Research Report 203 describes the first-phase results of a study evaluating the relationship between long-term exposure to low concentrations of PM2.5 and non-accidental mortality, including a characterization of the shape of the concentration–response functions, in a large population-based cohort (~9 million adults) in Canada. The report also presents the detailed Commentary on the study by HEI’s Low-Exposure Epidemiology Studies Review Panel.
