Iowans — especially those with heart and lung disease — should avoid long or intense activities and take extra breaks during strenuous activity outdoors in areas where air quality is rated unhealthy.

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

Canada is having another bad wildfire season, and more than 27,000 people in three provinces have been forced to evacuate.

Mother Nature’s gift of ample rain helping to reduce drought map’s grip in High Plains, according to the U.S. Drought Monitor ...

The Chicago area is under an air quality alert until due to the Canadian wildfire smoke. Environmental officials said the pollutants from the smoke will be sticking around the area through at least ...

Air quality alerts advising people to stay indoors were issued earlier in the week and lasted through part of Wednesday ...