Hydro-geochemical characteristics of glacial meltwater from Naradu Glacier catchment, Western Himalaya

Document identifier: oai:DiVA.org:ltu-76875
Access full text here:10.1007/s12665-019-8687-0
Keyword: Natural Sciences, Rymd- och flygteknik, Atmospheric science, Glacier, Naradu, Carbonate weathering, Anions, Cations, Hydro-geochemistry, Maskinteknik, Earth and Related Environmental Sciences, Teknik och teknologier, Aerospace Engineering, Mechanical Engineering, Engineering and Technology, Miljövetenskap, Geovetenskap och miljövetenskap, Naturvetenskap, Environmental Sciences, Atmosfärsvetenskap
Publication year: 2019
Relevant Sustainable Development Goals (SDGs):
SDG 6 Clean water and sanitationSDG 9 Industry, innovation and infrastructureSDG 14 Life below water
The SDG label(s) above have been assigned by OSDG.ai

Abstract:

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.

Authors

Rajesh Kumar

Department of Environmental Science, Sharda University, Greater Noida, India. Department of Environmental Science, School of Earth Science, Central University of Rajsthan, Ajmer, India
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Ramesh Kumar

Department of Environmental Science, School of Earth Science, Central University of Rajsthan, Ajmer, India
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Shaktiman Singh

Luleå tekniska universitet; Rymdteknik
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Atar Singh

Department of Environmental Science, Sharda University, Greater Noida, India
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Anshuman Bhardwaj

Luleå tekniska universitet; Rymdteknik
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Himanshu Chaudhary

Department of Environmental Science, Sharda University, Greater Noida, India
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