If you’re in Southern Ontario, you might see a white truck emblazoned with the word “Maple” traveling the streets. No, it’s not a Canadian-themed food truck. Instead, it is filled with sensitive equipment that can measure the composition and size of particulate matter in the air. MAPLE, or Mobile Analysis of ParticuLate in the Environment, is the mobile sampling vehicle from the Southern Ontario Centre for Atmospheric Aerosol Research operated by Professor Greg Evans research group from the University of Toronto.
Atmospheric aerosol is a fancy name for particulate pollution floating around in our air. We breathe these tiny particulates every day, and they affect both our health and our environment. The Evans research group investigates where these particulates come from, where people are exposed to them, and what happens after people are exposed, to help us understand how to adjust our lifestyles. Some people are more vulnerable to particulate inhalation and it’s important for this population to know when they should be outside or when they shouldn’t.
Professor Evans also collaborates with all levels of government in order to help guide policy. For example, eliminating coal-based electricity in Ontario helped to decrease particulate pollution. Now vehicles are one of the major sources of particulates in the air. The Evans research group recently found that fuel-efficient engines that reduce CO2 emissions actually increase black carbon particulate emissions. This type of information can help guide policy and public behaviour so that the investments we make today can create a better world for our children.