气候变化领域集成服务门户(CCPortal): Atmospheric Aerosol Elements over the Inland Tibetan Plateau: Concentration, Seasonality, and Transport

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DOI	10.4209/aaqr.2015.05.0307
	Atmospheric Aerosol Elements over the Inland Tibetan Plateau: Concentration, Seasonality, and Transport
	Kang, Shichang; Chen, Pengfei; Li, Chaoliu; Liu, Bin; Cong, Zhiyuan
发表日期	2016
ISSN	1680-8584
EISSN	2071-1409
卷号	16 期号:3
英文摘要	Between November 2005 and November 2007, weekly total suspended particle samples were collected at the Nam Co station in the inland Tibetan Plateau (TP). Through inductively coupled plasma mass spectrometry, twenty-nine elements were analyzed and their sources and fluxes were investigated. Mean elemental concentrations were lower than those at the edge of the TP. Some elements, such as Cr, Ni, Cd, and Pb, exhibited high enrichment factors (Cr: 22; Ni: 17; Cd: 23; and Pb: 9), indicating possible anthropogenic influence in this remote region, particularly during the pre-monsoon and monsoon seasons. In addition, an empirical orthogonal function analysis revealed the dominance of crustal-origin elements, rather than anthropogenic elements, in the aerosol. Furthermore, backward air mass trajectories demonstrated that the Nam Co region was mainly influenced by air masses from Central and South Asia. Accordingly, because of dust storms from Central Asia and within the TP, crustal element concentrations, such as of Al, were higher during winter and pre-monsoon seasons than during the monsoon season. By contrast, anthropogenic elements, such as Cr and Cd, were relatively higher during the pre-monsoon and monsoon seasons because of pollutants transported from South Asia, where atmospheric brown clouds are concentrated and biomass combustion is prevalent. Dry deposition of aerosols dominated in the Nam Co region, particularly during the non-monsoon period, which is useful to interpret the elemental records in the TP ice cores and lake sediments.
关键词	Elements Aerosol Atmospheric transport Deposition flux Nam Co
学科领域	Environmental Sciences & Ecology
语种	英语
WOS研究方向	Environmental Sciences
来源期刊	AEROSOL AND AIR QUALITY 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/111854
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	Kang, Shichang,Chen, Pengfei,Li, Chaoliu,et al. Atmospheric Aerosol Elements over the Inland Tibetan Plateau: Concentration, Seasonality, and Transport[J]. 中国科学院西北生态环境资源研究院,2016,16(3).
APA	Kang, Shichang,Chen, Pengfei,Li, Chaoliu,Liu, Bin,&Cong, Zhiyuan.(2016).Atmospheric Aerosol Elements over the Inland Tibetan Plateau: Concentration, Seasonality, and Transport.AEROSOL AND AIR QUALITY RESEARCH,16(3).
MLA	Kang, Shichang,et al."Atmospheric Aerosol Elements over the Inland Tibetan Plateau: Concentration, Seasonality, and Transport".AEROSOL AND AIR QUALITY RESEARCH 16.3(2016).