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

After the AQI in the national capital showed improvement, the CAQM decided to lift the restrictions imposed under Grap ...

As the Air Quality Index (AQI) in the national capital shows improvement, the Commission for Air Quality Management (CAQM) ...

Learn what the air quality index (AQI) means, how it impacts your health, and how to stay safe when pollution is high.

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

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

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

All implementing agencies have been requested to maintain strict vigilance and intensify steps of the extant schedule of GRAP ...

Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily more accurate.

The air has improved in the LA region as firefighters get blazes under control, but there are questions about how safe the ...

Oregon DEQ issues air quality advisory for several counties due to air stagnation trapping smoke and pollutants.

Angelenos still bothered by the smell of smoke may be surprised to see that Air Quality Index numbers returned to “healthy” or “moderate” levels this week in L.A. County, but they shouldn ...