Predicting smoke from wildfires, as opposed to standard urban pollution from human activity, is a lot more complicated, ...

Air quality is expected to improve over the weekend, but temperatures are forecasted to feel as sticky as 40 with humidity.

Most of the province remains under air quality statements due to wildfire smoke from northern Ontario and the Prairies.

When wildfire smoke fills the sky, air quality drops. Try to stay indoors or wear a well-fitted and properly worn, respirator-type mask (such as a NIOSH-certified N95 or equivalent respirator) if ...

An air quality warning is in effect as smoke from wildfires in Manitoba and Saskatchewan blankets much of Nunavut’s Kivalliq ...

When wildfire smoke is present, the filtering is even stronger, and you can get a deep red or even a blood-orange sky. It can also look apocalyptic, if the smoke is especially thick.

Ever wonder why the sky is blue on a clear day, but red when there are pollutants such as smoke in the air? Wildfire smoke fills the air with tiny particles. The particles, such as soot, ash, and ...