The U.S. Environmental Protection Agency warns that wildfire smoke contains dangerous pollutants in the form of fine ...

Smoke from Canadian wildfires worsened air quality in the eastern U.S. on Wednesday as several Midwestern states battled ...

Residents in northern Illinois will experience degraded air quality today as rain brings Canadian wildfire smoke south. Find out the AQI in your area.

Smoke from Canadian wildfires carried another day of poor air quality south of the border to the Midwest, where conditions in ...