Mercury distribution and variation on a high-elevation mountain glacier on the northern boundary of the Tibetan Plateau (SCI)
文献类型：期刊论文
| 作者 | Huang J. ; Kang S. C. ; Guo J. M. ; Sillanpaa M. ; Zhang Q. G. ; Qin X. ; Du W. T. ; Tripathee L. |
| 刊名 | Atmospheric Environment
 |
| 出版日期 | 2014 |
| 卷号 | 96期号:27-36 |
| 英文摘要 | In July 2013, snow/ice and streamwater samples were retrieved from a high-elevation mountain glacier (Laohugou Glacier No. 12) on the northern boundary of the Tibetan Plateau and were analysed for total Hg (Hg-T). Concentration levels of Hg-T in snow samples were higher than those from the central and southern part of the Tibetan Plateau. Most of the Hg in the snow/ice was found to be associated with particulate matter. A small daily variation of Hg-T in surface snow further suggested that snow Hg on the Tibetan Plateau was less influenced by the effect of post-depositional processes such as photoreduction. The variations in Hg-T peak concentration on the vertical profiles of the snowpits indicated that settling of particulate matter and percolation of snowmelt had caused an increase in Hg concentrations with increasing depth. No positive relationship was found between Hg-T and elevation in our study region, indicating that the "altitude effect" on Hg in surface snow may only exist on extremely high-elevation glaciers. Moreover, Hg-T concentrations in the surface ice were found to be the highest observed in this glacier. With ongoing climate warming, this is of particular concern in western China as the accumulated Hg released by accelerated glacier thinning and retreat may endanger ecosystems and human health in the glacier-fed downstream regions. (C) 2014 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 公开日期 | 2015-12-24 |
| 源URL | [http://ir.casnw.net/handle/362004/24958]  |
| 专题 | 寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文 |
| 推荐引用方式 GB/T 7714 | Huang J.,Kang S. C.,Guo J. M.,et al. Mercury distribution and variation on a high-elevation mountain glacier on the northern boundary of the Tibetan Plateau (SCI)[J]. Atmospheric Environment,2014,96(27-36). |
| APA | Huang J..,Kang S. C..,Guo J. M..,Sillanpaa M..,Zhang Q. G..,...&Tripathee L..(2014).Mercury distribution and variation on a high-elevation mountain glacier on the northern boundary of the Tibetan Plateau (SCI).Atmospheric Environment,96(27-36). |
| MLA | Huang J.,et al."Mercury distribution and variation on a high-elevation mountain glacier on the northern boundary of the Tibetan Plateau (SCI)".Atmospheric Environment 96.27-36(2014). |
入库方式： OAI收割
来源：寒区旱区环境与工程研究所
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