气候变化领域集成服务门户(CCPortal): New insights into trace elements deposition in the snow packs at remote alpine glaciers in the northern Tibetan Plateau, China

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DOI	10.1016/j.scitotenv.2015.05.065
	New insights into trace elements deposition in the snow packs at remote alpine glaciers in the northern Tibetan Plateau, China
	Dong, Zhiwen; Kang, Shichang; Qin, Xiang; Li, Xiaofei; Qin, Dahe; Ren, Jiawen
发表日期	2015
ISSN	0048-9697
EISSN	1879-1026
卷号	529
英文摘要	Trace element pollution resulting from anthropogenic emissions is evident throughout most of the atmosphere and has the potential to create environmental and health risks. In this study we investigated trace element deposition in the snowpacks at two different locations in the northern Tibetan Plateau, including the Laohugou (LHG) and the Tanggula (TGL) glacier basins, and its related atmospheric pollution information in these glacier areas, mainly focusing on 18 trace elements (Li, Be, V, Cr, Co, Ni, Cu, Zn, Ga, Rb, Nb, Mo, Cd, Sb, Cs, Ba, Tl, and Pb). The results clearly demonstrate that pronounced increases of both concentrations and crustal enrichment factors (EFs) are observed in the snowpack at the TGL glacier basin compared to that of the LHG glacier basin, with the highest EFs for Sb and Zn in the TGL basin, whereas with the highest EFs for Sb and Cd in the LHG basin. Compared with other studies in the Tibetan Plateau and surrounding regions, trace element concentration showed gradually decreasing trend from Himalayan regions (southern Tibetan Plateau) to the TGL basin (central Tibetan Plateau), and to the LHG basin (northern Tibetan Plateau), which probably implied the significant influence of atmospheric trace element transport from south Asia to the central Tibetan Plateau. Moreover, EF calculations at two sites showed that most of the heavy metals (e.g., Cu, Zn, Mo, Cd, Sb, and Pb) were from anthropogenic sources and some other elements (e.g., Li, Rb, and Ba) were mainly originated from crustal sources. MODIS atmospheric optical depth (AOD) fields derived using the Deep Blue algorithm and CALIOP/CALIPSO transect showed significant influence of atmospheric pollutant transport from south Asia to the Tibetan Plateau, which probably caused the increased concentrations and EFs of trace element deposition in the snowpack on the TGL glacier basin. (C) 2015 Elsevier B.V. All rights reserved.
关键词	Trace element Concentration Source Glacier snowpack Northern Tibetan Plateau
学科领域	Environmental Sciences & Ecology
语种	英语
WOS研究方向	Environmental Sciences
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
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/111761
作者单位	Chinese Acad Sci, State Key Lab Cryospher Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Dong, Zhiwen,Kang, Shichang,Qin, Xiang,et al. New insights into trace elements deposition in the snow packs at remote alpine glaciers in the northern Tibetan Plateau, China[J]. 中国科学院西北生态环境资源研究院,2015,529.
APA	Dong, Zhiwen,Kang, Shichang,Qin, Xiang,Li, Xiaofei,Qin, Dahe,&Ren, Jiawen.(2015).New insights into trace elements deposition in the snow packs at remote alpine glaciers in the northern Tibetan Plateau, China.SCIENCE OF THE TOTAL ENVIRONMENT,529.
MLA	Dong, Zhiwen,et al."New insights into trace elements deposition in the snow packs at remote alpine glaciers in the northern Tibetan Plateau, China".SCIENCE OF THE TOTAL ENVIRONMENT 529(2015).