The advisories impact large areas of Idaho, Oregon, Montana and Washington, lasting through the end of January.

In the wake of the Palisades and Eaton fires, concerns about air quality across the county have been on the rise.

An air quality alert was issued on Tuesday at 5:03 a.m. for Josephine County.

The Oregon Department of Environmental Quality issued an air quality advisory for Eastern Lane, Eastern Linn, Eastern Marion, ...

The Inland Northwest is stuck under a ridge of high-pressure and will stay under this ridge for the next several days.

Weather conditions are trapping smoke and other air pollutants near the ground where people breathe, officials said.

If you have been hearing about poor air quality in New York City Friday, you can breathe a deep sigh of relief (literally): ...

Toxic smoke and dangerous particulate pollution are spreading far beyond the flames, leaving air quality at unhealthy levels ...

With calm winds, smoggy conditions, and low mixing height contributing to the pollution surge, Delhi’s 24-hour average AQI ...

On Wednesday at 3:18 p.m. an updated air quality alert was issued valid until Thursday at 6 p.m. The alert is for Ventura ...

Even with thick smoke coming from the Hughes Fire, skies have been clear in many areas, and the air quality forecast has been ...