Evaluation of the Effect of Dissolved Metals Detected in Değirmendere Dam (Amasya, Turkey) on Drinking and Irrigation Water Quality

Abstract

Dams are important sources particularly for energy production as well as drinking and irrigation water. In this study, dissolved metal concentrations in Değirmendere Dam water in Amasya province were determined by ICP-MS and the data were evaluated in terms of drinking/irrigation water. Mean value of each metal in samples collected from 5 different points of the reservoir is presented in µg L as follows; Ca (50943)> Mg (42212)> Na (31637)> K (3725)> Al (63.68)> Fe (43.30)> Zn (30.78)> Cu (5.79)> Mn (4.59)> Ni (2.97)> Cr (1.18)> Pb (1.14)> As (1.04)> Cd (0.69). These results did not exceed the drinking water limit values recommended by the World Health Organization (WHO) and Turkish Standards (TS 266). Water quality index (WQI), heavy metal pollution index (HPI) and heavy metal evaluation index (HEI) values were calculated as 16.63-17.54-1.00, respectively. In terms of hazard quotient (HQ), hazard index (HI) and cancer risk (CR), the water quality of the reservoir is not potentially dangerous for adults/children. Dam water is convenient for irrigation based on sodium absorption rate (SAR = 0.78) and sodium percentage (Na = 19.56%). However, magnesium hazard (MH = 57.70) value is above the limit value of 50 with reference to irrigation water.