Exploring the connections between aerosols and clouds in the high Arctic summer

Photo credit: Julia Burkart

It’s well known that the Arctic climate is influenced by anthropogenic contributions like heating during the winter and regional sources in the summer. But the chemistry of the aerosol environment and its influence on the cloud formation over the Arctic is less understood. Dr. Julia Burkart and Megan Willis, a postdoctoral fellow and Ph.D. student respectively, at the University of Toronto’s Department of Chemistry presented findings from their NETCARE summer aircraft campaign in Resolute Bay, Nunavut at the SOCAAR Seminar held on November 5. Continue reading

Near-road measurement of traffic-related pollutants

Photo Source: Wikipedia user Aliamizi

Photo Source: Wikipedia user Aliamizi

Traffic related pollutants were officially classified as carcinogenic by the World Health Organization in 2013. For the many Canadians that live or work near roadways, this could be a risk factor which may negatively impact their health.

Dr. Cheol-Heon Jeong and Jon Wang, both of UofT’s Department of Chemical Engineering and Applied Chemistry, say the concentration of traffic-related pollutants varies with distance from the road; where significant pollution can be detected up to 250 metres from the road. Continue reading