Having used electron microscopy permits and microanalysis systems for monitoring the general chemical composition of the sample researched forms of occurrence of toxic elements in the granitoids one of regions. As a result, studies have established stable and unstable forms of occurrence of toxic elements. Concluded that secondary hydrothermal forms of concentration of toxic elements may constitute an environmental hazard. Two cycle scheme proposed geoecological monitoring, providing samples of sediment and flowing waters of the river basins.