Multiple U.S. states and Canadian provinces are experiencing poor air quality from wildfire smoke. Here's where.

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

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 ...

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

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

Air quality map of city marathon identifies pollution hotspots, helping improve conditions for runners As part of the final ...

The Illinois EPA declared an Air Pollution Action Day in the Chicago metro area. See today's air quality index forecast for Illinois.

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

Florida Gov. Ron DeSantis claims new migrant detention center has “zero” environmental impact. That’s not possible, experts say.

Here's what we know Monday, July 14 about the fast growing Green Fire and suppression efforts in the Shasta-Trinity National ...

Unhealthy air has invaded Minnesota, Wisconsin and North Dakota early this week as a new round of wildfire smoke from Canada ...

A series of live maps from Windy.com highlighted which parts of the U.S. were experiencing elevated levels of air pollution ...