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38.89511, -77.03637

Air Quality

Updated 2 hours ago

26

Good

Primary Pollutant: O3

O3 57 µg/m3 (26)
PM2.5 5 µg/m3 (22)
PM10 1 µg/m3 (1)
CO 317 µg/m3 (3)
NO2 10 µg/m3 (5)
SO2 0 µg/m3 (0)

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

30

O3 n/a n/a 3.76 (2) 66 (30) n/a n/a
Padonia

32

O3 1 (4) n/a n/a 70 (32) n/a n/a
Howard County Near R

29

PM2.5 7 (29) n/a 30 (15) n/a 401 (4) n/a
Franconia

25

O3 3.6 (15) n/a n/a 54 (25) n/a 0 (0)
Southern Maryland

26

O3 n/a n/a n/a 58 (26) n/a n/a
Sumerduck

27

O3 n/a n/a n/a 60 (27) n/a n/a
Furley

32

O3 n/a n/a n/a 70 (32) n/a n/a
Rockville

27

O3 4 (17) n/a n/a 60 (27) n/a n/a
South Carroll

29

O3 n/a n/a n/a 64 (29) n/a n/a
Essex

30

O3 n/a n/a 5.64 (3) 66 (30) 229 (2) 0 (0)

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, Apr 19Saturday, Apr 20Sunday, Apr 21Monday, Apr 22Tuesday, Apr 23
5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm
28272525252525242424252527272829323538394041414040383635353433323131293033333330273032333435343332312944566575808579746862595646332933353740404040393839495254535252525253565956534339414243434343
O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3PM2.5PM2.5PM2.5PM2.5PM2.5O3O3O3O3O3O3O3O3O3O3O3PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5O3O3O3O3O3O3O3O3O3O3PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5O3O3O3O3O3O3O3
SSESSESSESSESSSSSESSESSESSESSESSESSSSSSSSSSSSSSWSSWSSWSSWSSWSSWSSWSSWSSSWSSWSSWSSWSSWSSWSWSWSWSWSWSWWSWWSWWSWWWWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWNWNWNWNWNWNWWWWWWWSWSWSWSWSWSWWSWWSWWSWWSWWSWWSWWSWWSWWSWWSWWSWWSWWSWWSWWSW
15 24 15 24 16 26 16 26 16 26 15 24 15 24 15 24 15 24 15 24 15 24 14 22 14 22 14 22 15 24 15 24 15 24 16 26 16 26 17 28 17 28 18 30 18 30 18 30 17 28 15 24 14 22 11 18 10 17 9 15 8 13 6 9 5 8 3 5 3 5 5 8 6 9 5 9 5 8 5 8 5 9 6 10 7 11 7 11 6 10 6 9 6 9 6 9 6 9 5 8 4 7 3 5 3 5 3 5 3 5 3 5 3 5 3 5 4 6 4 6 4 6 4 7 4 7 5 8 5 8 5 8 5 8 5 9 6 9 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 3 4 3 5 3 5 3 5 3 5 4 6 5 7 5 8 6 9 6 10 7 11 7 11 7 11 6 10
77 25 77 25 75 24 73 23 71 22 69 21 68 20 67 19 66 19 66 19 65 18 65 18 64 18 64 18 63 17 63 17 61 16 61 16 61 16 63 17 66 19 69 21 71 22 72 22 72 22 71 22 70 21 69 21 67 19 64 18 61 16 60 16 58 14 57 14 56 13 55 13 54 12 53 12 52 11 51 11 52 11 54 12 55 13 57 14 58 15 60 16 61 16 63 17 64 18 64 18 64 18 64 18 62 17 61 16 59 15 57 14 56 13 54 12 54 12 55 13 55 13 55 13 56 13 56 13 58 15 61 16 63 17 65 19 68 20 70 21 69 21 69 20 68 20 67 20 67 19 66 19 65 18 64 18 63 17 62 17 61 16 60 16 60 16 61 16 61 16 61 16 62 16 62 17 65 18 67 20 70 21 73 23 75 24 78 26 77 25 76 24 75 24

Source: CAMS

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