissions, particularly during biomass burning season when there is an increased risks of cancer and mutation. Although the exposure time in this area is relatively short, the high dose period of exposure occurs repetitively every year. In addition, backward trajectories showed that most of the air mass was generated from western region of Thailand and they were throughout the burning region not only emitted from local areas, but also from outside the country during the smoke episode. © 2019 Turkish National Committee for Air Pollution Research and Control
英文关键词	Biomass burning tracer; Levoglucosan; Lung cancer risk; PAHs; PM2.5
语种	英语
来源期刊	Atmospheric Pollution Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120677
作者单位	PhD Degree Program in Environmental Science, Environmental Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand; Graduate School of Science and Engineering, Saitama University, Sakura, Saitama, 338-8570, Japan; Department of Environmental Engineering, Faculty of Engineer, Chiang Mai University, Chiang Mai, 50200, Thailand; NIDA Center for Research & Development of Disaster Prevention & Management, School of Social and Environmental Development, National Institute of Development Administration (NIDA), Bangkok, 10240, Thailand; Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand; Science and Technology Research Institute Chiang Mai University, Chiang Mai, 50200, Thailand
推荐引用方式 GB/T 7714	Janta R.,Sekiguchi K.,Yamaguchi R.,et al. Ambient PM2.5, polycyclic aromatic hydrocarbons and biomass burning tracer in Mae Sot District, western Thailand[J],2020,11(1).
APA	Janta R.,Sekiguchi K.,Yamaguchi R.,Sopajaree K.,Pongpiachan S.,&Chetiyanukornkul T..(2020).Ambient PM2.5, polycyclic aromatic hydrocarbons and biomass burning tracer in Mae Sot District, western Thailand.Atmospheric Pollution Research,11(1).
MLA	Janta R.,et al."Ambient PM2.5, polycyclic aromatic hydrocarbons and biomass burning tracer in Mae Sot District, western Thailand".Atmospheric Pollution Research 11.1(2020).