“Air quality and visibility due to wildfire smoke can fluctuate over short distances and can vary considerably from hour to ...

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

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

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

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

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.

Wildfire smoke from Canada is blanketing the skies in the Midwest, leaving millions with dangerous breathing conditions.

Every air quality monitor in Minnesota is reporting red or unhealthy conditions for everyone, an official said.

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

Smoke from Canadian wildfires prompted a special air‑quality statement for Toronto and warnings nationwide, urging residents to limit outdoor time amid poor air and hazy skies.

The elevated levels of fine particulate matter resulting from wildfire smoke could present significant health risks.

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