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The study deals with the seasonal limnological investigation related to physico-chemical characteristics of water of the Anasagar Lake in Ajmer (Rajasthan). The limnological parameters were tested following standard methods at three sampling sites/stations in the lake. The physico-chemical parameters (temperature, turbidity, pH, DO, BOD, COD, free CO2, total alkalinity, conductivity, TSS, TDS, Chloride, Ammonia, Nitrate, Phosphate, etc.) showed distinct temporal or seasonal variation in the lake. Higher nutrient content (nitrate, phosphate) was present in the lake. This finding also signifies eutrophication/higher trophic level. Water transparency, dissolved oxygen, BOD, total alkalinity, conductivity, CaCO3 hardness, TSS, nitrate and phosphate was correlated with various physico-chemical parameters in the lake. The physico-chemical characteristics of water of the lake revealed the poor water quality in Anasagar Lake.

Keywords

Physio-chemical parameters Limnology; Anasagar Lake; Eutrophication

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