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Hydro-geochemical characteristics of glacial meltwater from Naradu Glacier catchment, Western Himalaya
Department of Environmental Science, Sharda University, Greater Noida, India. Department of Environmental Science, School of Earth Science, Central University of Rajsthan, Ajmer, India.
Department of Environmental Science, School of Earth Science, Central University of Rajsthan, Ajmer, India.
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Space Technology.
Department of Environmental Science, Sharda University, Greater Noida, India.
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2019 (English)In: Environmental Earth Sciences, ISSN 1866-6280, E-ISSN 1866-6299, Vol. 78, no 24, article id 683Article in journal (Refereed) Published
Abstract [en]

The pattern of changing hydro-geochemical characteristics of water in Himalayan rivers is primarily controlled by sediment load from natural sources in higher altitudes and anthropogenic sources such as the burning of fossil fuels for domestic use, vehicular emissions, and wind transported industrial pollutants in the downstream region. The assessment of water quality is critical for the comparison of natural and anthropogenic sources in the downstream areas due to the dependence of the population on the glacial meltwater for freshwater supply. In the present study, we investigate the physical and ionic characteristics of glacial meltwater from Naradu Glacier catchment concerning the dominant weathering process. The freshwater samples were collected during the ablation period of 2016 and 2017 from specified locations. The physical parameters (pH, electrical conductivity, and temperature) were measured in the field while the analyses for concentrations of major cations (Ca2+, Mg2+, K+, Na+) and major anions (Cl−, SO42−, HCO3−, NO3−) were done in the laboratory. The anions (HCO3− > SO42− > Cl− > NO3−) and cations (Ca2+ > Mg2+ > Na+ > K+) concentrations were observed to have similar trends for both of the ablation period. The statistical analysis shows the predominance of geological weathering processes in the catchment as the controlling factor for the variation in concentration of different ionic species. The catchment was found to be rich in rocks with carbonate mineral making the Ca2+ and HCO3− the most dominant ions in the glacial meltwater.

Place, publisher, year, edition, pages
Springer, 2019. Vol. 78, no 24, article id 683
Keywords [en]
Hydro-geochemistry, Cations, Anions, Carbonate weathering, Naradu, Glacier
National Category
Environmental Sciences Aerospace Engineering
Research subject
Atmospheric science
Identifiers
URN: urn:nbn:se:ltu:diva-76875DOI: 10.1007/s12665-019-8687-0Scopus ID: 2-s2.0-85075987092OAI: oai:DiVA.org:ltu-76875DiVA, id: diva2:1373403
Note

Validerad;2019;Nivå 2;2019-12-03 (johcin)

Available from: 2019-11-27 Created: 2019-11-27 Last updated: 2019-12-16Bibliographically approved

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Singh, ShaktimanBhardwaj, Anshuman

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