Document Type : Primary Research paper
Department of Zoology, Women’s Christian College, Nagercoil. Tamil Nadu - 629 003.
Department of Animal Science, Manonmaniam Sundaranar University, Tirunelveli. Tamil Nadu-627012
Dams are the main source for water storage which can be used for water table maintenance, survival of human beings during drought conditions, irrigations, industrial purpose etc. Discharge of harmful chemicals, domestic wastes, sewage disposal, plastic wastes leads to exceed the limits of water quality. Physical and chemical analysis of the water can have a clear idea about the quality of water in the stored dams. Our study focused on Pechiparai, Perunchani, Chittar- I and Chittar-II dams at three different season namely Pre Monsoon, Monsoon and post Monsoon showed variations in their mineral concentrations. The analyzed results revealed the minerals such as calcium, magnesium, sodium, potassium, iron, manganese, ammonia, nitrite, nitrate, chloride, fluoride, sulphate and phosphate are within their permissible limits. The physical parameters such as pH, alkalinity, hardness, turbidity, TDS and conductivity of dams at three different months showed better results. From the observed data’s the water from the dams are good and pollution free environment, thus it has no harmful effects against aquatic animals for their survival. Thus Pechiparai, Perunchani and Chittar dams are non-polluted but their physical and chemical parameters are slightly varied between the three Seasons.