COMPARISON OF AEROSOL CHARACTERISTICS OVER MAINLAND OF CHINA AND WESTERN PACIFIC AND ITS LONG-RANGE TRANSPORT

Based on the aerosol data obtained at Shangdianzi regional background monitoring station together with the air trajectory analysis,the chemical constituents of the aerosol from the different sources are discussed and compared with the aerosol samples collected over the western Pacific.The results show that the relative mass concentrations of the crustal and pollutant elements in the aerosol collected over the ocean are higher than those being observed at Shangdianzi in particle size above 4.7 μm and below 0.65μm in diameter.The variations of the enrichment factors of these elements in marine aerosol with particle size are different from those in shangdianzi's samples.The former enrichment factors are evidently higher than the latter above 1.1 μm in diameter.On the basis of the comparative research,the long-range transport processes of aerosol particles are discussed.