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

Tens of thousands of people have evacuated their homes and at least two have died in raging fires sweeping across Los Angeles County ... According to nationwide Air Quality Index data maintained ...

It includes most of Los Angeles, Orange and Riverside counties in the South Coast Air Basin and the Coachella Valley. Blowing dust may result in air quality index levels that are unhealthy for ...

On Sunday at 11:55 a.m. an updated air quality alert was issued in effect until Monday at noon. The alert is for San ...

the air quality index (AQI) in the Los Angeles area is listed as "Unhealthy" measuring at 188 PM2.5. The site's recommendation for this AQI level is to minimize outdoor activity, especially if you ...

Dust and ash left behind from the wildfires across Southern California can be irritating and hazardous when inhaled.

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.

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

Jan 16 (Reuters) - Air quality in wildfire-stricken Los Angeles improved on Thursday from hazardous peaks hit earlier this month, as tiny soot particles that can penetrate the lungs and brain ...

Athena Cheris, asst. life+arts editor, explains why the AQI index may not tell the whole story of air quality in Los Angeles.

Portland’s air quality is currently comparable to Los Angeles, despite the ongoing wildfires in Southern California.