What the AQI communicates
The U.S. Air Quality Index converts measured pollution levels into categories that communicate potential health concern. AirNow provides current and forecast AQI information for many U.S. locations.
Adjust activity when air is poor
People can reduce exposure by moving strenuous outdoor activity to a better time, choosing indoor alternatives, keeping windows closed during severe smoke events when appropriate, and following local public-health guidance.
Indoor filtration during smoke events
Portable air cleaners and correctly fitted HVAC filters can reduce indoor particle concentrations when chosen for the room and used correctly. They do not remove all pollutants.
Higher-risk individuals
People with diagnosed heart or lung disease should follow their clinician’s action plan and public-health recommendations. Sudden or severe symptoms require medical attention.
References & further reading
- AirNow — U.S. Air Quality Index — current air-quality information
- EPA — Air Cleaners and Air Filters in the Home — home air-cleaner guidance