Wildfire smoke was helping raise ozone to hazardous levels. No alerts have been issued, but the air quality may approach ...

Wildfires scorching several Canadian provinces have driven at least 33,400 people from their homes, with smoke now reaching ...

The pull of the foul air to Northern California was significant enough that the Bay Area Air District issued an air quality ...

An air quality index of 300 or higher is considered hazardous, and the record-breaking smoke AQI in Grand Portage reached 800 ...

Mississippi can expect hazy skies, lower air quality when double whammy of Saharan dust and smoke from wildfires in Canada ...

Wildfire smoke from blazes burning in the Canadian prairie has drifted across New York and Chicago, contributing to ...

Online resources help you make sense of the hazy skies and poor air quality you might be experiencing as a result of fires to ...

The smell of fire filled the air as thick smoke from wildfires in Canada blanketed part of the Midwest and created hazardous ...

Smoke from raging wildfires in Canada is worsening air quality in some U.S. states. But will Greater Cincinnati be affected?

States across the border issued air advisories about particulate pollution that are expected to last for several days.

Smoke from wildfires in Canada is making it harder to breathe in Ohio and several other states. Here's how long it will last ...

According to forecasters at AccuWeather, cities where smoke is expected to become thick enough to be noticeable include Fargo ...