Environmental Pollution of Chemical Nature in Lake Ohrid: Toxicological Parameters in Food Chain

The environmental pollutants of Lake Ohrid have been the object of study in this work. These pollutants have been analyzed along the water accumulating basin of three rivers: Sateska, Ezerka and Vellgozhda; a vertical profile in the lake from its surface to 150m depth; determination of toxic parameters has been performed in two kinds of fish and in some of their organs (gills, liver, muscles and bones). The study of the environmental pollutants of chemical nature of the Lake Ohrid is performed by determination of physico ? chemical parameters, parameters for pollution control and toxicological parameters.