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.

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

Minnesota is experiencing its longest air quality alert on record — seven days. The alert will remain in effect until noon on ...

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

Wisconsin Public Radio Unhealthy air is blanketing Wisconsin as smoke spreads from wildfires burning in Canada. As of ...

The amount of area burned by wildfires nationally this year is equivalent to a size bigger than the Greater Toronto Area (GTA ...

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