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38.80484, -77.04692

Air Quality

Updated 2 hours ago

33

Good

Primary Pollutant: PM2.5

O3 45 µg/m3 (20)
PM2.5 8 µg/m3 (33)
CO 382 µg/m3 (4)
NO2 23 µg/m3 (11)
SO2 1 µg/m3 (0)

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

21

PM2.5 5 (21) n/a 24 (12) 44 (20) n/a n/a
Mcmillan Reservoir

29

PM2.5 7 (29) n/a n/a n/a n/a n/a
Mcmillan Ncore

34

O3 n/a n/a 9.4 (5) 74 (34) n/a 2.62 (1)
Takomarec

19

O3 n/a n/a 21 (10) 42 (19) n/a n/a
Dcnearroad

45

PM2.5 11 (45) n/a 45 (22) n/a 481 (5) n/a
Baltimore County Nea

19

NO2 n/a n/a 38 (19) n/a n/a n/a
Essex

19

O3 n/a n/a 19 (9) 42 (19) 229 (2) 0 (0)
Howard County Near R

24

NO2 5 (21) n/a 49 (24) n/a 378 (4) n/a
Rockville

33

PM2.5 8 (33) n/a n/a 8 (4) n/a n/a

Source: AirNow (EPA), District of Columbia - Department of Energy and Environment, Maryland Department of the Environment

Extended Forecast

 
Hour
AQI
Primary
Wind Dir
 
Wind Speed ( mph kmh)
Temp (°F°C)
Wednesday, Apr 14Thursday, Apr 15Friday, Apr 16Saturday, Apr 17Sunday, Apr 18
3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am
44444444444444224444444444445959595959595959444444444444444459444444443131313126222222171717171717171717131317171717172217171717171717222222222626262626262626263131313131313126222222224444443728
PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5O3PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3PM2.5PM2.5PM2.5PM2.5PM2.5NO2NO2
SSWSSWSSWSSWSSWSSWSSWSSWSSWSSWSSWSSWSSSSSSESSESSESSSSSSSWWWNWWNWWNWWNWWNWWNWNWWNWWNWWNWWNWWNWNWNWNWNWNWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWNWNWNWNWNWNWNWNWNWNWNWNWNWNWNWNWNWNWWNWWNWWNWWNWWNWWNWESEESEESEESEESEESESSESSE
5 8 4 6 4 6 4 6 5 8 5 8 5 8 6 9 6 9 6 9 6 9 6 9 6 9 6 9 6 9 6 9 6 9 6 9 6 9 5 9 5 9 5 8 4 7 3 5 3 5 3 5 3 5 5 8 5 8 6 9 7 11 7 11 8 13 9 15 10 16 11 18 12 19 13 21 14 22 14 23 15 23 15 24 13 21 11 18 10 15 9 14 8 13 7 11 8 12 8 14 9 15 9 15 9 14 9 14 10 16 11 17 12 19 12 19 12 20 12 20 13 20 13 20 13 21 12 19 11 17 10 15 9 14 8 13 8 12 7 11 6 10 6 9 6 9 6 9 6 9 6 9 6 9 6 9 6 9 6 9 6 9 6 9 6 9 6 9 5 8 5 7 4 7 3 6 3 5 2 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4
53 12 52 11 51 11 51 11 52 11 54 12 57 14 61 16 64 18 65 18 64 18 64 18 64 18 64 18 63 17 63 17 62 17 61 16 59 15 59 15 58 14 58 14 57 14 57 14 57 14 56 13 56 13 56 13 56 13 56 13 57 14 59 15 61 16 62 17 63 17 64 18 64 18 63 17 63 17 61 16 59 15 57 14 55 13 53 12 51 10 50 10 49 9 48 9 47 9 47 8 46 8 47 8 47 8 48 9 50 10 52 11 54 12 56 13 57 14 59 15 60 15 60 16 61 16 60 15 58 15 57 14 56 13 54 12 53 11 51 11 49 10 48 9 48 9 48 9 48 9 48 9 48 9 48 9 50 10 53 11 55 13 57 14 60 15 62 17 62 17 61 16 61 16 61 16 60 16 60 16 59 15 57 14 56 13 55 13 53 12 52 11 52 11

Source: CAMS

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