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 ...

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

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

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

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

Air quality will deteriorate across 12 states through Saturday, mainly in the Upper Midwest, as wildfire smoke pours into the ...

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

Why is the air quality bad right now? Smoke from wildfires spreads to the Midwest, Northeast and southern California in the U ...

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 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 ...

Officials have issued an air quality alert for around 10 million Americans, telling them to minimize outdoor activities and ...