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

Wildfire smoke from Canada's Prairie provinces has triggered widespread air-quality warnings across the country, impacting ...

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

Environment Canada has issued an air quality statement for Montreal today due to smoke from wildfires in the Prairies.

For the full 24 hours of Aug. 3, the New York State Department of Environmental Conservation is issuing an air quality health ...

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.

When wildfires burn, the smoke can travel long distances and degrade air quality far away, which presents risks for those ...

Air quality will deteriorate across 12 states through Saturday, mainly in the Upper Midwest, as wildfire smoke pours into the ...

Smoke from Canadian wildfires continues to choke the skies over the Upper Midwest this weekend, with the milky haze even ...