Studies on Pollution of River Nethravathi, Karnataka

The studies carried out on the River Nethravathi show that the river is grossly polluted at various stretches especially where pilgrim activity is concentrated. The major sources of the pollution are entry of sewage and direct human activity in the form of bathing, cloth washing, washing of vehicles, throwing of religious and other objects. Turbidity of the river at certain stations has been found quite low due to algal growth and presence of silt.