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 ...

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

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

MAINE, USA — Air quality reached "unhealthy" levels on Sunday as a dense plume of Canadian wildfire smoke drifted across much of northern and western Maine.

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 Maine Department of Environmental Protection has issued an Air Quality Alert for Northern Maine Tuesday due to elevated levels of particle pollution due to wildfire smoke from Canada.

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

Forecasters say weak winds have left Canadian wildfire smoke to linger over the U.S. Stronger winds are expected to bring relief later in the week.