Assessment of physicochemical quality and heavy metals status in some selected drains discharge into the lower stretch of the hooghly river

Anthropogenic activities increases the pollution level in the lower part of the Hooghly river. Several reports and research papers indicate towards the bioaccumulation of heavy metals. The present research aims to assess the concentration of the key pollutants released from adjacent drains into the Hooghly River and their presence in river water. To reach the goal, wastewater samples collected from some selected drains and river water collected from the adjacent bathing station to these drains. Collected samples are acid digested and took the results Most of the drains wastewaterwere found contaminated with different contaminants like Fe, Pb, Cd, Ni, Zn, Cu, Cr, but the river water found under control. According to the status of Relative Accumulation Indices (RAI), calculating by the ratio concentration of metals in river water to drains water, Fe