The relevance of the work is caused by the fact that spreading of emissions of man-made pollutants in atmosphere, atmospheric precipitation, snow cover is a real threat to the health and quality of life of population, functioning of natural ecosystems and primarily by imperfection of technology. The main aim of the research is to study the elemental composition of the filtrate snow cover and snow solid sediment in the area of emissions of Bratsk industrial site. Methods: ICP-MS, X-ray analysis (X-ray powder diffractometer XRD-7000 SHIMADZU) and research on the scanning electron microscope JEOL JIB-Z4500 with energy detector Oxford X-Max80, photometric method. Results: the authors have compared the microelement composition of the filtrate snow water in Bratsk with regional values, standard data of element content in drinking water and the trace-element composition of the solid residue of snow with clarks of elements in the earth's crust. The influence of solid and gaseous emissions aluminum plant and thermal power complex was detected. The paper demonstrates the dependence of fluorine content change in rain sediments on rainfall intensity and the dynamics of fluoride daily precipitation in rain and snow.