Hydrochemistry and water quality of Rewalsar Lake of Lesser Himalaya, Himachal Pradesh, India
Autor: | Narendra K. Meena, Pawan Kumar Gaury, A. K. Mahajan |
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Rok vydání: | 2017 |
Předmět: |
Salinity
010504 meteorology & atmospheric sciences Dolomite Carbonates India Weathering 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences Calcium Carbonate chemistry.chemical_compound Rivers Silicate minerals Water Quality Sodium adsorption ratio Magnesium Water Pollutants Weather 0105 earth and related environmental sciences General Environmental Science Chemistry Sodium General Medicine Pollution Lakes Environmental chemistry Piper diagram Carbonate Water quality Seasons Calcareous Environmental Monitoring |
Zdroj: | Environmental monitoring and assessment. 190(2) |
ISSN: | 1573-2959 |
Popis: | The present research is to study hydrochemistry and water quality of Rewalsar Lake during pre-monsoon, monsoon, and post-monsoon seasons. The Ca2+ and Na+ are observed as the dominant cations from pre- to post-monsoon season. On the other hand, HCO3− and Cl− are observed dominant anions during pre-monsoon and monsoon seasons, whereas HCO3− and SO42− during post-monsoon season. The comparison of alkaline earth metals with alkali metals and total cations (Tz+) has specified that the carbonate weathering is the dominant source of major ions in the water of lake. The HCO3− is noticed to be mainly originated from carbonate/calcareous minerals during monsoon and post-monsoon, but through silicate minerals during pre-monsoon. The SO42− in Rewalsar Lake is produced by the dissolution of calcite and dolomite etc. The alkali metals and Cl− in the lake can be attributed to the silicate weathering as well as halite dissolution and anthropogenic activities. Certain other parameters like NO3−, NH4+, F−, and Br− are mainly a result of anthropogenic activities. The alkaline earth metals are found to surpass over alkali metals, whereas weak acid (HCO3−) exceed to strong acid (SO42−). The Piper diagram has shown Ca2+–HCO3− type of water during all the seasons. The water quality index has indicated that the water quality of the lake is unsuitable for drinking from pre- to post-monsoon. Several parameters like salinity index, sodium adsorption ratio, sodium percent, residual sodium carbonate, magnesium hazard etc. have revealed the water of Rewalsar Lake as suitable for irrigation. |
Databáze: | OpenAIRE |
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