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, weather officials said.

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

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 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.

The 'unhealthy for sensitive groups' air quality in Chicago comes as an air quality alert was issued for the entire state of Wisconsin.

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 ...

An Air Pollution Action Day is in effect Tuesday for much of the Chicago area, with AQI levels at 137 — unhealthy for sensitive groups. Health officials urge at-risk groups to limit outdoor ...

Douglas McIntyre, Editor-in-Chief at Climate Crisis 24/7, reveals that living in Chicago is equivalent to smoking 139 cigarettes annually due to air pollution. Despite its lakeside location and ...

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 ...