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Research Article Open Access
Increasing heavy metals in freshwater sources can pose severe threats to human being and environment. The heavy metal pollution occurs in rivers, lakes and ponds in various ways such as disposal of industrial effluents, sewage sludge from municipal wastage and modern agriculture practices. Various heavy metals and physico- chemical parameters were analysed during pre monsoon, monsoon and post monsoon seasons in the water of Chinna Waddepally Lake. The results reveal that physico-chemical parameters like Temperature, EC, COD, Total solids were significantly (p<0.05) increased during the monsoon. A drastic increase in chemical parameters like Nitrates and phosphates in post monsoon and Calcium, Magnesium in pre monsoon season was recorded. Results also shows that the content of heavy metals like Lead, Chromium, Copper, Zinc, Cadmium and Iron were significantly increased during post monsoon, whereas the content of Nickel and Mercury did not vary during the three seasons, it is observed.
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Author(s): M. Pavan and G.Benarjee
Heavy metals, Physico-chemical parameters, Pre-monsoon, Monsoon, Post- monsoon, Eutrophication., Plant Sciences, Environmental sciences