Air quality alerts have been issued across most of the Midwest, and hundreds of wildfires are burning across Canada.

The hazy skies in the Chicago area are the visible sign of the poor air quality Thursday as smoke from Canadian wildfires ...

Wildfire smoke from Canada turned Chicago into one of the world’s most polluted metro areas as the Lollapalooza music ...

Wildfire smoke drifting across the Great Lakes has caused air quality to plunge to hazardous levels in several states, ...

Chicago air quality remains in the top five worst in the world Friday with an Air Quality Alert in place from Canadian ...

Smoke from the more than 700 wildfires burning in Canada is continuing to blanket parts of the Midwest for a final day.

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

"The air quality is officially dangerous in Chicago," says Brian Urbaszewski, director of environmental health programs at ...

While we’ll see plenty of sunshine and beautiful temperatures on Sunday, a layer of haze will linger across Chicagoland as an ...

The National Weather Service has opted to extend an air quality alert in the Chicago area for another day.

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

Wildfire smoke covered the Chicago area Thursday, leading to unhealthy air quality and a wave of haze, but where did it come ...