The city is racing to put up 277 sensors. Once installed, Chicago will have the most high-quality air monitors in the country ...

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

You can find tips for lowering pollution levels here. On July 31, Canadian wildfire smoke brought the worst air quality in the world to Chicago.

"The air quality is officially dangerous in Chicago," says Brian Urbaszewski, director of environmental health programs at the Respiratory Health Association. "It's going to send people to the ...

Chicago’s air quality was among the worst in the world Thursday afternoon, according to IQAir. The air quality in Chicago around 4:30 p.m. Thursday was the second worst in the world, behind ...

The National Weather Service extended an air quality alert for Chicago through Sunday night. By NBC Chicago Staff • Published August 2, 2025 • Updated on August 2, 2025 at 2:33 pm ...

Chief at Climate Crisis 24/7, reports on alarming air quality levels across North America, as visualized by AirNow’s real-time pollution map. Cities like Detroit, Chicago, Indianapolis, and regions ...

Chicago experienced the worst air quality in the world on Thursday due to smoke from Canadian wildfires, which can trigger asthma attacks, strokes, and heart attacks, and people are advised to use … ...

Air quality alert remains for Chicago area with a beach hazard warning Friday ... The skyline is muted by Canadian wildfire smoke east of the Eisenhower Expressway, July 31, 2025, in Chicago.

Air quality has taken a serious hit across the United States as a two-fold blow of wildfires in the West and in Canada have ...

The air quality in Chicago around 4:30 p.m. Thursday was the second worst in the world, behind Kinshasa, the capital of the Democratic Republic of Congo, according to IQAir’s live ranking.