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DOI	10.1016/j.atmosenv.2009.06.023
	Concentrations, seasonal variations, and transport of carbonaceous aerosols at a remote Mountainous region in western China
	Cao, Jun-Ji; Xu, Bai-Qing; He, Jian-Qiao; Liu, Xian-Qin; Han, Yong-Ming; Wang, Ge-hui; Zhu, Chong-shu
通讯作者	Cao, JJ (通讯作者)
发表日期	2009
ISSN	1352-2310
EISSN	1873-2844
起始页码	4444
结束页码	4452
卷号	43 期号:29
英文摘要	Carbonaceous aerosol concentrations were determined for total suspended particle samples collected from Muztagh Ata Mountain in western China from December 2003 to February 2006. Elemental carbon (EC) varied from 0.004 to 0.174 mu g m(-3) (average = 0.055 mu g m(-3)) while organic carbon (OC) ranged from 0.12 to 2.17 mu g m(-3) and carbonate carbon (CC) from below detection to 3.57 mu g m(-3). Overall, EC was the least abundant fraction of carbonaceous species, and the EC concentrations approached those in some remote polar areas, possibly representing a regional background. Low EC and OC concentrations occurred in winter and spring while high CC in spring and summer was presumably due to dust from the Taklimakan desert, China. OC/EC ratios averaged 10.0, and strong correlations between OC and EC in spring-winter suggest their cycles are coupled, but lower correlations in summer-autumn suggest influences from biogenic OC emissions and secondary OC formation. Trajectory analyses indicate that air transported from outside of China brings similar to 0.05 mu g m(-3) EC, similar to 0.42 mu g m(-3) OC, and similar to 0.10 mu g m(-3) CC to the site, with higher levels coming from inside China. The observed EC was within the range of loadings estimated from a glacial ice core, and implications of EC-induced warming for regional climate and glacial ice dynamics are discussed. (C) 2009 Elsevier Ltd. All rights reserved.
关键词	ELEMENTAL CARBON BLACK CARBON NORTHERN CHINA DUST TEMPERATURE MUZTAGATA CLIMATE PM(2.5)STATION RECORD
英文关键词	Elemental carbon; Organic carbon; Carbonate carbon; Aerosol; Ice core; Remote atmosphere
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000269421200008
来源期刊	ATMOSPHERIC ENVIRONMENT
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/257648
推荐引用方式 GB/T 7714	Cao, Jun-Ji,Xu, Bai-Qing,He, Jian-Qiao,et al. Concentrations, seasonal variations, and transport of carbonaceous aerosols at a remote Mountainous region in western China[J]. 中国科学院青藏高原研究所,2009,43(29).
APA	Cao, Jun-Ji.,Xu, Bai-Qing.,He, Jian-Qiao.,Liu, Xian-Qin.,Han, Yong-Ming.,...&Zhu, Chong-shu.(2009).Concentrations, seasonal variations, and transport of carbonaceous aerosols at a remote Mountainous region in western China.ATMOSPHERIC ENVIRONMENT,43(29).
MLA	Cao, Jun-Ji,et al."Concentrations, seasonal variations, and transport of carbonaceous aerosols at a remote Mountainous region in western China".ATMOSPHERIC ENVIRONMENT 43.29(2009).