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

The map pulls data from air monitors, hundreds of pollution sensors, and forecast models to provide real-time air quality index (AQI) readings for more than 1,000 locations. Los Angeles’ air ...

South Coast AQMD—the air pollution control agency for all of Orange County and the urban portions of Los Angeles, Riverside and San Bernardino counties—covers an area of 10,743 square miles that is ...

Researchers at the University of Southern California have released an interactive map to show Angelenos how ... than two-thirds of cancer risk from air pollution in the Los Angeles basin ...

Poor air quality has been detected in multiple states surrounding California ... (NWS), exposure to particle pollution may trigger asthma attacks, respiratory infections, and cardiovascular ...

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 ...

According to the map, the 10 ZIP codes with highest exposure are concentrated near the ports and along the 110, 710, and 605 ...

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

An air quality alert was issued on Friday at 12:07 p.m. in effect until Sunday at midnight. The alert is for Calabasas and ...