Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.

Millions of people across the Upper Midwest and the Northeast are under air quality alerts Monday, as smoke from wildfires in ...

After a hazy end to the weekend, wildfire smoke will continue to pass through Maine in moderate to high amounts today.

Hazy conditions will continue on Tuesday across Massachusetts, as the smoke from the Canadian wildfires continues to move ...

Viewers shared snapshots of hazy skies as Canadian wildfire smoke continues to impact air quality in parts of Maine.

Smoke from hundreds of wildfires in Canada is lingering over the northern U.S., spreading across to roughly a dozen states ...

Canadian wildfire smoke made the air quality "unhealthy" in northern Maine and "unhealthy for sensitive groups" in western ...

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

The worst air quality in recent years occurred in June 2023, when the smoke became so thick it created an orange haze over ...

PHILADELPHIA (WPVI) -- Smoke particles from Canadian wildfires are causing air quality concerns in the Philadelphia region on ...

AUGUSTA, Maine (WABI) - The Maine Department of Environmental Quality has issued an Air Quality Alert for Tuesday, July 18. The department says particle pollution concentrations are expected to ...