CHEMICAL COMPOSITION OF AEROSOLS AT BP PROJECT GROUND STATIONS.

Aerosol measurement results are presented for all BP Project ground stations, as well as tentative speculation on the possible source(s). In general, the USSR emission sources are the likely major contributors of particulate air pollutants in the Norwegian Arctic both during the winter and the summer half-year, while the European and possibly North American sources appear to contribute only during the summer half-year.