#2 Regina, Saskatchewan
Regina, the capital city of Saskatchewan, is located on the prairies in the centre of North America. This city’s air pollution was 25 micrograms of PM10 per cubic metre, also exceeding the WHO’s recommended maximum level of 20. In 2008, the city had a PM10 of 9, marking an increase of 177 percent. Due to the Fort McMurray fires, portions of western Saskatchewan are now also experiencing poor air quality measurements.
#1 Courtenay, British Columbia
Courtenay, a city of approximately 24,000, is located along the central east coast of Vancouver Island in the Comox Valley, British Columbia. The air pollution in this city was 30 micrograms of PM10 per cubic metre, exceeding the WHO’s recommended maximum level of 20. Individuals with lung or heart disease should consult Environment Canada’s Air Quality Health Index before taking up physical activities on days of increased air pollution.