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

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

Besides temperatures feeling in the high 90s, Chicago and surrounding areas are under an air quality alert until midnight, ...

An air quality alert was in effect for the Chicago area and northwest Indiana Tuesday as poor air quality from unhealthy, elevated ozone and lingering wildfire smoke continues. According to the ...

The alert comes as humidity is expected to increase Tuesday, with high temperatures in the mid 80s to low 90s, with heat ...

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

The Illinois Environmental Protection Agency issued an air pollution “action day” for the Chicago area that is in effect until midnight Friday due to elevated particle pollution.

An air quality alert remained in effect for the entire Chicago area Friday, with another "Air Pollution Action Day" alert declared as wildfire smoke from Canadian wildfires continues to impact ...

Alden Larsen reads a book on the lakefront near Diversey Harbor on on June 5, 2025, as the skyline is obscured by air pollution from Canadian wildfires. (Eileen T. Meslar/Chicago Tribune) ...

AQI scale explained Here's a breakdown of the EPA's AQI scale for those who are unaware: Good (0 to 50): Air quality is satisfactory, and air pollution poses little or no risk. Moderate (51 to 100 ...

Experts say rolling back power plant emissions will harm Chicago air quality As the Environmental Protection Agency seeks to revoke a key rule setting limits on the amount of carbon dioxide ...

Chicago's air quality ranked among worst in the world due to Canadian wildfire smoke Another large fire exacerbated by climate change is threatening the health of Chicagoans. Government officials ...