2009 Volume 58 Issue 11 Pages 761-766
The individual particle analyses of suspended particulate matter (SPM:particles less than 10μm in size) collected on tape filters during April 17-18, 2006, in Kawasaki, Japan, were carried out. The chemical elements present in aerosol particles were investigated by using a scanning electron microscope with an energy-dispersive X-ray spectrometer. The fraction of chemical elements detected in the particles collected on April 18, 2006, except for S, was in good agreement with that in Asian dust particles from the Loess Plateau, China. S was not detected in Asian dust particles but was detected in the particles collected on April 18, 2006. Therefore, it was concluded that the particles collected on April 18, 2006, in Kawasaki were Asian dust particles transported from the Asian continent, and the absorption of SO2 or the coagulation of sulfate occurred during the transportation of Asian dust particles.