Study water quality of the Tigris and the Euphrates River with the progress of time

Abstract

This investigation has been conducted to study water quality of the Tigris and the Euphrates River with the progress of time. The BOD values increasing with time increase from 1970 to 2010. The increasing was in Euphrates water more than Tigris water .Also, The EC values have been increased .The relation between water discharge and TDS was ( r = -0.838* ). It is significant at 0.05 level. It means the TDS increases with decrease of water discharge .The relation between water discharge and BOD was(r = 0.986(**)). It is highly significant at 0.01 level. It means the BOD increases with decrease of water discharge .This is due to a combination of drought, and increased water withdrawal and damming in Turkey and Syria. In addition of increasing population.