Linking In-Vehicle Ultrafine Particle Exposures to On-Road Concentrations.

ABSTRACT: For traffic-related pollutants like ultrafine particles (UFP, D_p < 100 nm), a significant fraction of overall exposure occurs within or close to the transit microenvironment. Therefore, understanding exposure to these pollutants in such microenvironments is crucial to accurately assessing overall UFP exposure. The aim of this study was to develop models for predicting in-cabin UFP concentrations if roadway concentrations are known, taking into account vehicle characteristics, ventilation settings, driving conditions and air exchange rates (AER). Particle concentrations and AER were measured in 43 and 73 vehicles, respectively, under various ventilation settings and driving speeds. Multiple linear regression (MLR) and generalized estimating equation (GEE) regression models were u

SUBMITTER: Hudda N 

PROVIDER: S-EPMC3718189 | biostudies-literature | 2012 Nov

REPOSITORIES: biostudies-literature