Is the Euphrates river fresh water?

The salinity in the Euphrates is highly variable, depending on the season and distance from the mouth. In general, the salinity of the Euphrates is higher than that of both the Tigris and Nile Rivers. The average salinity of the Euphrates at Hit, Iraq is 1,500 mg/L, while the salinity of the Euphrates near its mouth is 2,500 mg/L.