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During the last three decades, polychlorinated biphenyls (PCBs) and chlorinated pesticides such as HCB, HCH and DDT, have been recognized as ubiquitous pollutants even in the most remote regions of the globe. Dispersion of these compounds occurs mainly via mass flow in the atmosphere. The first data concerning organochlorines (OCs) in marine air samples from low-mid to high latitudes were reported by Tanabe et al.(1982), who undertook air sampling on an Antarctic supply voyage between Japan and the Syowa Research Station in 1980–1981. This study showed a north–south gradient for DDTs and HCHs. Concentrations of OCs in the air were again measured by Tanabe et al.(1983) along two extensive cruise tracks (Australia to Antarctica and Mauritius Island to Syowa Research Station) in 1980–1981 and 1982, respectively. Kawano et al.(1985) collected samples of marine air in the eastern Indian Ocean and in the Southern Ocean off Australia during 1983–1984. Bidleman et al.(1993) measured chlorinated pesticides in air samples during a cruise between New Zealand and Ross Island, Antarctica in 1990. Iwata et al.(1993) made an important study of

OCs distribution in the oceanic air and surface seawater from various oceans, including the Southern Ocean during 1989–1990. Organochlorine data from the Southwest Atlantic and Antarctic Oceans was reported by Weber and Montone (1990) during a cruise between Brazil and the Antarctic Peninsula in the austral summer of 1987. Schreitmüller and Ballschmiter (1994) measured PCBs of the atmosphere during north–south cruises across the Atlantic Ocean in 1990–1991, but not …