Abstract:

Thirteen aerosol samples were taken by a 8grade cascade impacttype collector during the Chinese National Antarctic Research Expedition from December,1991 to January,1992. These samples were analyzed by PIXE for 17 chemical elements,i.e. Al,Si,P,S,Cl,K,Ca,Ti,V,Cr,Mn,Fe,Ni,Cu,Zn,Br and Pb. The elemental composition, masssize distribution,geochemical classification of aerosols and the contribution from different sources were studied with the application of enrichment factor analysis,correlation analysis and main factor analysis.The results revealed that the elemental source, composition, masssize distribution of the aerosols in the studied area display a significant geographical pattern.Most of the marine aerosols originated from sea water and have been affected by the environment of the marine and its surrounding areas.They have also been influenced by regional and global atmospheric circulation with the nearcoast atmosphere significantly affected by continentoriginated materials transportation. The volcanic eruption in Philippine and at Hudson Volcano of Chile in that year as well as the Gulf War also exerted influences on the characteristics of aerosol in this area.