干旱区生态环境知识资源中心(Arid): Chemical characterization and source apportionment of fine and coarse atmospheric particulate matter in Doha, Qatar

Arid

DOI	10.1016/j.apr.2020.10.015
	Chemical characterization and source apportionment of fine and coarse atmospheric particulate matter in Doha, Qatar
	Javed, Wasim; Guo, Bing
通讯作者	Javed, W (corresponding author), Texas A&M Univ Qatar, Mech Engn Program, POB 23874, Doha, Qatar.
来源期刊	ATMOSPHERIC POLLUTION RESEARCH
ISSN	1309-1042
出版年	2021
卷号	12 期号:2 页码:122-136
英文摘要	Atmospheric particulate matter of two size fractions (i.e., PM2.5 and PM10) were sampled simultaneously at an urban site in Doha, Qatar, and characterized to measure chemical constituents (including trace elements, organic and elemental carbon (OC/EC), and water-soluble ions). The composition data were applied to mass closure analysis and Positive Matrix Factorization (PMF) model along with detailed wind direction analysis for quantifying and identifying the probable sources of both PM size fractions. The average concentrations of PM2.5 (40 mu g m(-3)) and PM10 (146 mu g m(-3)) were greatly exceeded the WHO air quality thresholds for 7892% of the sampling days. Mass closure indicated the predominance of secondary inorganic aerosol (39%) and EC (7%) in fine PM, while mineral dust contributes 50% to the total mass of coarse particles. PMF identified six major sources of fine and coarse PM, including secondary inorganic aerosols, vehicular emissions, heavy oil combustion, marine aerosols, mineral and fugitive dust. The wind direction analysis indicated that both local and regional sources impact Qatar's air quality attributed to specific wind conditions. Two main sources of heavy oil combustion and secondary aerosols are closely related to regional emissions from shipping vessels and the petrochemical industry in the Gulf region. The desert dust transport mixed with local re-suspended dust and sea-salt particles also contributes considerably to the local PM concentrations. The significant contributions of regional anthropogenic and natural emissions pose a significant challenge in meeting local PM standards, signifying the importance of regional collaboration for better control policies on reducing transboundary air pollution.
英文关键词	PM2.5 PM2.5-10 Chemical mass closure PMF model Backward trajectories PSCF
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000616712000007
WOS关键词	POSITIVE MATRIX FACTORIZATION ; URBAN BACKGROUND SITE ; MASS CLOSURE ; ELEMENTAL ANALYSIS ; DAILY MORTALITY ; PM2.5 ; PM10 ; PARTICLES ; VARIABILITY ; AREA
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349649
作者单位	[Javed, Wasim; Guo, Bing] Texas A&M Univ Qatar, Mech Engn Program, POB 23874, Doha, Qatar
推荐引用方式 GB/T 7714	Javed, Wasim,Guo, Bing. Chemical characterization and source apportionment of fine and coarse atmospheric particulate matter in Doha, Qatar[J],2021,12(2):122-136.
APA	Javed, Wasim,&Guo, Bing.(2021).Chemical characterization and source apportionment of fine and coarse atmospheric particulate matter in Doha, Qatar.ATMOSPHERIC POLLUTION RESEARCH,12(2),122-136.
MLA	Javed, Wasim,et al."Chemical characterization and source apportionment of fine and coarse atmospheric particulate matter in Doha, Qatar".ATMOSPHERIC POLLUTION RESEARCH 12.2(2021):122-136.