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学科主题: 地理学::自然地理学
题名: Potentially Toxic Trace Metals in Water and Lake-Bed Sediment of Panchpokhari, an Alpine Lake Series in the Central Himalayan Region of Nepal
作者: Raut, R (Raut, Rosha)1; Bajracharya, RM (Bajracharya, Roshan Man)1; Sharma, S (Sharma, Subodh)1; Sharma, CM (Sharma, Chhatra Mani)1, 2; Kang, SC (Kang, Shichang)3, 4; Zhang, QG (Zhang, Qianggong)4, 5; Tripathee, L (Tripathee, Lekhendra)2, 3; Chen, PF (Chen, Pengfei)3; Rupakheti, D (Rupakheti, Dipesh)5; Guo, JM (Guo, Junming)5; Dongol, BS (Dongol, Bhawani S.)6
通讯作者: Raut, R
关键词: TIBETAN PLATEAU ; HEAVY-METALS ; ATMOSPHERIC DEPOSITION ; REFERENCE ELEMENT ; HEADWATER LAKES ; ICE CORE ; CONTAMINATION ; ENRICHMENT ; MERCURY ; SOILS
刊名: WATER AIR AND SOIL POLLUTION
发表日期: 2017
DOI: 10.1007/s11270-017-3467-5
卷: 228, 期:8, 页:303
收录类别: SCI
合作性质: 国际
文章类型: Article
类目[WOS]: Environmental Sciences; Meteorology & Atmospheric Sciences; Water Resources
研究领域[WOS]: Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences; Water Resources
英文摘要: This study assessed the level of potentially toxic trace metals (PTMs), seasonal variations, and their possible sources from the surface water and lake-bed sediment of Panchpokhari lake series, an alpine and glacial lake at 4160 m a.s.l. in Central Nepal. The lake series have five lakes, with Lake-1 larger than others. So, Lake-1 was investigated thoroughly during pre-monsoon and post-monsoon seasons. Sediment core was collected from the deepest basin of the Lake-1 during pre-monsoon. Most of the PTM concentrations were higher in the pre-monsoon season; however, Sc, Cr, Cu, Zn, As, and Ag were higher in the post-monsoon. This is an indication that the lake has been impacted either by natural or long-range transported atmospheric pollutants. Ti, Sb, and Ag had extremely high enrichment factor (EF) in waters, whereas Cd, Zn, and As had high EF in sediments indicating that these metals originated from anthropogenic sources. Furthermore, PTM concentrations in the sediment were in the increasing order of Hg
语种: 英语
WOS记录号: WOS:000406310400037
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/8015
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Kathmandu Univ, Sch Sci, Dept Environm Sci & Engn, Aquat Ecol Ctr, Kathmandu, Nepal.
2.Himalayan Environm Res Inst, Kathmandu, Nepal.
3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Gansu, Peoples R China.
4.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China.
5.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China.
6.World Wildlife Fund, Kathmandu, Nepal.

Recommended Citation:
Raut, R ,Bajracharya, RM ,Sharma, S ,et al. Potentially Toxic Trace Metals in Water and Lake-Bed Sediment of Panchpokhari, an Alpine Lake Series in the Central Himalayan Region of Nepal[J]. WATER AIR AND SOIL POLLUTION,2017,228(8):303.
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