Ambient air and dry deposition, and soil samples were collected at the Aliaga industrial site in Izmir, Turkey. Atmospheric total (particle+gas) ∑ 41 -PCB concentrations were higher in summer (3370±1617pgm −3 , average+SD) than in winter (1164±618pgm −3 ), probably due to increased volatilization with temperature. Average particulate ∑ 41 -PCBs dry deposition fluxes were 349±183 and 469±328ngm −2 day −1 in summer and winter, respectively. Overall average particulate deposition velocity was 5.5±3.5cms −1 . The spatial distribution of ∑ 41 -PCB soil concentrations (n=48) showed that the iron-steel plants, ship dismantling facilities, refinery and petrochemicals complex are the major sources in the area. Calculated air–soil exchange fluxes indicated that the contaminated soil is a secondary source to the atmosphere for lighter PCBs and as a sink for heavier ones. Comparable magnitude of gas exchange and dry particle deposition fluxes indicated that both mechanisms are equally important for PCB movement between air and soil in Aliaga.