1Rita S. Tekade and 2Pravin M. Telkhade

1IHLR & SS, Department of Zoology, Sardar Patel Mahavidyalaya, Chandrapur - 442401 Email: ritatekade723@gmail.com , Phone Number: 9561332236 Correspondent author Rita S. Tekade Email: pravintelkhade201@gmail.com 2P.G Department of Zoology, Dr. Khatri Mahavidyalaya, Chandrapur - 442401 Phone Number: 9923271968

ABSTRACT

Water reserviors are naturally or artificially formed by depressions filled with water and are used for irrigation, fishery and recreation. The study deals with the seasonal variation of physicochemical characteristics of Tamasi Lake, that is free from human activities and is surrounded by a dense forest. The lake water is suitable for only wildlife drinking. Water quality determination was conducted for 12 months in the Tamasi lake between June 2022 and May 2023. The purpose of study is to assess the water quality in terms of several parameters, the Temp., pH, Conductivity, Transparency, Hardness, Ca- hardness, Mg- hardness, Total suspended solids, Total Solids, Total Dissolved Solids, Dissolved Oxygen, Carbon dioxide, Chemical Oxygen Demand, Biological Oxygen Demand, Phosphate, Sulphate and Nitrate. The present study summarizes that Tamasi lake water is pollution free and all the physico-chemical parameters were within the permissible limit.

Key words : Biological Oxygen Demand, Chemical Oxygen Demand, Physico- Chemical Parameters , Tamasi lake, Tamasi village

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