Evaluation of water quality in lower Euphrates
1987
Al-Faraj, F.A. | Mansour, M.J. (Scientific Research Council, Baghdad (Iraq). Agriculture and Water Resource Research Centre, P.O. Box 2416)
Lower Euphrates between Nasiriyah and Sug Al-shiukh was the site of the present work. An attempt was made to evaluate the quality of lower Euphrates water using different standards, and to study the variation of cations, anions, electrical conductivity, tatal soluble salt, sodium adsorption ratio, and pH with respect to time. Results indicated that salinity level ranges from high to very high, and that sodium level ranges from low to medium according to U.S. salinity laboratory classification. Salinity of water was found in general to be within the "no problem" to "increasing problem" and sodium was within the "increasing problem" to "severe problem" according to the FAO guidelines. The feature of the existing cations concentration is that Na+ Ca++ Mg++ K+. The anions concentration were found to be in the order of S04** (-2) Cl-. Also results indicated the effect of the drainage salty water which flows into the river at the present time on the quality of Euphrates water. pH values were considered within the "normal range" according to the FAO classification
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