公共衛生學系;Department of Public HealthYANG, TZU-TINGTZU-TINGYANGWANG, CHIU-SENCHIU-SENWANG2008-07-302018-06-292008-07-302018-06-291999http://ntur.lib.ntu.edu.tw//handle/246246/80934The fine fraction of the Taipei aerosol mostly comes from particles in vehicular emissions and products of photochemical reactions. The fine particles, in turn, contribute a major part of fine particles in typical indoor environments such as school classrooms, offices, and residential buildings. Most school classrooms in Taipei are not air-conditioned, and therefore the windows remain open nearly all the time when students are in class. As a consequence, the concentration level and chemical composition of aerosol particles in classrooms are comparable to those of ambient aerosols. Although most of the offices and homes are air conditioned in the summer, the air is not much better because the intake air is not cleaned well. The primary purpose of this study is to obtain quantitative relationship between ambient aerosols and indoor aerosols in typical Taipei buildings. We focused the study on fine particles (dp< 2.5pm) and the contributions of vehicular exhausts to the fine fractions of ambient and indoor aerosols.en-USIndoor aerosolambient aerosoln-alkanesfine particlesjournal article