Alerts

Air Quality Alert - Windblown Dust and Ash Advisory Strong Santa Ana winds will cause high particle pollution levels due to windblown dust and ash levels in parts of the South Coast Air Basin and Coachella Valley
Air Quality Index maps do not account for wildfire ash. If AQI levels are high, you smell smoke, or if you see ash in the air, take precautions to protect your health.
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

909-396-2000