Impact of pollutants on the aquatic fauna discharging by Calcutta leather complex in W.B, India

Abstract

The present study was framed to investigate the effect of industrial wastes produced by Calcutta Leather Complex (CLC) on adjacent aquatic faunal diversity that also directly or indirectly interfere human well-being. This study was conducted for one year from July 2018 to June 2019 twice in a month. Qualitative survey was done basically by interview method throughout the study area specially those people who are directly or indirectly depends on the canal water. According to local fisherman and villagers it was informed that the adequacy of economically important aquatic species was plenty decades ago, but now a days decrease in number or almost absence of these commercially valuable species indicates the effect of pollutant components drained out of CLC. CLC discharges industrial effluents wastes like Cr, Mn, Fe, Cu, Zn and Pb, which are the major consequences of water pollution throughout the canal water of study area. The present communication indicates the disruption of faunal diversity especially aquatic faunal diversity day by day. This present study suggested that CLC should adopt some advance effective technology to purify discharged polluted water and also examine the water quality on regular basis before discharge into canal to avoid adverse environmental condition that also helps to improve human well-being.