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U.S. Air Quality Summary (text)
 
Northern Virginia
 
  • AQI Animation
  • AQI Peak
  • Ozone Peak
  • Particles Peak
AQI Animation - http://www.epa.gov/airnow/2013/20130111/anim_aqi_va_wv_md_de_dc.gif
 
Legend: National Parks/Monuments National Parks/Monuments
Peak AQI - http://www.epa.gov/airnow/2013/20130111/peak_aqi_va_wv_md_de_dc.jpg
 
Legend: National Parks/Monuments National Parks/Monuments
Peak Ozone (8-hour) - http://www.epa.gov/airnow/2013/20130111/peak_o3_va_wv_md_de_dc.jpg
 
Legend: National Parks/Monuments National Parks/Monuments
Peak Particles PM<sub>2.5</sub> (24-hour) - http://www.epa.gov/airnow/2013/20130111/peak_pm25_va_wv_md_de_dc.jpg
 
Legend: National Parks/Monuments National Parks/Monuments
 
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
AQI Forecasts and Current Data | Ozone Action Day Programs
 
State Air Quality Resources
American Lung Association (ALA) of Virginia
Virginia DEQ - Air Quality
Virginia DEQ - Air Quality Data
Virginia DEQ - Contact Us
Virginia Department of Environmental Quality (DEQ)
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Daily Peaks
Friday, January 11, 2013
Particles PM2.5
49 
Good
Particles PM10
13 
Good
Ozone
14 
Good
select another date to see peak data and maps:
Note: peak data are available beginning August 1, 2010.

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