Mercury in alpine fish from four rivers in the Tibetan Plateau
文献类型：期刊论文
| 作者 | Shao, Junjuan; Shi, Jianbo; Duo, Bu; Liu, Chengbin; Gao, Yan; Fu, Jianjie; Yang, Ruiqiang; Jiang, Guibin |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2016-01 |
| 卷号 | 39期号:0页码:22-28 |
| 关键词 | Mercury Methylmercury Fish The Tibetan Plateau Trophic level Risk assessment |
| 英文摘要 | As a global pollutant, high levels of mercury (Hg) have been found in remote ecosystem due to the long range atmospheric transport. In this study, a total of 60 fish samples were collected from four rivers across the Tibetan Plateau to study the accumulation of Hg in remote and high-altitude aquatic environment. The total Hg (THg) and methylmercury (MeHg) in fish muscles ranged from 11 to 2097 ng/g dry weight (dw) (average: 819 ng/g dw) and from 14 to 1960 ng/g dw (average: 756 ng/g dw), respectively. Significantly positive linear relationships were observed between the THg (r = 0.591, p < 0.01, n = 36) and MeHg concentrations (r = 0.473, p < 0.01, n = 36) with the trophic level of fish from Lhasa River, suggesting trophic transfer and biomagnification of Hg in this aquatic ecosystem. Moreover, the THg levels in fish had significantly positive correlations with the length (r = 0.316, p < 0.05, n = 60) and weight (r = 0.271, p < 0.05, n = 60) of fish. The high levels of Hg were attributed to the slow growth and long lifespan of the fish under this sterile and cold environment. Risk assessment revealed that the consumption of Oxygymnocypris stewartii, Schizothorax macropogon, Schizothorax waltoni, Schizopygopsis younghusbandi and Schizothorax o'connori would lead to a high exposure to MeHg. (C) 2015 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| 收录类别 | SCI |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/35891]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Shao, Junjuan,Shi, Jianbo,Duo, Bu,et al. Mercury in alpine fish from four rivers in the Tibetan Plateau[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2016,39(0):22-28. |
| APA | Shao, Junjuan.,Shi, Jianbo.,Duo, Bu.,Liu, Chengbin.,Gao, Yan.,...&Jiang, Guibin.(2016).Mercury in alpine fish from four rivers in the Tibetan Plateau.JOURNAL OF ENVIRONMENTAL SCIENCES,39(0),22-28. |
| MLA | Shao, Junjuan,et al."Mercury in alpine fish from four rivers in the Tibetan Plateau".JOURNAL OF ENVIRONMENTAL SCIENCES 39.0(2016):22-28. |
入库方式： OAI收割
来源：生态环境研究中心
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