Dr. Dorothy Curran says fine particles in wildfire smoke especially affect sensitive groups, like kids with asthma or Chronic Obstructive Pulmonary Disease (COPD).

The Wisconsin Department of Natural Resources issued an air quality alert for all of southeast Wisconsin until noon Sunday, ...

Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air.

Most of the Chicago area remains under an Air Quality Alert this weekend due to smoke from Canadian wildfires.

Hazy skies are lingering across Northwest Missouri and Northeast Kansas Saturday, as smoke from wildfires in Canada filters into the region. An Air Quality Alert remains in place for the Kansas City ...

For residents across Minnesota, the past week has been marked by a new, unwelcome normal: a thick, smoky haze hanging over ...

Environment Canada has issued special air quality statements for multiple regions across northeastern Ontario and beyond.

Blazes across several Canadian provinces and territories pose health risks to Canadians and their southern neighbours.

For the full 24 hours of Aug. 3, the New York State Department of Environmental Conservation is issuing an air quality health ...

An air quality advisory has been issued for the Adirondacks for the second weekend in a row as wildfires in Canada continue ...

After some improvement in terms of air quality Friday, conditions were once again expected to worsen in West Michigan by Saturday.

Wildfire smoke from the Prairies has prompted special air-quality statements and warnings across the country Saturday.