Water pollution is one of the most serious environmental issues affecting both ecosystems and human health. Man made activities are causing a rise in water contamination, posing a significant environmental and public health threat to the crucial natural resource of water. This study focuses on evaluating the quality of water collected from different sources in Kokrajhar district of Assam, including three rivers (Champabati, Tunia, and Gaurang) and one packaged drinking water (Jharna Jal). The collected samples were analyzed in the district-level water testing laboratory using standard procedures and some key parameters viz. pH, Turbidity, Total alkalinity, Electrical conductivity, Total dissolved solids, Total Hardness, Calcium, Magnesium, Iron, Chloride (as Cl), Fluoride, Arsenic, Sulphate (as SO4) and Nitrate (as NO3) were tested. The study reveals that some parameters of Tunia river water is in the higher side and moderately polluted, likely due to the-influence of domestic sewage, agricultural runoff, and anthropogenic activities in nearby areas. In contrast, the packaged water sample shows values well within the acceptable limits of drinking water standards, indicating good quality. These findings highlight the urgent need for pollution control measures, regular water quality monitoring, and awareness among-local communities near the Tunia river.
Water pollution, TDS, Iron, Fluoride, Arsenic, Water quality index
