Abstract: Over the sand-dust source areas,The changes of the concentration and the granular distribution characteristics of atmospheric aerosol at the different heights are not considerable whether during dust-storm or the periods without dust-storm,the peak values of the concentration of atmospheric aerosol particles shift towards the coarser particles during dust-storm comparing with that during without dust-storm; Over Wako of Japan,a sand-dust sedimentary area,the curves of concentration distribution of atmospheric aerosol particles are bimodal during “Kosa” but unimodal during without “Kosa”,the former reflects that the atmospheric aerosol particles come from two sources,I.E.the continental deposit and the local industrial discharge,and the latter reflects that the atmospheric aerosol particles come from the local industrial discharge only.Over the Japan during “Kosa” the concentration of atmospheric aerosol particles is much lower that of than the sand-dust source areas during dust-storm over the Japan.This shows that atmospheric aerosol particles of reaching over the Japan is a very less part of atmospheric aerosol particles over the sand-dust source areas.

Key words: Sand-dust source areas, Sand-dust sedimentary area, the continental deposit, Local industrial discharge, The water-insoluble compositions