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

An air quality alert in the Chicago area has been extended for another day as Canadian wildfire smoke continues to plague the ...

I’ll tell ya, it’s about time we see some green pop up on our air quality map! That means the Air Quality Index (AQI) has ...

The poor air quality continues to prevail in Illinois as Canadian wildfire smoke migrates south into the U.S. As a result, ...

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 ...

Air quality alerts issued Thursday in Illinois because of Canadian wildfire smoke marked the latest bout in an increasingly ...

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

The air quality index (AQI) dropped below 100 overnight, meaning the air quality is now “unhealthy for some” across a good portion of northern Illinois. Those with heart and lung ...

Due to smoke from wildfires, several U.S. cities had an AQI over 100 on Aug. 5, which means the air is unhealthy for ...

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

Air quality alerts remain in effect from Minnesota to the Northeast due to smoke from hundreds of wildfires in Canada. In the West, wildfires in California continue to rage.