Overview
- Los Angeles County remains under a National Weather Service air quality alert until midnight Monday, Dec. 1.
- Orange County, the San Bernardino and Riverside County Valleys, the Riverside County Mountains, and the San Gorgonio Pass near Banning are under an alert until 7:45 a.m. Monday, Dec. 1.
- The South Coast Air Quality Management District has extended a mandatory No-Burn declaration for the South Coast Air Basin, prohibiting wood, pellet, and manufactured fire logs in indoor and outdoor devices.
- The NWS listed affected Los Angeles areas including Calabasas/Agoura Hills, the San Fernando and San Gabriel valleys, the Santa Clarita Valley, Malibu, the Palos Verdes Peninsula, and nearby coastal and mountain zones.
- Officials warned that smoke particles can trigger asthma attacks and increase ER visits, advised running air conditioners or HEPA purifiers and avoiding swamp coolers or whole-house fans, and noted No-Burn Days are based on 24-hour forecasts that may not match real-time air quality maps.