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

Unlike typical wildfires, smoke from the L.A. fires — consisting of toxic materials from burned down homes, cars, and more — ...

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

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

The Air Quality Index (AQI) can tell you a lot about the health of the environment, but there are still measures you can take ...

Air quality in wildfire-stricken Los Angeles improved on Thursday from hazardous peaks hit earlier this month, as tiny soot ...

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

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

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

Los Angeles is now a week removed from the day that multiple devastating wildfires erupted to torch tens of thousands of ...

Storyline: Wildfires in the Los Angeles area of Southern California have forced residents to remain indoors due to hazardous ...

Smoke from the raging Southern California wildfires is filling city skylines, causing officials to warn residents of poor air quality.