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

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’t breathe a ...

Wildfires are tearing through thousands of acres in Los Angeles County in California, as strong Santa Ana winds stoke the ...

Already known for having some of the worst air quality in the U.S., people in Southern California are now also at risk of ...

Smoke from the wildfires can wreak havoc on your health. Here are tips to stay safe.

Some studies have indicated that young children, especially those under the age of 4, are at particular risk because their ...

AirNow is a collaborative effort of federal agencies that provides air quality data across the U.S. The site also has ...