Abstract:

The pollution of Lake Egirdir Lake is increasing day by day due to human-induced pollutants, especially agricultural activities. Heavy metals have an important place in these pollution resources. The existing pollution can come from aquatic creatures to humans with the food chain. In this study, eight bottom sediment sampling stations were selected in Egirdir Lake. Some physicochemical parameter values such as pH, conductivity, organic carbon determination, carbonate determination, cation exchange capacity and organic matter determination (%) of the sediment samples were determined. Then, heavy metals of Cd, Pb, Cu, Fe, Ni, Mn, Cr ve Zn present in bottom sediment samples were separated into 4 different chemical fractions and analyzed. The BCR (The European Community Bureau of Reference) sequential extraction method developed by the European Community Bureau of Reference was used in the separation of the heavy metals present in the samples into chemical fractions. ICP-OES device was used to determine the heavy metal concentrations present in the solutions obtained by fractionation. According to the analysis results obtained, pollution and ecological risk assessments were made for amounts of heavy metals determined at the sampling stations.

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