Assessment of the Health Impacts of Particulate Matter Characteristics

This report describes a study by Dr. Michelle Bell of Yale University to evaluate the effects of exposure to components of the PM2.5 mixture on short-term morbidity and mortality, using data on 52 components of PM_2.5 for 187 US counties. The report explores regional and seasonal variation in the chemical composition of PM_2.5 and whether this variation affects the association between short-term exposure to PM and health effects. This study was funded under the Walter A. Rosenblith New Investigator Award.