Explore Air
Washington, D.C.
View from the Netherlands Carillon Looking East  
updated 11/07/2009 03:30 PM EST •   
Visual range is approximately 77 miles
View from the Netherlands Carillon Looking East, Washington, D.C.
Current Ozone at McMillan Reservoir
as of 11/07/2009 03:00 PM EST •     
 Ozone
        
Current 1-hour average concentration
 37 ppb
Current 8-hour average concentration
 18 ppb
Good Moderate Unhealthy for Sensitive Groups Unhealthy Very
Unhealthy
0 60 76 96 116 ppb
 
Current Particulate Matter at McMillan Reservoir
as of 11/07/2009 03:00 PM EST •     
 Particulate Matter
       Details   
Current 1-hour average PM2.5 concentration
 5.8 ug/m3 
Current 24-hour average PM2.5 concentration
  7.8 ug/m3 
Good Moderate Unhealthy for Sensitive Groups Unhealthy Very
Unhealthy
0 15 40 65 150 ug/m3
 
Current Weather at NPS Park Police HQ
as of 11/07/2009 03:00 PM EST •     
Weather
      
 Current temperature
 58 F
 Current relative humidity
 50 %
Additional Information
 
The McMillan Reservoir monitoring site is operated by the Monitoring and Assessment Branch, Air Quality Division of the District of Columbia Department of the Environment.
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