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 ...

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

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

Chicago's skyline has been shrouded in mystery as conflicting reports of toxic air chemicals swirl, leaving residents ...

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 ...

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

The metro area ranked 15th overall for levels of smog, according to a new analysis from the American Lung Association.