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38.88101, -77.10428

Air Quality

Updated 2 hours ago

49

Good

Primary Pollutant: PM2.5

O3 47 µg/m3 (21)
PM2.5 12 µg/m3 (49)
PM10 19 µg/m3 (17)
CO 189 µg/m3 (2)
NO2 17 µg/m3 (8)
SO2 1 µg/m3 (0)

Source: AirNow (EPA), Virginia Dept. of Environmental Quality, District of Columbia - Department of Energy and Environment, EPA Office of Atmospheric Programs, CAMS

Nearby Stations

Station AQI Primary Pollutant PM2.5 (AQI) PM10 (AQI) NO2 (AQI) OZONE (AQI) CO (AQI) SO2 (AQI)
James S. Long Park

4

NO2 n/a n/a 7.52 (4) n/a n/a n/a
Franconia

29

PM2.5 6.9 (29) n/a n/a n/a n/a 0 (0)
Mcmillan Reservoir

50

PM2.5 12 (50) n/a n/a n/a n/a n/a
Ashburn

4

NO2 n/a n/a 7.52 (4) n/a n/a n/a
Aurora Hills

6

NO2 n/a n/a 11 (6) n/a 115 (1) n/a
Beltsville

25

O3 n/a n/a n/a 56 (25) n/a n/a
Dcnearroad

57

PM2.5 15 (57) n/a 21 (10) n/a 263 (3) n/a
Takomarec

20

O3 n/a n/a 19 (9) 44 (20) n/a n/a
Mcmillan Ncore

22

O3 n/a 19 (17) 17 (8) 48 (22) n/a 2.62 (1)
River_terrace

53

PM2.5 13 (53) n/a 26 (13) 40 (18) n/a 0 (0)

Source: AirNow (EPA), Virginia Dept. of Environmental Quality, District of Columbia - Department of Energy and Environment, EPA Office of Atmospheric Programs

Extended Forecast

 
Hour
AQI
Primary
Wind Dir
 
Wind Speed ( mph kmh)
Temp (°F°C)
Thursday, Nov 21Friday, Nov 22Saturday, Nov 23Sunday, Nov 24Monday, Nov 25
1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am
54535352525456555445343335353441484645434243434343444546484848515253555658402525262830303132302827252630354148444134293132302828292624262832353943434340373226221817172022252831292729303132333639
PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5O3O3O3O3PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5O3O3O3O3O3O3O3O3O3O3O3O3PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5O3O3O3O3O3PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5O3O3O3O3O3O3O3PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5
NWNWNWNWNWNWNWNWNWNWWNWWSWSWSWSSWSSWSSWSSSSSSSWSSWSSWSSWSSWSSWSSWSWSWSWWSWWSWWSWWWWNWWNWWNWNWNWNWNWNWNWNNWNNWNNWNNWNNWNNWNNENNENNEENEENEENESSESSESSESSESSESSESESESENNNNNNNWNWNWNWNWNWNWNWNWNWNWNWNWNWNWNWNWNWWNWWNWWNWWNWWNWWNW
8 13 8 13 8 13 8 13 7 11 7 11 6 9 6 9 6 9 6 9 6 9 5 8 5 8 5 8 6 9 6 9 6 9 6 9 6 9 7 11 7 11 8 13 8 13 7 11 7 11 7 11 8 13 8 13 7 11 7 11 6 9 6 9 7 11 8 13 8 13 9 15 9 15 10 15 10 16 10 17 9 15 8 13 7 11 7 12 8 12 8 13 7 11 6 9 5 8 5 8 5 8 5 8 4 7 4 6 3 5 3 5 3 5 3 5 3 5 3 4 2 4 3 4 3 5 3 5 3 5 3 5 3 5 3 5 3 5 3 5 3 4 2 4 2 4 3 5 4 7 5 8 6 10 7 11 8 13 9 14 9 15 10 16 10 17 11 17 11 18 11 17 10 17 10 16 9 15 9 14 8 13 8 12 7 12 7 11 7 11 6 10 6 9
40 4 40 4 40 4 39 4 38 3 37 3 39 4 41 5 44 7 46 8 48 9 50 10 51 11 51 11 51 11 51 11 50 10 49 9 49 9 48 9 48 9 47 8 47 8 47 8 47 8 47 8 46 8 46 8 46 8 47 8 47 8 48 9 51 11 53 12 55 13 56 13 56 13 55 13 55 13 54 12 52 11 49 10 47 8 46 8 44 7 43 6 42 6 42 5 41 5 40 5 40 4 39 4 39 4 39 4 39 4 40 4 41 5 42 6 43 6 44 7 45 7 45 7 45 7 45 7 44 7 44 7 43 6 43 6 42 6 42 6 42 5 41 5 41 5 41 5 41 5 41 5 41 5 41 5 41 5 42 6 44 7 45 7 47 8 48 9 50 10 49 9 48 9 46 8 45 7 44 7 43 6 42 6 41 5 41 5 40 4 39 4 38 3

Source: CAMS

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