Air quality & wildfire smoke in the United States

Fine-particle (PM2.5) air quality by region, modelled from Copernicus atmosphere data via Open-Meteo. During fires this reflects smoke drift.

Air-quality data is not available right now.

⚠️ The fires shown are automatic satellite heat detections from NASA FIRMS, augmented with official NIFC / WFIGS incidents where available. Satellite detections are not verified on the ground and are not 100% accurate — they can include false alarms (industrial heat, prescribed burns) or miss small or cloud-covered fires. Do not use this map for safety decisions; always follow official sources.