Water Quality Determinants of Mathabhanga, Churni and Jalangi Rivers

Industrial manufacturers like sugar mills and distillery plants, and milk units drain waste effluents into the waters of Mathabhanga, Churni and Jalangi rivers of Nadia district in West Bengal. Apart from industrial effluent discharge, Mathabhanga, Churni and Jalangi rivers receive domestic sewage on a regular basis through drainage systems from Majdia town, Ranaghat and Krishnanagar municipalities respectively. The wastewater effluent and domestic sewage affect the aquatic environment resulting in drastic changes in the river water quality of Mathabhanga, Churni and Jalangi rivers which are deleterious to both aquatic flora and fauna and this is how most of the river stretches of Mathabhanga, Churni and Jalangi got polluted. For the determination of the magnitude of pollution, the water quality index of river water is computed. The obtained result reveals that the present condition of surface water of Mathabhanga and Churni is in worse condition where the situation of Jalangi River at its downstream is comparatively better.