Rachel Chang

Canada Research Chair in Atmospheric Science

Tier 2 - 2017-11-01
Renewed: 2021-04-01
Dalhousie University
Natural Sciences and Engineering Research Council


Coming to Canada From

Harvard University, Cambridge, United States

Research involves

Studying atmospheric particles to determine their effects on visibility and air quality.

Research relevance

This research will lead to improved visibility forecasting in coastal areas, and aid in predicting changes to air quality in Canada’s Arctic.

Research summary

Atmospheric particles-also known as aerosol particles or particulate matter-are microscopic particles of solid or liquid matter suspended in the air. They affect air quality and the Earth’s climate. Dr. Rachel Chang, Canada Research Chair in Atmospheric Science, is studying how the sources of these particles-whether land or water, polluted or clean-affect the formation and intensity of coastal fog.

She and her research team are also examining the chemical composition and sources of particles in the Arctic throughout the year. This is important because as the Arctic summer sea ice melts and industrial activities increase, human-made pollution sources will dominate over natural ones, even in summer. This work will help us better understand how particles affect air quality and climate, and how we can control their effects for the benefit of society.