Özet:

In the study, Erzurum rivers and network waters have been studied in terms of their microbiological, physical and chemical properties. In water samples, the pH value is 6.65-8.33 (medium 7.31), the humidity and color, and the smell and taste values are within consumer acceptable limits. The conductivity value was found to vary between 113-830 μS/cm (medium 453.4 μS/cm) and the nitrit value between 0.02-0.25 mg/l (medium 0.083 mg/l). In water samples in the Erzurum province and district centers, the nitrate value was determined between 9.60-26.85 mg/l (medium 17.44 mg/l). In 6 of the total 12 populations located in the Erzurum center (50%) the nitrate value was at the level of 50.17-145.84 mg/l (medium 95.88 mg/l) and was not in accordance with the values in the regulation. In water samples, ammonia, arsenic, aluminum and bullets were found to vary between 0.07-0.59 mg/l (medium 0.183 mg/l), 0-0.432 μg/l (medium 0.036 μg/l), 0.04-0.25 μg/l (medium 0.115 μg/l), 0-0.613 μg/l (medium 0.049 μg/l) respectively. In water samples in the Erzurum province and district centers, the amount of iron was determined between 0.04-0.18 μg/l (medium 0.10 mg/l). A total of 1403 water samples, 117 of them (8.33) contained E. coli and koliform group bacteria. The average pH, conductivity, nitrate, nitrate, ammonia, iron, arsenic, aluminum and bullet values of water are determined at 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.

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