Pollution
Central Pollution Control Board conducts stream classification on the basis of designated best use
The classification sets primary water quality criteria to Indian rivers, in order to understand the best use of water
This document was prepared by the Central Pollution Control Board in its report entitled 'Scheme for Zoning and Classification of Indian Rivers, Estuaries and Coastal Waters' (ADSORBS/3/1978/-79). The Central Board classified the inland surface waters into five categories (A to E) on the basis of designated-best-use. The principal concern here is the end use to which the water may be put to by man.
The classification has been made in such a way that the water quality requirement becomes progressively lower from A to E. Besides, the water quality of any one of the five categories also satisfies the requirements of categories lower than the chosen one.
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