For more information about National Park Service air resources, please visit http://www.nature.nps.gov/air/.


National Mall & Memorial Parks

  • View from the Netherlands Carillon
    Looking East
  • Air Data
    & Weather
  • NPS Air
    Webcams
Visual Range is about 19 miles • updated 12/22/2014 09:45 AM EST
View from the Netherlands Carillon Looking East
Ozone (O3) at McMillan NCORE Monitoring Site 

O3 concentration Current Today's
Maximum
Yesterday's
Maximum
8-hour average unavailable unavailable  unavailable 
1-hour average unavailable unavailable  unavailable 

*Ozone (O3) is measured in parts per billion (ppb)



AQI Ozone

*The McMillan NCORE monitoring site is operated by the
District of Columbia Department of the Environment.




Particulate Matter (PM2.5) at McMillan NCORE Monitoring Site 

PM2.5 concentration
Current Today's
Maximum
Yesterday's
Maximum
24-hour average unavailable unavailable
1-hour average 12.0 μg/m3 unavailable  unavailable

*Particulate Matter (PM2.5) is measured in micrograms per cubic meter (μg/m3)



Particulate Matter (PM2.5)

*The McMillan NCORE monitoring site is operated by the
District of Columbia Department of the Environment.




Weather at NPS Park Police Headquarters Monitoring Site  updated 12/22/2014 09:00 AM EST

Current temperature  37 F 
Yesterday's minimum temperature  35 F 
Yesterday's maximum temperature  45 F 
Current relative humidity  70 % 
Yesterday's minimum relative humidity  46 % 
Yesterday's maximum relative humidity  68 % 


Visibility at NPS Park Police Headquarters Monitoring Site
updated 12/22/2014 09:00 AM EST

Approximate Visual Range
Current Yesterday's
Maximum
Yesterday's
Minimum
  19 miles 35 miles 17 miles


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Current Air Quality »
at McMillan NCORE
Ozone - O3
Ozone concentration is ***O3*** parts per billion air quality index (AQI) for Ozone and Particulate Matter from good to unhealthy PM 2.5 is 12.0 micrograms per cubic meter
Particulate Matter - PM2.5


at Park Police Headquarters
Visual Range
19 miles

updated 12/22/2014 09:00 AM EST
  • See more air data »
  • Current Weather »
    at Park Police Headquarters
    updated 12/22/2014 09:00 AM EST
    Temperature
    37 F

    Humidity
    70 %

    Wind
    ENE-2 mph

  • See more weather data »
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    Last Updated: December 22, 2014