District of Columbia Air Quality
Real-time AQI data and air quality trends for 1 cities across District of Columbia.
Statewide Air Quality Overview
45
Average AQI
124
Good Air Days
57
Moderate Days
Unhealthy Days
101
Highest AQI
Based on 2025 EPA data
Learn About Air Quality
What Is the AQI?
Understand how the Air Quality Index is calculated and what each level means for your health.
Pollutant Guide
Learn about PM2.5, ozone, and other pollutants that affect air quality across District of Columbia.
National Rankings
Compare District of Columbia cities to the rest of the US by air quality grade and median AQI.