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

Despite Tuesday’s green map from the South Coast Air Quality Management District, showing air quality in Los Angeles County ...

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

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

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

Hazardous air quality can affect people's health in multiple ways, ranging from headaches and eye irritation to trouble breathing and even heart failure. Here's how to tell if you're in an area at ...

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

Already known for having some of the worst air quality in the U.S., people in the area are now also at risk of inhaling smoke that contains harmful chemicals and byproducts that may cause long ...

Despite the green map from the South Coast Air Quality Management District showing the air quality reading in Los Angeles County being “good,” people should continue taking precautions ...