Wildfire smoke covered the Chicago area Thursday, leading to unhealthy air quality and a wave of haze, but where did it come ...

Concern for poor air quality in the greater Chicago area remains as the Illinois EPA extends its alert until Thursday night.

While an air quality alert continues for parts of the Midwest due to smoke from Canadian wildfires, northeastern Illinois was ...

Smoke from Canadian wildfires continues to affect air quality across the Midwest, though Monday’s conditions were an ...

An Illinois Air Pollution Action Day is declared when weather conditions are such that widespread ozone and or particulate ...

Smoke from Canadian wildfires is once again impacting air quality in the Chicago area, with air quality index readings ...

An Illinois “Air Pollution Action Day” is declared when weather conditions are such that widespread ozone and or particulate ...

Wildfire smoke has pushed Chicago's air quality into the "unhealthy" zone. It's so bad, in fact, that we're the most polluted ...

CHICAGO The Illinois Environmental Protection Agency (Illinois EPA) and the Illinois Department of Public Health (IDPH) are ...

SPRINGFIELD Illinois Environmental Protection Agency Acting Director James Jennings is announcing the Agency’s participation ...

West-central Illinois is under a "moderate" air quality rating as smoke from Canadian wildfires drifts down into the Midwest.