On The Evaluation of Water Quality Index: Case Study of Euphrates River, Iraq

This study is used the water quality index (WQI), which generated by combining several parameters. gives a helpful representation of overall for public and all intended applications, it demonstrates that pollution beneficial in management decision-making. The Euphrates River was assessed order to determine drinking water. using WQI, includes ten physicochemical criteria. achieved submitting comprehensive analysis samples collected from 5 stations city Hit-Iraq during 2020-2021. parameters included: pH value, Nitrate (NO3), Sulphate (SO4­), Turbidity, temperature, Calcium (Ca), Magnesium (Mg), sodium (Na), electric conductivity (EC) Total Dissolved Solids (TDS). accomplished full obtained sites Hit, Iraq, between 2020 2021. results present show, total average WQI 110,156. high caused TDS magnesium concentration due different human activities along river reach. classified as 'very poor quality' with minimum 97.85 June 121.75 November.