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DOI	10.1016/j.atmosres.2021.105472
	Sources and light absorption characteristics of water-soluble organic carbon (WSOC) of atmospheric particles at a remote area in inner Himalayas and Tibetan Plateau
	Li, Yawei; Yan, Fangping; Kang, Shichang; Zhang, Chao; Chen, Pengfei; Hu, Zhaofu; Li, Chaoliu
通讯作者	Li, CL (通讯作者)，Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China.
发表日期	2021
ISSN	0169-8095
EISSN	1873-2895
卷号	253
英文摘要	Water-soluble organic carbon (WSOC) is an important component of carbonaceous aerosols. Increasing evidences show that WSOC absorbs and scatters sunlight in the atmosphere, which is one of the key components of climate change. Despite numbers of related studies, understanding of basic characteristics of WSOC is limited at remote region, such as the Himalayas and Tibetan Plateau (HTP), one of the remotest regions in the world with weak local anthropogenic activities. In this study, we conducted a year-round investigation of multiple aerosol species at Nam Co, a pristine station in inner part of the HTP. The results showed that the annual mean concentrations of PM2.5 and its WSOC were 8.9 +/- 5.4 mu gm(-3) and 249 +/- 111 ng m(-3), respectively, which was among the lowest values in the HTP, representing a clean environment. WSOC of PM2.5 and total suspended particle (TSP) samples were mainly derived from combustion emissions and fine particle of local surface soil, respectively, indicating significant contribution of local sources of the HTP to TSP samples. Similarly, due to the influence of surface soil, respective absorption per mass of WSOC at 365 nm (alpha/pWSOC) of TSP (1.74 +/- 0.94 m(2) g(-1)) was significantly higher than that of PM2.5 (1.22 +/- 0.43 m(2) g(-1)). Seasonally, high and low WSOC concentrations and alpha/pWSOC values appeared at non-monsoon and monsoon periods, respectively. This study provides observational constraints for related researches such as modelling of the environmental impact of WSOC in the HTP.
关键词	BROWN CARBON BLACK CARBON SEASONAL-VARIATIONS MIXING STATE NEW-DELHI NAM CO AEROSOL PM2.5 EXTRACTS STATIONS
英文关键词	Nam Co; Aerosols; Light absorption; Sources
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000624606900001
来源期刊	ATMOSPHERIC RESEARCH
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254823
作者单位	[Li, Yawei; Zhang, Chao; Li, Chaoliu] Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China; [Li, Yawei; Kang, Shichang; Zhang, Chao] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Yan, Fangping; Kang, Shichang; Chen, Pengfei; Hu, Zhaofu; Li, Chaoliu] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China; [Kang, Shichang; Li, Chaoliu] CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Li, Yawei,Yan, Fangping,Kang, Shichang,et al. Sources and light absorption characteristics of water-soluble organic carbon (WSOC) of atmospheric particles at a remote area in inner Himalayas and Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2021,253.
APA	Li, Yawei.,Yan, Fangping.,Kang, Shichang.,Zhang, Chao.,Chen, Pengfei.,...&Li, Chaoliu.(2021).Sources and light absorption characteristics of water-soluble organic carbon (WSOC) of atmospheric particles at a remote area in inner Himalayas and Tibetan Plateau.ATMOSPHERIC RESEARCH,253.
MLA	Li, Yawei,et al."Sources and light absorption characteristics of water-soluble organic carbon (WSOC) of atmospheric particles at a remote area in inner Himalayas and Tibetan Plateau".ATMOSPHERIC RESEARCH 253(2021).