Indoor Particulate Matter of Outdoor Origin: Importance of Size-Dependent Removal Mechanisms

摘要: Adverse human health effects have been observed to correlate with levels of outdoor particulate matter (PM), even though most exposure PM origin occurs indoors. In this study, we apply a model and empirical data explore the indoor for two major building types:  offices residences. Typical ventilation rates each type are obtained from literature. Published combined theoretical analyses develop representative particle penetration coefficients, deposition loss rates, ventilation-system filter efficiencies broad size range (i.e., 0.001−10 μm). We archetypal number, surface area, mass distributions both urban rural airsheds. also use on mass-weighted specific chemical constituents PM:  sulfate elemental carbon. Predictions size-resolved proportion particles (IPOP) various conditions ambient d...