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Air Quality

Updated 44 minutes ago

37

Good

Primary Pollutant: PM2.5

O3 44 µg/m3 (20)
PM2.5 9 µg/m3 (37)
CO 240 µg/m3 (2)
NO2 8 µg/m3 (4)
SO2 4 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)
River_terrace

50

PM2.5 12 (50) n/a 24 (12) 34 (15) n/a n/a
Mcmillan Reservoir

21

PM2.5 5 (21) n/a n/a n/a n/a n/a
Mcmillan Ncore

25

O3 n/a n/a 19 (9) 56 (25) n/a 0 (0)
Takomarec

20

O3 n/a n/a 26 (13) 44 (20) n/a n/a
Dcnearroad

50

PM2.5 12 (50) n/a 39 (19) n/a 458 (4) n/a
Baltimore County Nea

19

NO2 n/a n/a 38 (19) n/a n/a n/a
Howard County Near R

7

NO2 n/a n/a 15 (7) n/a 229 (2) n/a
Rockville

37

PM2.5 9 (37) n/a n/a 30 (14) n/a n/a
Hu-Beltsville

21

PM2.5 5 (21) n/a 11 (6) 40 (18) 229 (2) 0 (0)
Beltsville

22

O3 n/a n/a n/a 48 (22) n/a n/a

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

Extended Forecast

 
Hour
AQI
Primary
Wind Dir
 
Wind Speed ( mph kmh)
Temp (°F°C)
Saturday, Apr 17Sunday, Apr 18Monday, Apr 19Tuesday, Apr 20Wednesday, Apr 21
11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
42424242424242424242383137444444444444373134384242424141424242424241333744444949494949373542424242424242424242424242424449496969696969494437444449444444444444443737374444494949494437373737374444
PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5O3O3O3O3O3O3O3O3O3O3PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5O3O3O3O3O3O3O3O3O3PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5PM2.5O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3O3
NWWWNWWNWWNWNWNWWNWWNWWNWNWNWNWWNWWNWWNWWNWWNWWNWWWSWSWSWSWSWWSWSWWSWSWWSWWSWWSWWWNWNWNWNWNWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWSWWSWWSWWSWWSWWSWWSWWSWWSWSWSWSWSWSWSWSSWSSWSSWSSSSSSSSSSSSSSSSSSSSSWWWWWWWNWWNWWNWWNW
3 5 3 5 3 5 3 5 2 4 2 4 2 4 2 4 2 4 2 4 5 9 6 9 6 9 6 9 6 9 6 9 6 9 6 9 6 9 6 9 4 7 2 4 4 7 3 6 3 5 3 5 2 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4 3 5 6 9 7 11 7 12 7 12 8 12 7 12 7 12 7 11 5 9 4 6 2 4 3 4 3 5 3 5 3 5 3 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4 3 6 5 7 6 9 7 11 7 12 8 13 8 14 9 14 9 15 8 13 7 11 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 7 11 8 13 10 15 11 17 12 19 13 21 13 21 13 22 14 22 14 22 14 22 14 23 13 21 12 20 12 19
51 10 49 9 48 9 46 8 45 7 44 7 43 6 43 6 44 7 47 8 51 10 54 12 57 14 58 15 60 16 62 17 63 17 63 17 63 17 62 17 61 16 59 15 56 13 54 12 52 11 51 10 51 11 50 10 49 9 48 9 46 8 45 7 46 8 49 9 53 12 57 14 60 16 62 16 63 17 65 18 66 19 66 19 67 19 65 18 63 17 61 16 58 15 56 13 53 12 52 11 51 10 50 10 49 9 48 9 47 8 48 9 50 10 51 11 56 13 60 16 65 18 67 20 69 21 71 22 71 22 71 22 72 22 69 21 66 19 64 18 62 17 61 16 59 15 58 14 57 14 55 13 55 13 55 13 55 13 55 13 54 12 54 12 56 13 57 14 58 15 60 15 61 16 62 17 60 16 58 14 56 13 54 12 52 11 50 10 48 9 46 8 45 7

Source: CAMS

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