ENVIRONMENTAL INTEGRITY OF NORTHERN PLAIN REGION OF RIVER UMTREW (DIGARU), NORTH EAST INDIA.

Evaluation of river water quality is one of the most important aspects of water resource assessment. River Umtrew (Digaru), which originated in Meghalaya and runs down to Assam plains before merging with the mighty Brahmaputra, is one of the main drainage systems of this region. Using some physical, chemical and biological indicators of river water, the current study attempted to assesses its environmental integrity. The current study provides a clear image of the health of the river, as well as differences in the river's pollution levels at various locations. [ABSTRACT FROM AUTHOR]