Not everyone was reporting the dangerous air quality levels, though. The Environmental Protection Agency’s AirNow is a go-to ...

Users across Chicago were met with warnings from their smartphones about the city's air quality Wednesday that led to much ...

A hazardous cloud of toxic air has engulfed a major US city, reportedly causing an emergency alert for toxic chemicals, with ...

Various popular weather apps across Chicago showed that the air was unsafe to breathe early Wednesday morning, prompting ...

The American Lung Association said they hope the report helps convince Illinois lawmakers to take action to improve air ...

Good afternoon, Chicago. Readings from several popular weather apps had people across the Chicago area spending much of yesterday wondering whether their air was safe to breathe — until the ...

Several U.S. cities are experiencing heightened air pollution levels on Wednesday, including parts of Chicago.

Kristina Hamilton, Director of Advocacy for the American Lung Association in Illinois, joins Lisa Dent to discuss Chicago’s ...

And not only did the air quality in the Chicago metropolitan area receive a failing grade for unhealthy levels of ozone and particle pollution, but so did 23 counties (where data was available ...

Man-made air pollution is decreasing, but overall air pollution is worse due in part of wildfire smoke, according to a new ...

Google’s air quality map showed that Chicago had the worst air in the country. According to Apple’s weather app, too, the Air Quality Index had climbed into the 400s. The reading was so ...