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

CCPortal

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 R.; Kang S.; Tripathee L.; Guo J.; Sharma C.M.; Huang J.; Niu H.; Sun S.; Pu T.
发表日期	2019
ISSN	09441344
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 ± 26 ng L−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 ± 0.78 ng L−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 HgT was found in the order of Lashihai Lake > Reservoirs > Rivers > Swamps > Luguhu Lake. In lake water, the concentration of HgT 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. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Baishui Glacier No. 1;Glacier;Mercury;Mt. Yulong;Snow;Tibetan Plateau
语种	英语
来源期刊	Environmental Science and Pollution Research
来源机构	中国科学院西北资源环境生态研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/89573
作者单位	(1)State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Donggang West Rd. 320, Lanzhou, 730000, China;(2)University of Chinese Academy of Sciences, Beijing, 100049, China;(3)Himalayan Environment Research Institute (HERI), Kathmandu, Nepal;(4)CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing, 100085, China;(5)Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China;(6)Central Department of Environmental Science, Tribhuvan University, Kathmandu, Nepal;(7)Yulong Snow Mountain Glacier and Environmental Observation Research Station, State Key Laboratory of Cryospheric Science, Lanzhou, 730000, China
推荐引用方式 GB/T 7714	Paudyal R.,Kang S.,Tripathee L.,et al. Concentration, spatiotemporal distribution, and sources of mercury in Mt. Yulong, a remote site in southeastern Tibetan Plateau[J]. 中国科学院西北资源环境生态研究院,2019,26(16).
APA	Paudyal R..,Kang S..,Tripathee L..,Guo J..,Sharma C.M..,...&Pu T..(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 R.,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).