Air quality across parts of California is deteriorating to hazardous levels as strong winds drive rapid wildfire spread and stir up heavy dust.

Parts of Southern California have been issued air quality ... advisory has been issued for nearly the entire South Coast Air Basin which is home to more than 17 million people.

The South Coast Air Basin includes Orange County ... A South Coast AQMD map illustrates which parts of Southern California were under a No-Burn Day alert this weekend. A South Coast AQMD map ...

As wind and fire conditions change rapidly, zoom in and out on the interactive map below to see where air quality is worst around Southern California. You can also open the map in a new window here.

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 ...

As wind and fire conditions change rapidly, zoom in and out on the interactive map below to see where air quality is worst around Southern California and the U.S. You can also open the map in a ...

The South Coast Air ... Basin. No-Burn Days are based on fine particle pollution levels that are forecasted for an entire 24-hour period, which may not be reflected in real- time air quality maps.