New report on particulate matter exposure and mortality in Canada

HEI has published a new report, Long-Term Exposure to Outdoor Ultrafine Particles and Black Carbon and Effects on Mortality in Montreal and Toronto, Canada, which presents a study led by Scott Weichenthal of McGill University in Montreal. The study assessed associations of long-term exposures to outdoor ultrafine particles (UFPs) and black carbon with mortality in 1.5 million Canadian adults, using several exposure modeling approaches. Weichenthal and colleagues found that long-term exposures to UFP number concentrations and black carbon were positively associated with mortality in single-pollutant models ― results that support earlier research that long-term exposures to elevated UFP concentrations are harmful to human health.