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 Milwaukee-Sullivan at 9:26 a.m. on Wednesday, July 16.

Expect another smoggy day in metro Detroit. The Southeast Michigan Council of Governments (SEMCOG) has declared its eighth ...

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

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

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

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

Columbus is under an Air Quality Alert Tuesday due to elevated ozone levels.Mid-Ohio Regional Planning Commission (MORPC) issued the alert Tuesday afternoon, warning that air pollution levels are ...

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

Sensitive groups are advised to stay indoors and limit outdoor activities as pollution and ozone levels spike to unhealthy ...