Evaluation of Bartın River Water Quality Index and Suitability as Irrigation Water with Physicochemical Parameters

In this study, it was aimed to determine the water quality of Bartın River and its usability as irrigation water. order evaluate change according precipitation samples were collected from 4 points in December July months. pH, NO3, SO4, Cl-, total phosphorus, COD, SS, turbidity, some cations metals analyzed samples. It determined that SS turbidity parameters increased after 98% caused by SS. Na+, K+, Ca+2, Mg+2, TP higher dry period. Although TDS, EC, NO3 rainy season, difference between two periods is not much. According index, poor at all sampling during season. period, good also only 1 point. COD parameter with greatest effect on effective weight quality. Irrigation suitability evaluated indices SAR, %Na, MR, KI, PT TH. suitable both KI indexes. However, since potential salinity (PS) value greater than 3 µeq/L Its hardness >180 mg/L, so very hard class.