Electron Probe Microanalysis (EPMA) of Studded Tire-generated Dust (Dust Fall) in Winter Season in the Matsumoto Area in Nagano Prefecturet

Abstract

The EPMA of studded tire-generated dust (dust fall) in winter season in the Matsumoto area (about 600 m above sea level) in Nagano Prefecture was carried out by a SEM equipped with an EDS instrument. The sample was collected in a dust jar during winter season as dust fall. The characteristic particles in the EPMA data are as follows : 6-2, spherical porous shape; main element, sulfur; followed Si, Al; about 40 pm, 6-9, long and slender shape; main element, Si and Al; 91-4 long and slender shape about 50 pm; main element -5, Fe sharp peak; 91-1, Mg relatively large peak, respectively (Figs.1-4).