engleski

Monitoring of surface water quality in Brčko distrikt

Since rivers play the major role in assimilation or carrying off the municipal and industrial wastewater and runoff from agricultural land, it is necessary to prevent and control the rivers pollution and have reliable information on water quality. Physicochemical determination of pollutants in the Sava River and its tributaries, Tinja and Brka, were conducted in Brčko Distrikt during 2008 and 2009. The obtained results showed that investigated river waters do not fulfill requirements for the second class of surface waters, since the average value of COD, ammonium, total solids dried at 105°C, phosphorus compounds, the consumption of KMnO4 and the coliform bacteria exceed the limit values for this category. Referring to the high level of coliform bacteria, waters from the Sava and the Tinja Rivers were classified as the class III, while the samples from the Brka River were on the border between the classes IV-V. The concentration of heavy metals in all samples was below the limit values of water quality of the class II, except for the iron concentration in the analyzed water from the Brka River. In addition, these results underlined the importance that physicochemical analyses of pollutants should be carried out constantly in the Sava River and its tributaries.

surface water ; water quality class ; pollutant

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