engleski

Establishing of monitoring network on Kosovo rivers (Drini i Bardhë, Morava e Binçës, Lepenc and Sitnica)

The main goal of this work was to establish a monitoring network on main rivers of Kosovo. We aim to apply WFD (Water Framework Directive) in Kosovo as soon as possible, and our research could be the first step towards it. Waters of the rivers Drini i Bardhë, Morava e Binçës, Lepenc and Sitnica, which are of supra-regional interest, are investigated systematically for the first time. Statistical methods are applied to find locations where integrated water resources management can be suggested. Sediments of these rivers were also investigated at the same monitoring points and results have recently been published by us. In this paper we present results of mass concentrations of ecotoxic metals: Cu(II), Pb(II), Cd(II), Zn(II) and Mn(II) in waters of four main rivers of Kosovo. The natural aqua equilibration is done by Anodic stripping Voltametry (ASV), AAS and UV-VIS spectrometry. Also some physico-chemical parameters are determined: water temperature, electric conductivity, pH, alkalinity, etc. Results of concentrations of ecotoxic metals in water are compared with concentrations found in sediments. Also, we compared the data with some available results from the past, during the period 1978-1983. The last available results were from the year 1989. Our results are showing that concentrations of Cu and Zn in water are low and pose no risk for living organisms. But, contamination with Pb and Mn is high at one station on Drini i Bardhë River and at all stations along Sitnica River. Cd in high concentrations is measured only at two stations, one on Morava e Binçës River and one on Sitnica River. Comparison with available results from the past show that water pollution decreased since 1989, what is explained with closing of heavy industry since then. Continuation of water and sediment monitoring is highly recommended, as well as establishing of permanent network of monitoring stations.

Monitoring network; Water Framework Directive; Rivers of Kosovo; Ecotoxic metals; Pollution

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