The results indicated that median lethal concentration (LC50) of Caspian sea kutum (Rutilus frisii kutum) for 24, 48, 72 and 96 h of exposure are 2.944, 2.756, 2.562 and 2.310 ppm,
The resultsindicated that median lethal concentration (LC50) of Caspian sea kutum (Rutilus frisii kutum) for 24, 48,72 and 96 h of exposure are 2.944, 2.756, 2.562 and 2.310 ppm,