Study On the Assessment of Heavy Metals in Gogi Lake, Yadgir District, Karnataka, India

Abstract

The lakes are the source of people's livelihood for surrounding communities, due to urbanization, and industrialization, these lakes are threatened with emerging environmental pollution as well as heavy metal pollution is a thoughtful major problem for lakes and wetlands. Heavy metal containment was toxic to human health, and the natural environment. Our study , aims to find out the concentration of heavy metals in the aquatic ecosystem. The study was conducted in a one-year period of three seasonal variations of ten different sites during the period of June 2020 to May-2021 of Gogi Lake. The analysis of the concentration of heavy metals is Zn, Cu, Mn, Cr, Fe, Mg, Cd, and Pb. The collection of samples, sampling preparation, pre-treatment processing, and analysis by using the instrument atomic absorption spectrophotometer (AAS) was done and data was subject to descriptive statistics to arrive at meaningful conclusions. During the study period, Zn concentration was found 0.01564 mg/L to 2.05866 mg/L, The Cu concentration ranged from 0.06794 mg/L to 0.01243 mg/L. Fe was found at 0.285 mg/L to 0.0256 mg/L, Mn concentration between 0.03272 mg/L to 0.00626 mg/L, The Cr was found at high concentration in monsoon season 0.0174 mg/L at site 2 and low concentration was found in post-monsoon 0.0015 mg/L at site 1., the study revealed. Heavy metals have been shown within the permissible limits, except Pb, as per recommendations of WHO and BIS 10500 2012 standard of water criteria. The objective of the present research was to assess the concentration of heavy metals to understand aquatic environment problems. and the study recommended that continuous monitoring and assessment investigation will be beneficial for the management and protection of this Lake.