This demonstration page uses our WeatherBlox Air Quality layout. Learn more.

Air Quality

Updated 28 minutes ago

40

Good

Primary Pollutant: O3

O3 88 µg/m3 (40)
PM2.5 2 µg/m3 (7)
CO 186 µg/m3 (2)
NO2 6 µg/m3 (3)
SO2 5 µg/m3 (1)

Source: AirNow (EPA), Virginia Dept. of Environmental Quality, CAMS

Nearby Stations

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

41

O3 n/a n/a 5.64 (3) 90 (41) n/a n/a
Howard County Near R

17

NO2 1 (4) n/a 34 (17) n/a 366 (4) n/a
Franconia

34

O3 2.1 (9) n/a n/a 74 (34) n/a 2.62 (1)
Sumerduck

33

O3 n/a n/a n/a 72 (33) n/a n/a
Rockville

41

O3 1 (4) n/a n/a 90 (41) n/a n/a
South Carroll

45

O3 n/a n/a n/a 100 (45) n/a n/a
Martinsburg

34

O3 n/a n/a n/a 74 (34) n/a n/a
Mcmillan Reservoir

17

PM2.5 4 (17) n/a n/a n/a n/a n/a
Ashburn

40

O3 n/a n/a 5.64 (3) 88 (40) n/a n/a
Frederick Airport

42

O3 n/a n/a n/a 92 (42) n/a n/a

Source: AirNow (EPA), Virginia Dept. of Environmental Quality, Maryland Department of the Environment, West Virginia Division of Air Quality - Wheeling, District of Columbia - Department of Energy and Environment

Extended Forecast

 
Hour
AQI
Primary
Wind Dir
 
Wind Speed ( mph kmh)
Temp (°F°C)
Sunday, Mar 24Monday, Mar 25Tuesday, Mar 26Wednesday, Mar 27Thursday, Mar 28
12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm
37414445454538324552566166717572686257555251484645454545453934312930303030302929292929292830323335363839404139383635414548535559636873778263353740424545464745444240393736353434343740414336394244
O3O3O3O3O3O3O3PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3PM2.5PM2.5PM2.5PM2.5O3O3O3O3
SSWSSWSSWSSWSSWSSWSSWSSSSWSWWSWWWNWWNWWNWNWNWNWNNWNNWNNNNNENNENNENNENNENNENNENNENNENNENNENNENNENNENNENNNNNNNNNNNNNNNNNENNENNENNENNENNENNENNENNENNENNENNENNENNENNEESEESEESEESEESEESESESESESESESESSESSESSESSESSESSESSESSESSESSESSESSESSESSESSESSE
8 13 9 15 10 17 10 17 10 17 10 17 8 13 6 9 5 8 5 8 3 5 3 5 3 5 3 5 3 5 3 5 3 5 3 5 3 5 3 5 3 5 5 8 5 8 6 9 6 9 7 11 7 11 7 11 8 13 8 13 8 13 7 11 7 11 8 13 8 13 9 15 9 14 8 14 8 13 8 14 9 14 9 15 8 14 8 12 7 11 8 14 10 16 11 18 10 16 8 14 7 11 8 12 8 14 9 15 8 12 6 10 5 8 4 7 4 6 3 6 3 5 3 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4 3 4 3 5 3 6 4 6 4 7 5 8 5 8 5 8 5 8 5 8 5 8 5 8 5 8 5 8 5 8 5 8 5 8 5 8 4 7 4 6 3 6 3 5 3 4 2 4 3 5 4 6 5 7 5 9
52 11 56 13 58 14 59 15 61 16 61 16 58 14 56 13 55 13 53 12 52 11 51 11 50 10 50 10 49 9 48 9 47 8 47 8 47 8 45 7 45 7 47 8 48 9 49 9 50 10 51 11 52 11 52 11 51 11 51 11 49 9 47 8 44 7 42 6 41 5 40 4 39 4 38 3 37 3 36 2 36 2 35 2 34 1 34 1 33 1 36 2 38 3 41 5 42 6 44 6 45 7 45 7 45 7 45 7 43 6 42 5 40 4 39 4 38 3 37 3 35 2 34 1 33 1 33 0 32 0 32 0 32 0 31 0 31 -1 34 1 36 2 39 4 42 5 44 7 47 8 46 8 46 8 45 7 44 7 44 7 43 6 42 6 41 5 40 4 38 4 37 3 36 2 36 2 36 2 36 2 35 2 35 2 35 2 38 4 42 5 45 7 48 9

Source: CAMS

Powered by AerisWeather