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

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.

An air quality statement is in effect for Toronto and the surrounding region as wildfire smoke continues to drift south, ...

"Breathing in the Canadian wildfires smoke cannot be the new normal," said Candice Miller, Macomb County public works ...

Folks should exercise caution and limit time outdoors this weekend. Consider reducing or rescheduling outdoor sports, ...

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

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, ...

The Air Quality Index (AQI), a system used to communicate how much pollution is in the air, is expected to reach the red or ...

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.

The Iowa Department of Natural Resources reported Friday that air quality in Iowa will be at levels “unhealthy for sensitive ...

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