气候变化领域集成服务门户(CCPortal): Carbonaceous particles in the atmosphere and precipitation of the Nam Co region, central Tibet

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DOI	10.1016/S1001-0742(09)60315-6
	Carbonaceous particles in the atmosphere and precipitation of the Nam Co region, central Tibet
	Ming, Jing; Xiao, Cunde; Sun, Junying; Kang, Shichang; Bonasoni, Paolo
发表日期	2010
ISSN	1001-0742
EISSN	1878-7320
卷号	22 期号:11
英文摘要	A continuous air and precipitation sampling for carbonaceous particles was conducted in a field observatory beside Nam Co, Central Tibetan Plateau during July of 2006 through January of 2007. Organic carbon (OC) was the dominant composition of the carbonaceous particles both in the atmosphere (1660 ng/m(3)) and precipitation (476 ng/g) in this area, while the average elemental carbon (BC) concentrations in the atmosphere and precipitation were only 82 ng/m(3) and 8 ng/g, respectively. Very high OC/BC ratio suggested local secondary organic carbon could be a dominant contribution to OC over the Nam Co region, while BC could be mainly originated from Southern Asia, as indicated by trajectory analysis and aerosol optical depth. Comparison between the BC concentrations measured in Lhasa, those at "Nepal Climate Observatory at Pyramid (NCO-P)" site on the southern slope of the Himalayas, and Nam Co suggested BC in the Nam Co region reflected a background with weak anthropogenic disturbances and the emissions from Lhasa might have little impact on the atmospheric environment here, while the pollutants from the Indo-Gangetic Basin of Southern Asia could be transported to the Nam Co region by both the summer monsoon and the westerly.
关键词	carbonaceous particle elemental carbon organic carbon Nam Co Tibetan Plateau
学科领域	Environmental Sciences & Ecology
语种	英语
WOS研究方向	Environmental Sciences
来源期刊	JOURNAL OF ENVIRONMENTAL SCIENCES
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/111586
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Ming, Jing,Xiao, Cunde,Sun, Junying,et al. Carbonaceous particles in the atmosphere and precipitation of the Nam Co region, central Tibet[J]. 中国科学院西北生态环境资源研究院,2010,22(11).
APA	Ming, Jing,Xiao, Cunde,Sun, Junying,Kang, Shichang,&Bonasoni, Paolo.(2010).Carbonaceous particles in the atmosphere and precipitation of the Nam Co region, central Tibet.JOURNAL OF ENVIRONMENTAL SCIENCES,22(11).
MLA	Ming, Jing,et al."Carbonaceous particles in the atmosphere and precipitation of the Nam Co region, central Tibet".JOURNAL OF ENVIRONMENTAL SCIENCES 22.11(2010).