A few-parameter model is proposed for reconstruction of long-term aerosol pollution of the environment near motorways. The concentrations of lead, polycyclic aromatic hydrocarbons, and macrocomponents in snow are reconstructed using the data of snow sampling late in winter of 1999/2000 in the zone of strong effect of the Sovetskoe motorway (Novosibirsk). Changes in the structure of aerosol emissions of motor transport are analyzed in comparison with the previous winter period.