Metropolitan Washington
 
  • AQI Loop
  • AQI
  • Ozone AQI
  • PM AQI
AQI Animation - http://www.epa.gov/airnow/2011/20110608/anim_aqi_washington_dc.gif
Peak AQI - http://www.epa.gov/airnow/2011/20110608/peak_aqi_washington_dc.jpg
Peak Ozone (8-hour) - http://www.epa.gov/airnow/2011/20110608/peak_o3_washington_dc.jpg
Peak Particles PM<sub>2.5</sub> (24-hour) - http://www.epa.gov/airnow/2011/20110608/peak_pm25_washington_dc.jpg
 
AQI: Good (0 - 50) AQI: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action DayAction Day
 
Local Air Quality Resources
Action Day Programs | Forecast
 
State Air Quality Resources
American Lung Association (ALA) of the District of Columbia
District Department of the Environment
District Dept. of the Environment - Contacts
District of Columbia - Emergency Management Agency - Air Quality Indexes
Metropolitan Washington Council of Governments - Air Quality Information
Daily AQI
Wednesday, June 08, 2011
Particles PM2.5
84 
Moderate
Particles PM10 Not Available
Ozone
150 
Unhealthy for Sensitive Groups
select another date to see data and maps:
Note: data are available beginning August 1, 2010.

Other Information
Current Conditions and Forecasts
Air Quality Maps Archives (by region)