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Distribution and transportation of mercury from glacier to lake in the Qiangyong Glacier Basin, southern Tibetan Plateau, China
Sun, SW (Sun, Shiwei)1,5; Kang, SC (Kang, Shichang)1,3; Huang, J (Huang, Jie)2,3,4; Li, CD (Li, Chengding)2; Guo, JM (Guo, Junming)2,4; Zhang, QG (Zhang, Qianggong)2,3; Sun, XJ (Sun, Xuejun)2,5; Tripathee, L (Tripathee, Lekhendra)2,6; Kang, SC
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCES
2016
Volume44Issue:0Pages:213-223
DOI10.1016/j.jes.2015.09.017
AbstractThe Tibetan Plateau is home to the largest aggregate of glaciers outside the Polar Regions and is a source of fresh water to 1.4 billion people. Yet little is known about the transportation and cycling of Hg in high-elevation glacier basins on Tibetan Plateau. In this study, surface snow, glacier melting stream water and lake water samples were collected from the Qiangyong Glacier Basin. The spatiotemporal distribution and transportation of Hg from glacier to lake were investigated. Significant diurnal variations of dissolved Hg (DHg) concentrations were observed in the river water, with low concentrations in the morning (8: 00 am-14: 00 pm) and high concentrations in the afternoon (16: 00 pm-20: 00 pm). The DHg concentrations were exponentially correlated with runoff, which indicated that runoff was the dominant factor affecting DHg concentrations in the river water. Moreover, significant decreases of Hg were observed during transportation fromglacier to lake. DHg adsorption onto particulates followed by the sedimentation of particulate-bound Hg (PHg) could be possible as an important Hg removal mechanism during the transportation process. Significant decreases in Hg concentrations were observed downstream of Xiao Qiangyong Lake, which indicated that the high-elevation lake systemcould significantly affect the distribution and transportation of Hg in the Qiangyong Glacier Basin. (C) 2016 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
Subject Area自然地理学
WOS IDWOS:000378788100023
Language英语
Indexed BySCI
KeywordMethylmercury Exposure Spatial-distribution Southwestern China Florida Everglades Bay Tributaries Surface Waters Chesapeake Bay Speciation River Deposition
Cooperation Status国际
Department环境
SubtypeArticle
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/7685
Collection图书馆
Corresponding AuthorKang, SC
Affiliation1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
4.Lappeenranta Univ Technol, Lab Green Chem, Sammonkatu 12, FI-50130 Mikkeli, Finland
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.HERI, Bauddha 6, Kathmandu, Nepal
Recommended Citation
GB/T 7714
Sun, SW ,Kang, SC ,Huang, J ,et al. Distribution and transportation of mercury from glacier to lake in the Qiangyong Glacier Basin, southern Tibetan Plateau, China[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2016,44(0):213-223.
APA Sun, SW .,Kang, SC .,Huang, J .,Li, CD .,Guo, JM .,...&Kang, SC.(2016).Distribution and transportation of mercury from glacier to lake in the Qiangyong Glacier Basin, southern Tibetan Plateau, China.JOURNAL OF ENVIRONMENTAL SCIENCES,44(0),213-223.
MLA Sun, SW ,et al."Distribution and transportation of mercury from glacier to lake in the Qiangyong Glacier Basin, southern Tibetan Plateau, China".JOURNAL OF ENVIRONMENTAL SCIENCES 44.0(2016):213-223.
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