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38.80484, -77.04692

Air Quality

Updated 2 hours ago

25

Good

Primary Pollutant: PM2.5

O3 51 µg/m3 (23)
PM2.5 6 µg/m3 (25)
PM10 9 µg/m3 (8)
CO 229 µg/m3 (2)
NO2 33 µg/m3 (16)
SO2 1 µg/m3 (1)

Source: AirNow (EPA), Virginia Dept. of Environmental Quality, District of Columbia - Department of Energy and Environment, Maryland Department of the 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
Howard County Near R

25

NO2 1 (4) n/a 51 (25) n/a 34 (0) n/a
Franconia

25

PM2.5 6 (25) n/a n/a n/a n/a 2.62 (1)
Furley

31

O3 n/a n/a n/a 68 (31) n/a n/a
Rockville

31

O3 2 (8) n/a n/a 68 (31) n/a n/a
South Carroll

35

O3 n/a n/a n/a 76 (35) n/a n/a
Essex

26

O3 n/a n/a 30 (15) 58 (26) 229 (2) 5.24 (3)
Ashburn

5

NO2 n/a n/a 9.4 (5) n/a n/a n/a
Baltimore County Nea

23

NO2 n/a n/a 47 (23) n/a n/a n/a

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

Extended Forecast

 
Hour
AQI
Primary
Wind Dir
 
Wind Speed ( mph kmh)
Temp (°F°C)
Friday, Feb 22Saturday, Feb 23Sunday, Feb 24Monday, Feb 25Tuesday, Feb 26
4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am
33384348525252484442404141546172839199107115119123117113947970615545434039393838383937353229272626272117181818181818202325283235353332323131313030292828272726272728282930303131313029292828272727262629
PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3PM2.5
NNWNNWNNNNNNNNNNNNNNNENNENENENENENEENEENEENEENEENEENEEEEESEESEESEESEESEESEEEEESEESEESEESEESEESESSSSSSSSWSSWSSWWSWWSWWSWWWWWWWWWWWWWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWNWNWNW
6 9 5 8 5 8 5 8 5 8 6 9 6 9 6 9 5 8 5 8 5 8 3 5 3 5 3 5 3 5 3 5 3 5 2 4 2 4 2 4 2 4 2 4 2 4 3 5 3 5 3 5 3 5 3 5 3 5 5 8 5 8 5 8 6 9 6 9 6 9 6 9 6 9 5 9 5 8 5 8 4 7 4 6 3 5 3 5 3 4 2 4 3 6 5 7 6 9 6 10 7 11 7 11 8 14 10 16 11 18 15 23 18 28 21 33 23 36 25 39 26 42 25 39 23 36 21 33 19 31 18 29 17 27 15 25 14 23 13 21 13 21 14 22 14 23 15 24 16 25 16 26 17 27 17 28 18 29 18 30 19 30 19 31 18 30 17 28 16 26 15 24 14 22 13 21 12 19 10 17 9 15 8 13 7 11 6 9 5 9 5 8 5 7
45 7 42 6 42 6 40 4 40 4 41 5 42 6 43 6 44 7 44 7 44 7 44 7 44 7 43 6 42 6 41 5 40 4 40 4 39 4 39 4 38 3 38 3 38 3 37 3 37 3 37 3 37 3 36 2 37 3 38 3 39 4 39 4 39 4 40 4 40 4 40 4 40 4 40 4 40 4 40 4 40 4 40 4 40 4 40 5 41 5 41 5 41 5 42 5 42 6 43 6 43 6 44 7 47 8 49 10 52 11 55 13 57 14 60 16 60 16 60 16 60 16 57 14 54 12 51 11 49 10 48 9 46 8 45 7 43 6 42 6 41 5 41 5 40 4 39 4 39 4 38 3 40 4 41 5 43 6 45 7 46 8 48 9 47 8 46 8 45 7 44 7 43 6 42 6 41 5 40 4 39 4 38 3 37 3 36 2 36 2 35 2 35 1

Source: CAMS

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