摘要：The present investigation has been designed to assess the water quality parametersof surface waters present in and around Cuddalore district, Tamil Nadu for a period ofone year. Water samples were collected from five stations (S1-Chidambaram, S2-Veeranam, S3-Vadalur, S4-Vellar and S5-Sipcot) on 15 th day of each month. Theparameters analysed include pH, EC, TDS, total hardness, alkalinity, chloride, calcium,magnesium, sodium, sulphate and fluorides. The water samples collected from industrialarea showed a high value in all the parameters in summer season. This indicate theextent of pollution due to addition of effluents into the water bodies. But in rainy seasonall the parameters in all the stations remain under permissible limit. This may be due tothe dilution of surface waters with rain water.
