TY - JOUR ID - 71779 TI - Lake Hydro Geochemistry: An Implication to Chemical Weathering, Ion-exchange Phenomena and Metal Interaction JO - Pollution JA - POLL LA - en SN - 2383-451X AU - Dutta, G. AU - Gupta, S. AU - Gupta, A. AD - Department of Environmental Science, The University of Burdwan, Burdwan, India AD - Department of Statistics, The University of Burdwan, Burdwan, India Y1 - 2019 PY - 2019 VL - 5 IS - 4 SP - 803 EP - 819 KW - Hydro geochemistry KW - Heavy metal assessment KW - Water-rock interaction KW - risk assessment KW - Saheb Bandh Lake DO - 10.22059/poll.2019.280504.620 N2 - Present study aims to unravel the hydro geochemical interaction of sediment and water of Saheb bandh lake, West Bengal, India with an emphasis on heavy metal assessment. Lake water belongs to Ca2+–HCO3− type hydro geochemical faces and water-rock interaction primarily controls the lake water chemistry. Based on different Hydro chemical characteristics it is suggested that silicate weathering is the major hydro geochemical process operating in Saheb bandh lake water. Regarding point source contribution of pollutants the average value of NO3-N, TP and Hg are much higher in inlet water (7.5 mg/L, 1.29 mg/L and 8.5 μg/L) than the lake water (1.5 mg/L, 0.05 mg/L and 0.42 μg/L). Risk assessment indices suggest advanced decline of the sediment quality. Water-sediment interaction of heavy metals reveals that Cd, As, Pb and Hg metals enter into lake water as a result of not only natural processes but also of direct and indirect activities of humans. This study recommends that continuous monitoring of these metals in water and sediment and other aquatic biota of Saheb bandh should be directed to assess the risk of these vital heavy metals in order to maintain the safe ecology in the vicinity of this lake. UR - https://jpoll.ut.ac.ir/article_71779.html L1 - https://jpoll.ut.ac.ir/article_71779_2645f7da8d6cc9e742282cf61c04e98d.pdf ER -