Wildfire smoke will continue to spread into Minnesota on Thursday, with an air quality alert in effect until 11 p.m. Friday ...

An air quality alert was issued by the National Weather Service in Green Bay at 1:52 p.m. on Wednesday, July 23.

It's due to a heavy band of smoke from wildfires in Canada moving in across the state starting on Wednesday for the northwest ...

Air quality returns to safe levels in Deer Park after a chemical odor incident, though the source remains unidentified.

A UCLA-led research team has completed installation of 20 air quality monitoring stations across western Los Angeles County ...