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 ...

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

An air quality alert is in place for parts of Southern California on Thursday as windblown dust creates hazardous conditions.

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

In the latest "State of the Air" report from the American Lung Association, Cincinnati ranked 14th nationally for worst ...