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Air Quality

Updated an hour ago

37

Good

Primary Pollutant: PM2.5

O3 79 µg/m3 (36)
PM2.5 9 µg/m3 (37)
CO 166 µg/m3 (2)
NO2 2 µg/m3 (1)
SO2 3 µg/m3 (1)

Source: AirNow (EPA), Virginia Dept. of Environmental Quality, Maryland Department of the Environment, CAMS

Nearby Stations

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

35

O3 n/a n/a 1.88 (1) 78 (35) n/a n/a
Howard County Near R

6

NO2 1 (4) n/a 11 (6) n/a 286 (3) n/a
Franconia

38

O3 1.8 (7) n/a n/a 84 (38) n/a 0 (0)
Sumerduck

33

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

37

O3 n/a n/a n/a 82 (37) n/a n/a
South Carroll

38

O3 n/a n/a n/a 84 (38) n/a n/a
Martinsburg

17

O3 n/a n/a n/a 38 (17) n/a n/a
Mcmillan Reservoir

0

PM2.5 0 (0) n/a n/a n/a n/a n/a
Ashburn

35

O3 n/a n/a 1.88 (1) 78 (35) n/a n/a
Baltimore County Nea

5

NO2 n/a n/a 9.4 (5) n/a 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, Apr 21Monday, Apr 22Tuesday, Apr 23Wednesday, Apr 24Thursday, Apr 25
2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm
49484646465357575755525353535454535352525252535148474648495662718076726967656464646361564843454547464545434138384247525456555453524334303235374144454546444138363739424141414143454340303235384144
PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5O3O3O3O3O3O3O3O3O3O3PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5O3O3O3O3O3O3O3O3O3O3O3O3O3PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5O3O3O3O3O3
NWNWNWNNWNNWNNWNWNWNWNWNWNWNWNWNWNWNWNWNWNNWNNWNNWNNWNNWNNWNNWNNWNNWNNWNWNWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWSWSWSWSWSWSWSSWSSWSSWSSSWSWWSWWSWWSWWSWWSWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWNWNWNWNWNWNWNNWNNWNNWNNWNNWNNWNNNNNNSWSWSWSWSWSW
7 11 7 11 8 13 8 13 8 13 7 11 7 11 7 11 7 11 7 11 7 11 7 11 7 11 7 11 8 13 8 13 9 15 9 15 10 17 11 18 13 21 13 21 13 21 11 18 10 17 10 17 9 15 9 15 8 13 7 11 6 9 6 9 5 8 5 8 5 8 3 5 3 5 3 5 3 5 3 5 3 4 2 3 1 2 2 4 4 6 5 8 5 8 5 8 5 8 5 9 6 10 7 11 7 11 6 10 6 9 6 9 5 9 5 8 5 8 5 8 5 8 5 8 5 8 5 8 5 8 5 8 5 8 5 9 6 10 7 11 8 12 8 14 9 15 9 14 8 13 7 12 7 11 6 10 6 9 5 9 5 8 5 7 4 7 4 6 3 5 3 5 3 5 3 5 3 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4
64 18 64 18 64 18 64 18 62 17 61 16 60 16 58 14 56 13 54 12 53 12 52 11 51 11 50 10 50 10 49 9 49 9 49 9 51 11 54 12 58 14 62 17 65 18 68 20 70 21 71 22 72 22 72 22 71 22 69 21 67 19 65 18 62 17 60 16 59 15 58 14 57 14 56 13 54 12 53 12 53 12 54 12 54 12 60 15 65 19 71 22 74 23 76 25 79 26 79 26 79 26 79 26 77 25 76 24 74 23 72 22 71 21 69 21 67 20 66 19 64 18 64 18 63 17 63 17 63 17 62 17 62 17 64 18 66 19 67 20 69 21 71 22 73 23 72 22 70 21 69 21 68 20 66 19 65 18 64 18 62 17 61 16 59 15 58 14 56 13 56 13 56 13 55 13 55 13 55 13 55 13 57 14 59 15 61 16 64 18 66 19 68 20

Source: CAMS

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