| Summary: | 碩士 === 國立屏東科技大學 === 環境工程與科學系所 === 96 === Most of street fugitive dust studies focused on TSP and PM10 removal in the past. However, little attention has been paid to influence of street sweeping and traffic flux on roadside atmospheric particle concentrations. In this study, a manual dichotomous sampler (Dichot) and a GPS1 PUF sampler (PS-1) were used to collect atmospheric particles before and after street sweeping for TSP, PM10-100, PM2.5-10, and PM2.5 measurements. The results show that street sweeping removed particles more significantly for large particles (PM10-100 and PM2.5-10) than for fine particles (PM2.5). From the linear regression correlation between traffic flux and particle concentration in different size ranges, it was found that about 44% variance of roadside TSP and 45% variance of PM2.5 were contributed by the traffic fluxes, which however had less influence on the variance of PM10-100及PM2.5-10, implying that the traffic flux influenced the concentrations and coarse/fine size distributions of roadside particles, especially those of the fine particles.
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