气候变化领域集成服务门户(CCPortal): High particulate carbon deposition in Lhasad-a typical city in the Himalayan-Tibetan Plateau due to local contributions

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DOI	10.1016/j.chemosphere.2020.125843
	High particulate carbon deposition in Lhasad-a typical city in the Himalayan-Tibetan Plateau due to local contributions
	Yan, Fangping; Wang, Pengling; Kang, Shichang; Chen, Pengfei; Hu, Zhaofu; Han, Xiaowen; Sillanpaa, Mika; Li, Chaoliu
通讯作者	Li, CL (通讯作者)
发表日期	2020
ISSN	0045-6535
EISSN	1879-1298
卷号	247
英文摘要	The Himalayan-Tibetan Plateau is a typical remote region with sparse air pollution. However, air pollution in cites of the inner Himalayan-Tibetan Plateau is relatively serious due to emissions from local residents. Carbonaceous aerosols are not only an important component of air pollutants that affect the health of local residents but also an important trigger of climate change. In this study, the annual wet and dry deposition rates of carbonaceous particles were investigated in Lhasad-a typical city in the Himalayan-Tibetan Plateau, by collecting precipitation and dry deposition samples and analyzing with a thermal-optical measurement protocol. The results showed that the in-situ annual wet deposition rates of water-insoluble organic carbon (WIOC) and black carbon (BC) were 169.6 and 19.4 mg m(-2) yr(-1), respectively, with the highest and lowest values occurring in the monsoon and non-monsoon periods, respectively. Both precipitation amounts and concentrations of WIOC and BC contributed to wet deposition rates. The dry deposition rates of WIOC and BC in Lhasa had an opposite seasonal variation to that of wet deposition, with annual average deposition rates of 2563.9 and 165.7 mg m(-2) yr(-1), respectively, which were much higher than those of the nearby glacier region and remote area. These values were also much higher than the results from modeling and empirical calculations, indicating that Lhasa is a high pollution point that cannot capture by models. The results in this study have significant implications for the transport of local emissions in Lhasa to the nearby remote and glacier regions. (C) 2020 Elsevier Ltd. All rights reserved.
关键词	LIGHT-ABSORPTION CHARACTERISTICS DISSOLVED ORGANIC-CARBON THERMAL/OPTICAL REFLECTANCE METHOD 3 REMOTE STATIONS BLACK CARBON WET DEPOSITION ATMOSPHERIC DEPOSITION ELEMENTAL CARBON ISOTOPIC COMPOSITION CHEMICAL-COMPOSITION
英文关键词	Black carbon; Organic carbon; Lhasa; Dry and wet deposition
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000527924400038
来源期刊	CHEMOSPHERE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259846
推荐引用方式 GB/T 7714	Yan, Fangping,Wang, Pengling,Kang, Shichang,et al. High particulate carbon deposition in Lhasad-a typical city in the Himalayan-Tibetan Plateau due to local contributions[J]. 中国科学院青藏高原研究所,2020,247.
APA	Yan, Fangping.,Wang, Pengling.,Kang, Shichang.,Chen, Pengfei.,Hu, Zhaofu.,...&Li, Chaoliu.(2020).High particulate carbon deposition in Lhasad-a typical city in the Himalayan-Tibetan Plateau due to local contributions.CHEMOSPHERE,247.
MLA	Yan, Fangping,et al."High particulate carbon deposition in Lhasad-a typical city in the Himalayan-Tibetan Plateau due to local contributions".CHEMOSPHERE 247(2020).