Air quality varies based on the type of pollutants in the cycle and can have dramatic ramifications for those breathing ...

Canadian wildfire smoke is impacting the air quality in northern Ohio. AirNow, part of the Environmental Protection Agency, has issued an air quality alert for most of northern Ohio. The Air Quality ...

It wasn’t that long ago that few people were monitoring the air—not the government, not its citizens. Today, weather apps provide estimates of outdoor air quality, and the government’s own air quality ...

Smoke from Canadian wildfires is once again impacting air quality in the Chicago area, with air quality index readings Thursday morning in the "unhealthy" category for some suburbs, according to ...

Columbus' air quality worsened due to Canadian wildfire smoke drifting over the city, turning the air unhealthy for sensitive groups, according to AirNow.gov. The city's air quality index (AQI) score ...

Hazy skies in the Phoenix area were caused by overnight wind gusts lofting dust particles. Stagnant weather conditions contributed to a high pollution advisory for Maricopa County. Phoenix's poor air ...

The National Weather Service reported an air quality alert at 9 a.m. on Monday in effect until 7 p.m. for Allegheny County.

Smoke from Canadian wildfires is causing air quality concerns and hazy skies for many Americans in the Midwest and Northeast for another day this week. A map of the current Air Quality Index, the ...

University of Vermont buildings and others are seen through haze in a view from the beltline in Burlington on Tuesday, July 15. Photo by Glenn Russell/VTDigger A wafting trail of Canadian wildfire ...

Another air quality advisory is in effect across Milwaukee on Tuesday, July 15. Milwaukee, Ozaukee, Racine, Kenosha and Sheboygan counties are all under a poor air quality alert from noon to 11 p.m., ...