As Canada grapples with one of its worst wildfire seasons on record, smoke from the blazes have prompted air quality alerts across the U.S.

Air quality alerts are in effect on Tuesday in 10 states as toxic smoke from hundreds of wildfires burning in Canada continues to waft into the United States, creating hazy, gray skies over major ...

Smoke from wildfires in Canada continue to impact air quality in the northern United States, even in the New York City metro area and Hudson Valley.

Breathing in polluted air for extended periods of time can pose a serious health risk for people, especially for vulnerable ...

Spain and Portugal were the worst-affected countries in Europe, which has seen its most destructive wildfire season in nearly ...

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

If you’ve looked outside and noticed a cloud of haze in the air, you’re likely witnessing the impact of the wildfires burning ...

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

Smoke and grit from hundreds of forest fires have spread across large parts of Canada and the northern US, sending air quality to unhealthy levels. Air quality has deteriorated in areas including ...

Something like 500 wildfires continue to burn across Canada, and it's affecting the air we breathe. Earlier this week, the air quality in Toronto was among the worst in the world.

The Canadian wildfire season has started early and already broken records, with toxic smoke drifting south to the U.S. and many air quality alerts in place. If you live in the Northeast U.S., then ...

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