Off and on through this summer, and especially in the past few days, Milwaukee's air quality measurements have deteriorated ...

Smoke from wildfires blazing across Canada is once again wafting over huge portions of the Midwest and worsening air quality, ...

Chicago was listed as the worst air quality in the world for part of Aug. 1 because of smoke from the fires blowing southeast ...

The Midwest saw some of the worst air quality conditions in the world Thursday, and similar conditions are expected to ...

The smoke is expected to remain over the northern and central Plains of the United States for the next couple of days, ...

Here's what public health officials recommend for people with heart or lung conditions, older adults, children and teens.

However, most of the smoke impacting air quality originates from vast wildfires that have scorched millions of acres in Canada. As a result, air quality is considered unhealthy for those in the ...

Be prepared for hazy conditions and an air quality alert as Canadian wildfire smoke continues to affect the state through ...

Wildfire smoke carries large amounts of particulates and gases. These can act as ozone precursors, causing air to exceed the ...

Iowa will be blanketed by hazy skies for the next few days with the air quality index spiking and causing poor conditions for ...

There is an air quality alert for all of Southeast Michigan until midnight Saturday, the Michigan Department of Environment, ...

The region has been under an Orange Air Quality Alert issued by the National Weather Service since Thursday. This is not the ...