Smoke from Canadian wildfires hovered over several Midwestern over the weekend, bringing warnings of unhealthy air for at ...

The festival kicked off Thursday, when Chicago had the worst air quality in the world for a few hours. But haze didn't choke ...

Smoke and grit from hundreds of forest fires have spread across large parts of Canada and the northern US, sending air quality across the Midwest and northeast US and Toronto to unhealthy levels.

The smoky air is predicted to reach New York City on Monday, and it could bring unhealthy air quality for sensitive groups.

Health officials from Minnesota to Maine have issued alerts warning of poor air quality from wildfires burning in Canada.

Minneapolis faced hazardous air quality, ranking second-worst globally due to Canadian wildfire smoke. Air quality alerts ...

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

Smoke from raging wildfires in Canada is causing air quality alerts to blanket the Midwest. Lissette Nuñez is live from Chicago's Lollapalooza music festival.

Smoke from Canadian wildfires has plunged Midwest air quality to unhealthy “red” levels, with Minneapolis among the world’s ...

Chicago's Air Quality Alert continues due to Canadian wildfire smoke, with health advisories for sensitive groups amidst ...

Chicago had the worst air quality in the world for a few hours Thursday, thanks to smoke from Canadian wildfires.