Non-exhaust emissions from mobile sources have increased as tailpipe emissions have been substantially reduced in response to stringent emissions standards in California. Understanding the characteristics of brake- and tire-wear emissions would be the primary task in assessing potential adverse health effects of the emissions, particularly in communities near roads, due to the presence of heavy metals in the PM. The California Air Resources Board has undertaken investigations to characterize airborne non-exhaust PM emissions and their potential health effects. This webinar will outline its overarching research goals, the findings from completed studies, and the status of ongoing research in California.
