DOI: 10.1016/j.atmosenv.2020.117414
论文题名: Biomass burning sources and their contributions to PM10 concentrations over countries in mainland Southeast Asia during a smog episode
作者: Vongruang P. ; Pimonsree S.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 228 语种: 英语
英文关键词: Air quality
; Particles (particulate matter)
; Ambient air quality standards
; Biomass-burning
; Control strategies
; Mainland Southeast Asia
; National level
; Particulate Matter
; PM10 concentration
; World Health Organization
; Sensitivity analysis
; air quality
; ambient air
; biomass burning
; concentration (composition)
; particle size
; particulate matter
; smog
; air quality
; air quality standard
; ambient air
; Article
; biomass
; Cambodia
; China
; control strategy
; Laos
; Myanmar
; particulate matter
; priority journal
; smog
; Southeast Asia
; Thailand
; Viet Nam
; Cambodia
; China
; Laos
; Myanmar
; Thailand
; Viet Nam
学科: Air quality control
; Biomass burning
; PM10
; Southeast Asia
; WRF-CMAQ
中文摘要: Severe particulate matter problems are known to occur frequently in mainland Southeast Asia (MSEA) during times of intensified biomass burning (BB). Therefore, the objectives of this study are to investigate BB characteristics and their impacts on PM10 concentrations in MSEA during a smog episode that took place in March 2012. According to the analysis of our study, PM10 was emitted from BB and accounted for 72% of all sources. Using the WRF-CMAQ modeling system, the current study showed that severe PM10 levels in MSEA exceeded the World Health Organization (WHO) ambient air quality standard (AAQS) recommended safe level of air quality by 51%. Subsequently, based on aggregated monthly data, the area average PM10 concentration was found to be 80 μg/m3 over MSEA. In addition, the model showed that the major source of particulate matter was from BB and contributed to 49% of ambient PM10 concentrations in MSEA while it specifically contributed 73%, 69%, 59%, 45%, 33%, and 31% in Laos, Myanmar, Cambodia, Thailand, China, and Vietnam, respectively. Based on a sensitivity analysis, we found that every 1 Tg of PM10 increased in MSEA would result in a 27.8 μg/m3 increase in PM10 concentrations in MSEA. However, these research findings tend to vary from one country to another, where for every 1 Tg of PM10 increased, it would result in a 60.6, 50.8, 17.6, 14.1, 13.0, and 9.9 μg/m3 increase in PM10 concentrations in Laos, Myanmar, Thailand, China, Cambodia, and Vietnam, respectively. These findings assume great significance those who wish to establish PM10 control strategies at both regional and national levels, given that BB needs to be recognized as the primary genesis of PM10 problems. © 2020 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160391
Appears in Collections: 气候变化与战略
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作者单位: Environmental Health, School of Medicine, University of PhayaoPhayao 56000, Thailand; Atmospheric Chemistry and Climate Model Laboratory, Atmospheric Pollution and Climate Change Research Unit, School of Energy and Environment, University of PhayaoPhayao 56000, Thailand
Recommended Citation:
Vongruang P.,Pimonsree S.. Biomass burning sources and their contributions to PM10 concentrations over countries in mainland Southeast Asia during a smog episode[J]. Atmospheric Environment,2020-01-01,228