34°F  
  Ashburn, Virginia | 8:10 PM
Air Quality (U.S.)

  Rise:  7:15AM | Set:  4:47PM
9hrs 32mins

  Rise:  7:45PM | Set:  10:15AM
Waning gibbous


Rise: 7:15AM | Set:  4:47PM
9hrs 32mins


Rise:7:45PM | Set:10:15AM
Waning gibbous

Air Quality Observations

Station Name Concentration Category
BUTLER MANUF. CO NEAR REST 31 ppb Good
Shenandoah NP 35 ppb Good
WIDEWATER 22 ppb Good
CORBIN 21 ppb Good
SUMERDUCK 19 ppb Good
Air Quality Forecast

Date Pollutant Concentration Category
06 Dec Particulates smaller than 2.5 microns 66 ppb Moderate
07 Dec Particulates smaller than 2.5 microns 58 ppb Moderate
08 Dec Particulates smaller than 2.5 microns 39 ppb Good
09 Dec Particulates smaller than 2.5 microns 50 ppb Good
10 Dec Particulates smaller than 2.5 microns 44 ppb Good
11 Dec Particulates smaller than 2.5 microns n/a Good
12 Dec Particulates smaller than 2.5 microns n/a Good

Date Pollutant Concentration Category
06 Dec Particulates smaller than 2.5 microns 65 ppb Moderate
07 Dec Particulates smaller than 2.5 microns 58 ppb Moderate
08 Dec Particulates smaller than 2.5 microns 39 ppb Good
09 Dec Particulates smaller than 2.5 microns 50 ppb Good
10 Dec Particulates smaller than 2.5 microns 44 ppb Good
11 Dec Particulates smaller than 2.5 microns n/a Good
12 Dec Particulates smaller than 2.5 microns n/a Good

Date Pollutant Concentration Category
06 Dec Particulates smaller than 2.5 microns 55 ppb Moderate
07 Dec Particulates smaller than 2.5 microns 55 ppb Moderate
08 Dec Particulates smaller than 2.5 microns 39 ppb Good
09 Dec Particulates smaller than 2.5 microns 50 ppb Good
10 Dec Particulates smaller than 2.5 microns 39 ppb Good
11 Dec Particulates smaller than 2.5 microns n/a Good
12 Dec Particulates smaller than 2.5 microns n/a Good

Date Pollutant Concentration Category
06 Dec Particulates smaller than 2.5 microns n/a Good
07 Dec Particulates smaller than 2.5 microns 53 ppb Moderate
08 Dec Particulates smaller than 2.5 microns 33 ppb Good
09 Dec Particulates smaller than 2.5 microns 50 ppb Good
10 Dec Particulates smaller than 2.5 microns 39 ppb Good
11 Dec Particulates smaller than 2.5 microns n/a Good
12 Dec Particulates smaller than 2.5 microns n/a Good