Groundwater nitrate pollution in an alluvium aquifer, Eski?ehir urban area and its vicinity, Turkey |
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Authors: | F Kaçaro?lu G Günay |
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Institution: | (1) Cumhuriyet University, Department of Geological Engineering, 58140 Sivas, Turkey, TR;(2) International Research and Application Center For Karst Water Resources, Hacettepe University, Beytepe 06532 Ankara, Turkey, TR |
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Abstract: | A large amount of the water requirement (municipal, industrial, etc.) of Eskişehir city, Turkey, is supplied from groundwater
via wells in the urban area. The groundwater in the Eskişehir Plain alluvium has been polluted by municipal and industrial
wastewater, and agricultural activities. The nitrate concentrations at nine sampling points on Porsuk River, the main water
course in the plain, ranged from 1.5 to 63.3 mg/l during the period from July 1986 to August 1988. In the same period, the
nitrate concentrations measured in water from 51 wells ranged between 2.2–257.0 mg/l. The nitrate content of the groundwater
samples was 34.2% above 45 mg/l, the upper limit for nitrate in drinking water standards. High nitrate levels were observed
in water from wells in the central and eastern parts of the urban area. The nitrate content of the well water is subject to
seasonal fluctuation. In general, low nitrate concentrations were observed in wet seasons, and high ones in dry seasons.
Received: 16 April 1996 · Accepted: 2 October 1996 |
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Keywords: | Groundwater Nitrate Pollution Eskiş ehir Turkey |
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