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The Southern Ontario Centre for Atmospheric Aerosol Research (SOCAAR) at the University of Toronto is an interdisciplinary centre for the study of air quality, with a focus on how aerosols impact human health and the environment. SOCAAR brings together medical personnel, atmospheric chemists and environmental engineers, and promotes collaborative research through access to state-of-the-art facilities and partnerships with government and industry.

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SOCAAR is also affiliated with The Canadian Aerosol Research Network (CARN), a new initiative formally uniting the collective expertise of leading Canadian aerosol researchers from the University of Toronto, Dalhousie University and the University of British Columbia.

Visit the web sites of affiliated Principal Investigators...

News and Events

Meet Dr Rob Healy, Marie Curie International Outgoing Fellowship awardee. Learn more about his research here.


SOCAAR Director Prof. Greg Evans has received U of T’s highest honour for teaching. Read more about Prof. Evan's teaching and leadership in education here.


Jonathan Wang and fellow SOCAAR researchers published a scientific paper on measuring the air pollutant emissions of vehicles and quantifying the contributions from heavy emitters.
New studies from SOCAAR researchers show vehicle air pollution in Ontario travels 3x farther than originally thought. Click here to watch the Global News coverage.  

Prof. Evans’ spoke about the impacts of atmospheric and aerosol research on health and climate at the 2015 John Adjeleian Lecture. Click here to watch the lecture.

SOCAAR is looking for new graduate students for some exciting thesis projects