CHICAGO (WLS) -- An air quality alert was issued by the National Weather Service for the Chicago area. Chopper 7 captured as ...

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

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

The Indiana Department of Environmental Management said Northwest Indiana’s ozone levels are expected to be unhealthy for ...

CHICAGO - Today is warm with an air quality alert in effect. Sensitive groups should take it easy again as we have elevated ozone levels close to the ground. Highs will be around 90 this afternoon.

It’s a warm and hazy day across Chicagoland with an air quality alert in effect for sensitive groups. Serafini will remain in ...

Pollen and Air Quality forecast for West Chicago, IL with air quality index, pollutants, pollen count and pollution map from Weather Underground.

Chicago's air quality alert continues due to Canadian wildfires, affecting sensitive groups and prompting health advisories.

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

The alert comes as humidity is expected to increase Tuesday, with high temperatures in the mid 80s to low 90s, with heat indices reaching 100 by Wednesday.