Water quality assessment of lower Ganga river near Haldia applying water quality index method

This present study is aim to assess the water quality index for the lower Ganga river during dry season at Haldia through GIS modelling. This study also focused to develop a mapping to estimate values of water quality parameters graphically in locations where the parameters are not measured in the field using Arc-GIS and to classify the water quality of the lower Ganga river at various sampling points by applying Weighted arithmetic water quality index (WAWQI) method for better idea about water quality of the river. The analysis reveals that the surface water of the study area needs some remediation measurement to main water quality in river.