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

Port Chicago Weekend marking a dark chapter in U.S. history. Interview with 2 men about the deadly 1944 explosion, the injustice against surviving sailors, and the weekend of events happening across ...

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.

As smoke from Canadian wildfires worsens air quality in Illinois, Dr. Brady Scott from Rush University explains how it ...

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

Today is warm with an air quality alert in effect. Sensitive groups should take it easy again as we have elevated ozone ...

Wildfire smoke degrades air quality in swaths of Ontario, with Toronto ranking among the worst in the world on Monday.

An air quality alert in the Chicago area will stretch into a third day as pollutants continue to linger in the air at high ...

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