AEROSOL PARTICLES IN THE ANTARCTIC MARINE ATMOSPHERE

Aerosol were sampled in the Antarctic marine atmosphere over Breid Bay (70°12′S) from December 1986 to February 1987. According to electron microscope observation of the particles collected on calcium thin film, most particles are sulfuric acid particles. Size distribution of the reaction rings suggests that the particles are rather smaller than that collected inland in Antarctica in summer, although both aerosols are sulfuric acid particles. This suggests that the particle formation, growth and removal processes of particles in Antarctic marine atmosphere differ from those in the inner Antarctic region