摘要：Surface water and the sediments from the two banks of Damodar River on seasonal basis, in the Asansol to Durgapur industrial area of West Bengal were analyzed for heavy metals such as, copper, chromium, zinc, lead and manganese. Physico- chemical properties of surface water like pH, conductivity, hardness and dissolve oxygen in the river also have been found. River sediment were analsed for organic carbon, pH and grain size nature. It is observed that the surface water quality parameters such as pH, hardness are mostly with in the normal range whereas the dissolve oxygen in most cases were below the desirable minimum level with lowest value of 2.6 mg/L. Metal concentrations except copper are moderately high with manganese being the highest recorded 437 μg/L. The metal concentration in sediment samples were about ten times higher than those of surface water. Grain size analysis revealed unimodeal distribution with moderate to well sorted particles.
关键词：Sediment; Damodar River; Heavy metals; Grain size; Asansol-Durgapur
