ASSESSMENT OF SOME PHYSICO-CHEMICAL PROPERTIES FOR WATER IN GANGA RIVER AT VARANASI, INDIA

Abstract

ABSTRACT During the last few decades, anthropogenic activities have dramatically attired the quality of surface waters including those of rivers. The rising level of pollutants and changes in mid stream water quality of Ganga River have received serious attention of scientist and policy makers in India. The present investigation was attempted to study water quality of River Ganga and to record the qualitative change in water if any during the three consecutive months of sampling in 2013. A systematic study has been carried out to assess the water quality of River Ganga in Varanasi city. 36 water samples from four sampling stations i.e. By pass bridge upstream, Assi Ghat, Dashswamedh Ghat, and Raj Ghat bridge downstream, were collected and analyzed for physico-chemical parameters (Temp, pH, hardness, total dissolved solids, dissolved oxygen, B.O.D., and free CO2) .The analytical data of various physicochemical parameters indicates that some parameters like pH, hardness and total dissolved solids are found to be in excess than the prescribed limit in some water samples of the study areas as compared to World Health Organization standards (WHOS).