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 ...

"The air quality is officially dangerous in Chicago," says Brian Urbaszewski, director of environmental health programs at ...

The "unhealthy" air, which ranks as level four of six on the Air Quality Index, comes after multiple consecutive days of air quality alerts.

Most of the Chicago area remains under an Air Quality Alert this weekend due to smoke from Canadian wildfires.

National Weather Service officials called an air quality alert in effect until midnight as well as a beach hazard warning.

An air quality alert for the Chicago area was extended for a second time as smoke from Canadian wildfires lingers overhead ...

Illinois residents are urged to reduce pollution levels. The air quality is expected to improve by Saturday, according to the ...

Wildfire smoke drifting across the Great Lakes has caused air quality to plunge to hazardous levels in several states, ...

The National Weather Service issued an air quality alert for the city on Thursday and kept extending it through Sunday night. There was no alert Monday.

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

Smoke from Canadian wildfires settled over Chicago Thursday, with air quality reaching “unhealthy” levels for everyone. Air ...