Refined Source Apportionment of Atmospheric PM2.5 in a Typical City in Northwest China

doi:10.4209/aaqr.2020.04.0146

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 粉尘与环境研究室

	Refined Source Apportionment of Atmospheric PM2.5 in a Typical City in Northwest China
	Wang, Yiting; Zhang, Yong; Li, Xia; Cao, Junji
刊名	AEROSOL AND AIR QUALITY RESEARCH
	2021
卷号	21 期号:1 页码:11
关键词	Xixian new district PM2.5 CAS-HERM WRF-CHEM
ISSN号	1680-8584
DOI	10.4209/aaqr.2020.04.0146
通讯作者	Cao, Junji(cao@loess.llqg.ac.cn)
英文摘要	The Xixian New District (XXND), established in 2014, is the seventh national-level new district in China, but research on air pollution there has been limited. This study focused on the characteristics and sources of PM2.5 in XXND from 2017 to 2018. The average annual PM2.5 mass was 67 mu g m(-3); loadings were high in winter and low in summer. Organic carbon (18.2%), nitrate (17.0%), and sulfate (13.1%) were the main chemical components of PM2.s. A refined statistical assessment of sources was conducted using the CAS-HERM receptor model, and it showed that primary sources accounted for similar to 58.5% of the PM2.5 annual mass, of which dust accounted for 23.3% (road, construction, and soil dust accounted for 11.4%, 8.0% and 3.9%, respectively) while motor vehicles contributed 10.1% (diesels 8.7% and gasoline vehicles 1.4%). Secondary sources for sulfates, nitrates, and organic aerosols accounted for similar to 41.5% of the PM2.5 mass. A complementary analysis using the WRF-CHEM model showed that regional transport accounted for 60.8% of the PM2.5 during the winter high-pollution period, which also implies the importance of secondary aerosols.
资助项目	special project of joint prevention and control of air pollution in Guanzhong of Shaanxi province[2017YFC0212200] ; Xianyang source apportionment project
WOS关键词	FINE PARTICULATE MATTER ; ANTHROPOGENIC EMISSIONS ; XIAN ; HAZE ; POLLUTION ; WINTER
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	TAIWAN ASSOC AEROSOL RES-TAAR
WOS记录号	WOS:000600584400005
资助机构	special project of joint prevention and control of air pollution in Guanzhong of Shaanxi province ; Xianyang source apportionment project
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/15734]
专题	地球环境研究所_粉尘与环境研究室
通讯作者	Cao, Junji
作者单位	Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys KLACP, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yiting,Zhang, Yong,Li, Xia,et al. Refined Source Apportionment of Atmospheric PM2.5 in a Typical City in Northwest China[J]. AEROSOL AND AIR QUALITY RESEARCH,2021,21(1):11.
APA	Wang, Yiting,Zhang, Yong,Li, Xia,&Cao, Junji.(2021).Refined Source Apportionment of Atmospheric PM2.5 in a Typical City in Northwest China.AEROSOL AND AIR QUALITY RESEARCH,21(1),11.
MLA	Wang, Yiting,et al."Refined Source Apportionment of Atmospheric PM2.5 in a Typical City in Northwest China".AEROSOL AND AIR QUALITY RESEARCH 21.1(2021):11.