The Study of Organophosphate pesticide has recently become a subject of biological interest because of their hazardous potential, low concentrations with growing industrialisation metals & pesticides to water is increasing day by day. Chemical pollutants mostly arise from industrial processes. The pesticide are introduced into the aquatic system, rocks,volcanic eruptions and a number of human activities such as mining processing. There is evidence that the level of pesticides in fresh water, lakes, and rivers has been rising in recent years. Pesticides poisoning products a crippling and after fatal diseases. Pesticides causes a major problem in aquatic environment..