Concurrent ambient air and dry deposition samples were collected during two sampling periods at the Aliaga industrial region in Izmir, Turkey. ∑ 15 -PAH (particulate+gas) concentrations ranged between 7.3 and 44.8ngm −3 (average±S.D., 25.2±8.8ngm −3 ) and 10.2–71.9ngm −3 (44.1±16.6ngm −3 ) in summer and winter, respectively. Winter/summer individual ambient PAH concentration ratios ranged between 0.8 (acenaphthene) and 6.6 (benz[a]anthracene) indicating that wintertime concentrations were affected by residential heating emissions. In contrast to the ambient concentrations, ∑ 15 -PAH particle dry deposition fluxes were higher in summer (5792±3516ngm −2 day −1 , average±S.D.) than in winter (2650±1829ngm −2 day −1 ), probably due to large particles from enhanced re-suspension of polluted soil particles and road dust. Average overall dry deposition velocity of PAHs calculated using the dry deposition fluxes and particle-phase concentrations was 2.9±3.5cms −1 . ∑ 15 -PAH concentrations in soils taken from 50 points in the area ranged between 11 and 4628μgkg −1 in dry weight. The spatial distribution of these concentrations indicated that the urban Aliaga, steel plants, the petroleum refinery, and the petrochemical plant are the major Σ 15 -PAH sources in the area. Fugacity calculations in air and soil showed that the soil acts as a secondary source to the atmosphere for low molecular weight PAHs in summer and as a sink for the higher molecular weight ones in summer and winter.