We present the results of determination of saturated hydrocarbons and polycyclic aromatic hydrocarbons in the atmospheric aerosol of Novosibirsk and one of its suburbs in winter and summer. Possible sources of inflow of n-alkenes into the atmosphere were determined by the CPI-index and Cmax. Total content of saturated hydrocarbons in the aerosol of the city and suburb is 25-38 ng/m3. Total concentrations of polycyclic aromatic hydrocarbons in the aerosol of Novosibirsk and Klyuchi in winter are 37 and 96 ng/m3, respectively. The organic compounds were determined by the method of chromatography-mass spectrometry.