The EPA's Air Quality Index can tell you whether breathing outside air can be harmful. Here's how to read the scale to plan ...

Milwaukee, Ozaukee, Racine, Kenosha and Sheboygan are all under a poor air quality alert from noon to 11 p.m., according to ...

The Mid-Ohio Regional Planning Commission issued an air quality alert July 15, 2025, for central Ohio, including Columbus, ...

An air quality alert was issued by the National Weather Service in Green Bay at 11:55 a.m. on Tuesday, July 15.

The Chicago area recorded ozone levels of 156 late Monday afternoon. Levels above 100 are considered unhealthy. Residents ...

COLUMBUS, Ohio — Columbus is under an Air Quality Alert Tuesday due to elevated ozone levels. Mid-Ohio Regional Planning ...

Canada had some of the worst air quality in North America on Tuesday morning according to waqi.info, the website for the ...

Canadian wildfire smoke lingers in Michigan. Officials issued an air quality advisory in southeast Michigan for July 15.

Summer camps and daycares are being forced to shift their plans amid stifling heat and poor air quality caused by wildfire ...

The Department of Environmental Conservation (DEC) issued an air quality alert for north and central Vermont for Tuesday, ...

With wildfire smoke in the forecast, track the drop in air quality across dozens of PurpleAir sensors with our live, updating ...

Wildfire season is upon us, and smoke is reducing air quality through swaths of the country. Environment Canada suggests ...