UPSTREAM-DOWNSTREAM CONTAMINATION GRADIENT OF THE FLUVIAL URBAN SYSTEM IN CHENNAI

Human beings need water as a main component for their survival, water is a deep necessity for our day to day activities. Water exists in various forms, in the available forms we can only consume the fresh water, and earth has an estimated availability of 1400 million cubic kilometers of water out of which 2.7% is consumable fresh water.

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