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Abstract of the Article

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Effects of the reservoir of the Karkheh reservoir dam on the quality of the water entering the reservoir

Authors:
[ Ali NikooNahad ] -
[ Hadi Moazed ] -

Abstract:

Karkheh reservoir dam is located at the Northwest Side of the Khouzestan Province on the Karkheh River and is the biggest reservoir dam in Iran. The length of the lake of the dam is 60 km , and the valume of the reservior of the dam is about 7.2 × 109 cubic meters . To assess the effects of the reservoir of the dam on the quality of the water entering the reservoir , four sampling stations were chosen. Water Samples were teken every 2 months for one year ( from khordad 84 to Farvardin 85 ) and the quality of the water were determined by the NSFWQIm , NSFWQIa , OWQI , and DSWI water quality indices. The results of the study showed that the NSFWQIm and DSWQI water quality indices had the better potential to indicate the variations of the water quality. Thus the NSFWQIm and DSWQI water quality indices were chosen as the best indices for showing environmental variations, and public quality variations , respectively. The results of the study also indicated that the minimum values of the NSFWQIm and DSWQI indices were obtained at the entry station of the dam and the maximum values obtained at the exit station.

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