In the paper, results of a substantial study of nanoand microparticles of atmospheric suspensions contained in snow in winter 2011-2012 in Blagoveshchensk have been presented. Distribution of airborne particles of different origin in 25 areas of sampling differing in anthropogenic loadings has been determined. Large and average-sized traffic centers supply in the atmosphere microparticles of rubber, asphalt and various metals and their oxides (Fe, Ni, Co, Cu, Fe, Bi, W). Railway junctions are a source of microparticles of Fe and soot which get to the atmosphere because of friction of metal surfaces and diesel locomotive engines operation. Parks and suburban districts are a source of microand macroparticles of natural minerals and rocks and of vegetable detritus. It has been shown that composition of atmospheric suspensions of Blagoveshchensk completely corresponded to ecogeographi-cal prerequisites the bank of two large rivers, small impact of enterprises and motor transport, a large railway junction.

The paper has presented the results of a study of nano- and microparticles of suspended air contained in snow in winter 2011-2012, Blagoveshchensk. The application of the laser particle analyzer for the study of qualitative and quantitative composition of atmospheric precipitation has been shown. The distribution of the particles different by sizes and genesis in the city areas with differences in anthropogenic impact has been revealed.