• Air Quality Alert - Check Before You Burn Alert South Coast AQMD has declared a residential No-Burn Day alert effective on Thursday, January 22, 2026 from midnight through 11:59 PM for all those living in the South Coast Air Basin, which includes Orange County and non-desert portions of Los Angeles, Riverside, and San Bernardino counties. Visit our Check Before You Burn Map or our Check Before You Burn Page for more information.
  • View South Coast AQMD’s Community Air Monitoring stations near refineries
  • Wildfire Smoke, Ash & Safety Tips Wildfires can often cause very high air pollution levels that are harmful to your health. Protect your health by taking steps Before, During, and After a wildfire to reduce how much pollution you are breathing. Visit our Wildfire Smoke & Ash Health & Safety Tips page for more info.

South Coast Air Quality Management District

21865 Copley Dr, Diamond Bar, CA 91765

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