气候变化领域集成服务门户(CCPortal): High particulate carbon deposition in Lhasa—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 Lhasa—a typical city in the Himalayan–Tibetan Plateau due to local contributions
	Yan F.; Wang P.; Kang S.; Chen P.; Hu Z.; Han X.; Sillanpää M.; Li C.
发表日期	2020
ISSN	20734441
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 Lhasa—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. © 2020 Elsevier Ltd
英文关键词	Black carbon; Dry and wet deposition; Lhasa; Organic carbon
语种	英语
scopus关键词	Chemosphere
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/158446
作者单位	Department of Green Chemistry, LUT University, Sammonkatu 12, Mikkeli, FI-50130, Finland; Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China; National Climate Center, China Meteorological Administration, Beijing, 100081, China; State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Yan F.,Wang P.,Kang S.,等. High particulate carbon deposition in Lhasa—a typical city in the Himalayan–Tibetan Plateau due to local contributions[J]. 中国科学院西北生态环境资源研究院,2020,247.
APA	Yan F..,Wang P..,Kang S..,Chen P..,Hu Z..,...&Li C..(2020).High particulate carbon deposition in Lhasa—a typical city in the Himalayan–Tibetan Plateau due to local contributions.,247.
MLA	Yan F.,et al."High particulate carbon deposition in Lhasa—a typical city in the Himalayan–Tibetan Plateau due to local contributions".247(2020).