气候变化领域集成服务门户(CCPortal): Concentration, spatiotemporal distribution, and sources of mercury in Mt. Yulong, a remote site in southeastern Tibetan Plateau

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DOI	10.1007/s11356-019-05005-4
	Concentration, spatiotemporal distribution, and sources of mercury in Mt. Yulong, a remote site in southeastern Tibetan Plateau
	Paudyal, Rukumesh; Kang, Shichang; Tripathee, Lekhendra; Guo, Junming; Sharma, Chhatra Mani; Huang, Jie; Niu, Hewen; Sun, Shiwei; Pu, Tao
通讯作者	Kang, SC (通讯作者)
发表日期	2019
ISSN	0944-1344
EISSN	1614-7499
起始页码	16457
结束页码	16469
卷号	26 期号:16
英文摘要	The unique geographic location of Mt. Yulong in the Tibetan Plateau (TP) makes it a favorable site for mercury (Hg) study. Various snow samples, such as surface snow, snow pit, and snowmelt water were collected from Mt. Yulong in the southeastern TP. The average concentration of Hg was found to be 37 +/- 26ngL(-1) (mean +/- SD), comparable to Hg concentration from other parts of TP in the same year, though it was comparatively higher than those from previous years, suggesting a possible increase of Hg concentration over the TP. The concentration of Hg was higher in the lower elevation of the glaciers possibly due to the surface melting concentration of particulates. Higher concentration of Hg was observed in the fresh snow, suggesting the possibility of long-range transportation. The average concentration of Hg from the snow pit was 1.49 +/- 0.78ngL(-1), and the concentration of Hg in the vertical profile of the snow pit co-varied with calcium ion (Ca2+) supporting the fact that the portion of Hg is from the crustal origin. In addition, the principal component analysis (PCA) confirmed that the source of Hg is from the crustal origin; however, the presence of anthropogenic source in the Mt. Yulong was also observed. In surface water around Mt. Yulong, the concentration of Hg-T was found in the order of Lashihai Lake > Reservoirs > Rivers > Swamps > Luguhu Lake. In lake water, the concentration of Hg-T showed an increasing trend with depth. Overall, the increased concentration of Hg in recent years from the TP can be of concern and may have an adverse impact on the downstream ecosystem, wildlife, and human health.
关键词	LIGHT-ABSORBING IMPURITIES ICE CORE TEMPORAL DISTRIBUTION ELEMENTAL COMPOSITION SPATIAL-DISTRIBUTION SEASONAL-VARIATIONS WET PRECIPITATION CENTRAL HIMALAYAS GLACIER SNOW WATER
英文关键词	Mercury; Tibetan Plateau; Glacier; Snow; Mt; Yulong; Baishui Glacier No. 1
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000468977800060
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/259546
推荐引用方式 GB/T 7714	Paudyal, Rukumesh,Kang, Shichang,Tripathee, Lekhendra,et al. Concentration, spatiotemporal distribution, and sources of mercury in Mt. Yulong, a remote site in southeastern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2019,26(16).
APA	Paudyal, Rukumesh.,Kang, Shichang.,Tripathee, Lekhendra.,Guo, Junming.,Sharma, Chhatra Mani.,...&Pu, Tao.(2019).Concentration, spatiotemporal distribution, and sources of mercury in Mt. Yulong, a remote site in southeastern Tibetan Plateau.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,26(16).
MLA	Paudyal, Rukumesh,et al."Concentration, spatiotemporal distribution, and sources of mercury in Mt. Yulong, a remote site in southeastern Tibetan Plateau".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 26.16(2019).