Contributions of aerosol composition and sources to particulate optical properties in a southern coastal city of China

doi:10.1016/j.atmosres.2019.104744

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

	Contributions of aerosol composition and sources to particulate optical properties in a southern coastal city of China
	Tian, Jie 4,5,6; Wang, Qiyuan 4,5,6; Han, Yongming 4,5; Ye, Jianhuai 1; Wang, Ping 2; Pongpiachan, Siwatt 3; Ni, Haiyan 4; Zhou, Yaqing 4; Wang, Meng 4; Zhao, Youzhi 2
刊名	ATMOSPHERIC RESEARCH
	2020-05-01
卷号	235 页码:10
关键词	PM2.5 Light extinction Chemical composition Source apportionment
ISSN号	0169-8095
DOI	10.1016/j.atmosres.2019.104744
通讯作者	Wang, Qiyuan(wangqy@ieecas.cn) ; Cao, Junji(cao@loess.llqg.ac.cn)
英文摘要	The contributions of chemical composition and emission sources to aerosol optical properties were evaluated for a coastal city in southern China. The average dry light scattering coefficient (b(scat,dry)) and light absorption coefficient (b(abs)) were 32.5 +/- 15.5 Mm(-1) and 8.8 +/- 4.7 Mm(-1), respectively. Diurnal cycles in b(scat,dry) and b(abs) were observed with peak values in the morning and at night. Both b(scat,dry )and b(abs) varied with wind speeds and directions, and thus affected by transport pathways. Chemical composition data for 12-h PM2.5 samples were used with the revised IMPROVE algorithm and a Hybrid Environmental Receptor Model to evaluate aerosol composition and source contributions to dry light extinction (b(ext,dry) = b(scat,dry) b(abs)), respectively. Ammonium sulfate and organic matter were the dominant contributors to b(ext,dry) followed by elemental carbon, sea salt, fine soil, and ammonium nitrate. The six PM2.5 sources identified were secondary sulfate source, biomass burning, marine emission, fugitive dust, traffic-related emission, and shipping emission. Marine emission and secondary sulfate source were the largest contributors of b(ext,dry) during the daytime and nighttime, respectively. Backward trajectory analysis further explored the impact of potential sources to b(ext,dry) at Sanya from surrounding regions. The results of our study would be useful for improving models of radiative effects from different sources in this area.
资助项目	National Natural Science Foundation of China[41661144020] ; National Natural Science Foundation of China[41705106] ; Key Research and Development Program of Shaanxi Province[2018-ZDXM3-01] ; China Postdoctoral Science Foundation[2018M633523] ; China Postdoctoral Science Foundation[2015M580890] ; Chinese Academy of Sciences[KLACP1703] ; Chinese Academy of Sciences[SKLLQG1529] ; Youth Innovation Promotion Association, Chinese Academy of Sciences[2019402]
WOS关键词	SOURCE APPORTIONMENT ; LIGHT EXTINCTION ; CHEMICAL-CHARACTERIZATION ; SOURCE PROFILES ; BLACK CARBON ; PM2.5 MASS ; URBAN AREA ; GUANGZHOU ; IMPROVE ; VISIBILITY
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000525322800011
资助机构	National Natural Science Foundation of China ; Key Research and Development Program of Shaanxi Province ; China Postdoctoral Science Foundation ; Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/12593]
专题	地球环境研究所_粉尘与环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Wang, Qiyuan; Cao, Junji
作者单位	1.Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA 2.Hainan Trop Ocean Univ, Sanya 572022, Peoples R China 3.NIDA, Sch Social & Environm Dev, Bangkok 10240, Thailand 4.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 5.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 6.Shaanxi Key Lab Atmospher & Haze Fog Pollut Preve, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Tian, Jie,Wang, Qiyuan,Han, Yongming,et al. Contributions of aerosol composition and sources to particulate optical properties in a southern coastal city of China[J]. ATMOSPHERIC RESEARCH,2020,235:10.
APA	Tian, Jie.,Wang, Qiyuan.,Han, Yongming.,Ye, Jianhuai.,Wang, Ping.,...&Cao, Junji.(2020).Contributions of aerosol composition and sources to particulate optical properties in a southern coastal city of China.ATMOSPHERIC RESEARCH,235,10.
MLA	Tian, Jie,et al."Contributions of aerosol composition and sources to particulate optical properties in a southern coastal city of China".ATMOSPHERIC RESEARCH 235(2020):10.