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

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 ...

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

As hazardous chemicals pollute the air after devastating wildfires, officials call for increased monitoring to protect ...

Specialized air quality instruments captured a spike in lead, chlorine, and bromine pollution during the L.A. wildfires.

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

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

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

Los Angeles. "They don't have the spatial density or indeed sometimes the temporal density to tell us what's really happening on the kind of localized level that really matters to people," he says.

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.

As the wildfires raged and smoke billowed across Los Angeles, officials issued air quality alerts, schools canceled classes and scientists warned about the dangerous - even fatal - consequences of ...