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Water is the dynamic source, essential for all aspects of human and ecosystem for existence and health. Due the human and industrial activities the river water is contaminated. This is serious problem now a days. Many heavy metals have their toxic effects on man and environment. Chemical weathering of minerals, mining activities and industrial discharges increased heavy metals concentration in water. During the study period 2016-2017 and 2017-2018 water sample were collected of Kotepally lake during pre-monsoon, monsoon and post monsoon and metal analyses carried out to assess the Copper, Zinc and Nickle. The present study revealed the impact of various metals, even though they do not heavy any biological role, remain present in some or the other form harmful for the human body and its proper functioning.
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