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DOI	10.1007/s11356-017-0165-1
	The online measured black carbon aerosol and source orientations in the Nam Co region, Tibet
	Zhang, Xin; Ming, Jing; Li, Zhongqin; Wang, Feiteng; Zhang, Guoshuai
通讯作者	Ming, J (通讯作者)
发表日期	2017
ISSN	0944-1344
EISSN	1614-7499
起始页码	25021
结束页码	25033
卷号	24 期号:32
英文摘要	Equivalent black carbon (eBC) mass concentrations were measured by an aethalometer (AE-31) in the Nam Co, central Tibet from 2010 to 2014. Different from previous filter-sampling studies (Ming et al., J Environ Sci 22(11):1748-1756, 2010; Zhao et al., Environ Sci Pollut Res 20:5827-5838, 2013), the first high-resolution online eBC measurement conducted in central Tibet is reported here, allowing to discuss the diurnal variations as well as seasonal variabilities of eBC. Average daily eBC concentration was 74 +/- 50 ng/m(3), reflecting a global background level. Meteorological conditions influenced eBC concentrations largely at seasonal scale, which are higher in February-May but lower in June-January. The highest eBC concentrations (greater than 210 ng/m(3)) were more associated with the W and WSW winds smaller than 6 m/s. The diurnal variations of eBC showed plateaus from 10:00 to 15:00 with seasonal variations, associated with local anthropogenic activities, such as indigenous Tibetan burning animal waste and tourism traffic. The PBLHs showed a co-variance with eBC concentrations, implicating close sources. The aerosol optical depths derived from the MODIS data over the Nam Co Observatory Station (NCOS)-included sub-area (30A degrees N-40A degrees N, 90A degrees E-100A degrees E) showed significant relationship with eBC concentrations. This suggests that nearby or short-distance sources other than long-distance transported pollutants could be important contributors to eBC concentrations at the NCOS, different from the conclusions suggested by previous studies.
关键词	OPTICAL-PROPERTIES LIGHT-ABSORPTION DUST SITE ATMOSPHERE STATION POLLUTION PLATEAU SYSTEM CHINA
英文关键词	Equivalent black carbon (eBC); Air pollution; Aerosol optical depth (AOD); NamCo; Tibet
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000414958700023
来源期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
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/258974
推荐引用方式 GB/T 7714	Zhang, Xin,Ming, Jing,Li, Zhongqin,et al. The online measured black carbon aerosol and source orientations in the Nam Co region, Tibet[J]. 中国科学院青藏高原研究所,2017,24(32).
APA	Zhang, Xin,Ming, Jing,Li, Zhongqin,Wang, Feiteng,&Zhang, Guoshuai.(2017).The online measured black carbon aerosol and source orientations in the Nam Co region, Tibet.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,24(32).
MLA	Zhang, Xin,et al."The online measured black carbon aerosol and source orientations in the Nam Co region, Tibet".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 24.32(2017).