Overview
- The National Weather Service issued multi-day air quality alerts Saturday for Los Angeles, Orange, and Riverside counties, with advisories in effect until Monday, Dec. 8 at midnight.
- South Coast AQMD’s mandatory No-Burn rule covers the South Coast Air Basin, prohibiting use of wood, pellet, and manufactured fire logs in indoor and outdoor devices.
- Named areas include the Santa Ana Mountains and foothills, Orange County coast and inland zones, San Bernardino and Riverside County valleys, Riverside County mountains, the San Gorgonio Pass, and numerous Los Angeles County locales.
- Residents are advised to run air conditioners or HEPA purifiers and to avoid devices that pull in outside air such as swamp coolers or whole-house fans when alternatives are available.
- Guidance urges staying indoors when possible, limiting outdoor exertion, avoiding open burning, and reducing pollution-producing activities, with officials noting No-Burn declarations are based on 24-hour PM2.5 forecasts that may not match real-time maps.