Erzurum Bölgesindeki İçme Sularının Kalitesinin Belirlenmesi.

In this research, Erzurum fountains and network waters were investigated in terms of microbiological, physical and chemical properties. The values of cloud, colour, smelt, taste of the water samples were thought that they were acceptable and there were no abnormal changes by consumers. pH rate of the water samples was assessed as 6.65-8.33 (average rate 7.31). The rate of conductivity and nitrite of the samples varied from, respectively 113-830 µS/cm (average rate 453.4 µS/cm) and 0.02-0.25 mg/lt (average rate 0.083 mg/lt). The rate of nitrate of the samples varied from 9.60-26.85 mg/lt (average rate 17.44 mg/lt) in the centre of Erzurum and Erzurum's counties. The rate of nitrate varied from 50.17-145.84 mg/lt (average rate 95.88 mg/lt) in half of all public drinking fountain (6 of 12) in the centre of Erzurum and the rate was defined that it was not proper to legal limits. The rate of nitrate varied from 14.03-47.73 mg/lt (average rate 34.55 mg/lt) in the other half of all public drinking fountain (6 of 12) in the centre of Erzurum and the rate was defined that it was proper to legal limits. The rate of ammonium, arsenic, aluminum and lead of the samples varied from, respectively 0.07-0.59 mg/lt (average rate 0.183 mg/lt), 0-0.432 µg/lt (average rate 0.036 µg/lt), 0.04-0.25 µg/lt (average rate 0.115 µg/lt), 0-0.613 µg/lt (average rate 0.049 µg/lt). The rate of iron of the samples varied from 0.04-0.18 mg/lt (average rate 0.10 mg/lt) in the centre of Erzurum and Erzurum's counties. Presence of E. coli and coliform bacteria was observed in 117 of 1403 samples (%8.33). Average pH, conductivity, nitrite, nitrate, ammonium, iron, arsenic, aluminum and lead values of waters were determined as 7.31, 429.56 µS/cm, 0.08 mg/lt, 26.39 mg/lt, 0.20 mg/l, 0.108 µg/l, 0.038 µg/l, 0.110 µg/l and 0.054 µg/l respectively. [ABSTRACT FROM AUTHOR]