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

The Air Quality Index (AQI) is a national system developed by the U.S. Environmental Protection Agency (EPA) to translate various air pollutant concentrations into a single, easy-to-understand number.

Sam Haskell Jr., the son of a prominent television producer, died by suicide just days before his preliminary hearing to ...

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

Particulate matter from wildfire smoke could cause issues for sensitive groups, including elderly people, pregnant people, young children, outdoor workers and those with breathing issues.

Air quality advisories have been issued for parts of Michigan, Illinois, Indiana, Minnesota, New York, Vermont and Colorado on Tuesday.

DETROIT (FOX 2) - An Air Quality Alert is in effect once again today with one major difference. Yesterday's poor air quality was due to smoke from the Canadian wildfires. Today, that's more prevalent ...

An Air Quality Alert is in effect for all of Southeast Michigan and has now been extended through the end of Tuesday.

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

The Illinois Environmental Protection Agency has issued an Air Pollution Action Day for Tuesday, July 15. Here's what to know ...

Expect another smoggy day in metro Detroit. The Southeast Michigan Council of Governments (SEMCOG) has declared its eighth Air Quality Advisory of the season for Tuesday, July 15, citing elevated ...

The Vermont Department of Environmental Conservation has issued an air quality alert for Tuesday. The alert has been issued ...