Major ions and trace elements of two selected rivers near Everest region, southern Himalayas, Nepal
文献类型：期刊论文
| 作者 | Kang, SC; Kang, S (Kang, Shichang)4,5; Paudyal, R (Paudyal, Rukumesh)1,5,6,7; Sharma, CM (Sharma, Chhatra Mani)1,3,7; Tripathee, L (Tripathee, Lekhendra)2,7; Huang, J (Huang, Jie)2; Rupakheti, D (Rupakheti, Dipesh)2,6; Sillanpaa, M (Sillanpaeae, Mika)1 |
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2016 |
| 卷号 | 75期号:1页码:46 |
| 关键词 | Tibetan Plateau Chemical-composition Weathering Processes Co2 Consumption Water Chemistry System Precipitation Transport Glaciers Erosion |
| DOI | 10.1007/s12665-015-4811-y |
| 文献子类 | Article |
| 英文摘要 | During pre-monsoon of 2013, water samples were collected from 30 sites of two major rivers, viz. Dudh Koshi and Indrawati to assess the river water quality on the southern side of the Nepalese Himalayas. The physical parameters such as pH, EC, turbidity and water temperature were measured in the field and major ions (Na+, NH4+, K+, Ca-2(+), Mg-2(+), Cl-, SO42-, and NO3-) and element concentrations (Li, Sc, V, Cr, Mn, Co, Ni, Cu, Zn, Ga, As, Rb, Sr, Cs, Ba, Pb, U, Y, Zr, Nb and Cd) in the water samples were analyzed in the laboratory. The result indicated river waters were neutral to mostly alkaline with pH ranging from 6.57 to 8.81 and EC ranging from 10.5 to 321 mu S/cm. The lower values of turbidity were recorded in the pristine tributaries of Dudh Koshi, whereas the main rivers had the higher values with a range of 0.51-515 NTU. Bicarbonate (HCO3-) showed a significant correlation with Ca2+ and Mg2+, suggesting carbonate weathering as the dominant geochemical process in the region. Furthermore, the Gibbs plot also suggested the dominance of rock weathering. Very low concentration of trace elements was found in most of the samples which were within the WHO guidelines. In addition, the concentrations of toxic elements such as As and Pb were below the detectable limits in most of the samples. Furthermore, the analysis of PCA suggests that most of the elements originated from natural weathering; however, there were some evidences of anthropogenic effect on water quality which may not be critical issue at present but can be of concern in future. |
| 学科主题 | 自然地理学 |
| 语种 | 英语 |
| WOS记录号 | WOS:000370239800046 |
| 源URL | [http://ir.itpcas.ac.cn/handle/131C11/7878]  |
| 专题 | 青藏高原研究所_图书馆 |
| 通讯作者 | Kang, SC |
| 作者单位 | 1.Lappeenranta Univ Technol, Lab Green Chem, Sammonkatu 12, Mikkeli 50130, Finland 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China 3.Kathmandu Univ, Sch Sci, Dept Environm Sci & Engn, Kavre, Nepal 4.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 5.Chinese Acad Sci, CAREERI, State Key Lab Cryospher Sci, Donggang West Rd 320, Lanzhou 730000, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 7.HERI, Kathmandu, Nepal |
| 推荐引用方式 GB/T 7714 | Kang, SC,Kang, S ,Paudyal, R ,et al. Major ions and trace elements of two selected rivers near Everest region, southern Himalayas, Nepal[J]. ENVIRONMENTAL EARTH SCIENCES,2016,75(1):46. |
| APA | Kang, SC.,Kang, S .,Paudyal, R .,Sharma, CM .,Tripathee, L .,...&Sillanpaa, M .(2016).Major ions and trace elements of two selected rivers near Everest region, southern Himalayas, Nepal.ENVIRONMENTAL EARTH SCIENCES,75(1),46. |
| MLA | Kang, SC,et al."Major ions and trace elements of two selected rivers near Everest region, southern Himalayas, Nepal".ENVIRONMENTAL EARTH SCIENCES 75.1(2016):46. |
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来源：青藏高原研究所
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