Water quality analysis using WQI (water quality index): Review paper.

Water is the most consumed matter in the world. 97% of water is saline which cannot be used easily for domestic purposes and the water which can be easily treated is limited as the groundwater table is depleting due to irrigation purposes and water consumption is rural areas. To solve this issue, we must focus on surface water resource such as rivers, rivulets etc. For using such source there should be a meticulous quality audit of substantial water samples of that source to properly ensure suitability for domestic water use. Hence it is conspicuous that water quality is very imperative. For a rational and scientific analysis of water quality, there should be a mathematical parameter. For that matter, we have a water quality index to ensure rationality during the quality audit. We shall include pH, TDS, alkalinity, hardness conductivity, turbidity, dissolved oxygen, chlorine content, fluorine content etc. [ABSTRACT FROM AUTHOR]