M/s Akone Services, Lucknow (India)
Biosphere consist water in various forms of which oceans contain 97%. Remaining 3% is divided between glaciers, polar caps and rivers. A minute quantity (0.6%) is present in rivers. Although a small quantity, it is the major and substantial source for domestic, irrigation, industrial and daily activities. The quality of water is in great demand and hence need to be determined before its use. Water Quality Index is one of the factors for determining quality of any particular water bodies. One such study was carried at Erai River during monsoon to determine the WQI of the river. Prerequisite to WQI, physico-chemical properties of Erai River were determined and the work has been already published. This paper aims to determine WQI of the Erai River and the results showed that the WQI of Erai River was of fair quality (below average) during monsoon 2020. Samples were collected from five different locations of Erai River for a period of two months (July – August) and based on the test results WQI was determined. Direct consumption of such quality of water can cause serious threat to aquatic lives as well as to humans.