Application of integrated water quality index (Iwqi) model and dissolved oxygen saturation percentage for comparative evaluation of water quality and appropriacy of river ganga at rishikesh and hardwar

Abstract

Integrated Water Quality Index (IWQI) succor intricates water quality data into rationalized insight to determine water quality from a source or any water supply in an exceedingly consistent and unbiased manner. Ganga River, being the source of water supply in the entire Indo-Gangetic region is diminishing due to poor water quality. It is highly indeterminate to determine the status of a river’s water quality; hence, frequent monitoring of river water is necessary. The present study was undertaken to comparatively evaluate the Percent Saturation of Dissolved Oxygen and integrated water quality index of River Ganga at Rishikesh and Hardwar. Six parameters were selected to derive the IWQI for determining water potential for a total of 14 sampling sites and were compared with BIS Standards. The outcomes revealed that the water quality of the river falls from good to marginal and about to borderline to poor status, thus it concludes that the quality of river water in its native region is on the verge of declination.