Good
Primary Pollutant: PM2.5
O3 | 38 µg/m3 (17) |
PM2.5 | 11 µg/m3 (45) |
PM10 | 18 µg/m3 (16) |
CO | 307 µg/m3 (3) |
NO2 | 17 µg/m3 (8) |
SO2 | 2 µg/m3 (1) |
Source: CAMS, Vaisala Xweather
Station | AQI | Primary Pollutant | PM2.5 (AQI) | PM10 (AQI) | NO2 (AQI) | OZONE (AQI) | CO (AQI) | SO2 (AQI) |
---|---|---|---|---|---|---|---|---|
Rose Hill | 40 |
PM2.5 | 9.6 (40) | 14 (13) | n/a | 22 (10) | n/a | 1.834 (1) |
Ashburn | 23 |
PM2.5 | 5.5 (23) | 7 (6) | 14 (7) | 35 (16) | n/a | n/a |
Arlington | 18 |
NO2 | n/a | n/a | 37 (18) | 12 (5) | n/a | n/a |
Washington D.C. | 45 |
PM2.5 | 11 (45) | n/a | n/a | n/a | n/a | n/a |
Washington D.C. | 33 |
PM2.5 | 8 (33) | 12 (11) | 31 (15) | 27 (12) | 344 (3) | n/a |
Fairmount Heights | 41 |
PM2.5 | 10 (41) | n/a | 40 (20) | 22 (10) | n/a | n/a |
Takoma Park | 12 |
NO2 | n/a | n/a | 24 (12) | 27 (12) | n/a | n/a |
Fairmount Heights | 41 |
PM2.5 | 10 (41) | n/a | 41 (20) | n/a | 344 (3) | n/a |
Cambridge | 21 |
O3 | 0 (0) | n/a | n/a | 47 (21) | n/a | 0 (0) |
Essex | 19 |
NO2 | n/a | n/a | 38 (19) | 24 (11) | 229 (2) | 0.262 (0) |
Source: Virginia Dept. of Environmental Quality, District of Columbia - Department of Energy and Environment, Maryland Department of the Environment
Hour |
AQI |
Primary |
Wind Dir |
Wind Speed ( mph kmh) |
Temp (°F°C) |
Monday, Dec 16 | Tuesday, Dec 17 | Wednesday, Dec 18 | Thursday, Dec 19 | Friday, Dec 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm | 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm | 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm | 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm | 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm |
31 | 31 | 32 | 32 | 44 | 36 | 29 | 23 | 24 | 24 | 25 | 25 | 26 | 26 | 29 | 27 | 30 | 33 | 33 | 29 | 28 | 28 | 29 | 32 | 33 | 30 | 32 | 31 | 32 | 34 | 28 | 29 | 29 | 31 | 29 | 33 | 38 | 44 | 49 | 55 | 60 | 62 | 62 | 57 | 47 | 42 | 46 | 42 | 42 | 45 | 46 | 47 | 47 | 33 | 29 | 34 | 40 | 38 | 43 | 34 | 34 | 34 | 33 | 33 | 25 | 52 | 51 | 50 | 20 | 23 | 26 | 27 | 27 | 27 | 26 | 30 | 44 | 54 | 62 | 66 | 64 | 52 | 43 | 40 | 39 | 42 | 43 | 42 | 46 | 47 | 48 | 44 | 42 | 40 | 39 | 40 | 44 |
PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | O3 | O3 | O3 | O3 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 |
S | SSE | SSE | SSE | S | S | S | S | S | SSW | SSW | SSW | SSW | SSW | SSW | SW | SW | SW | WSW | WSW | W | W | WNW | WNW | WNW | WNW | WNW | WNW | WNW | NW | NW | NW | NW | NNW | NNW | N | N | NE | NE | NE | E | E | E | ESE | ESE | ESE | SE | SE | SE | SSE | SSE | SSE | SW | SW | SW | SW | SW | SW | WNW | WNW | WNW | WNW | WNW | WNW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NNW | NNW | NNW | NNW | NNW | NNW | NNE | NNE | NNE | NNE | NNE | NNE | E | E | E | E | E | E | SE | SE | SE |
4 6 | 4 7 | 3 6 | 3 6 | 4 7 | 5 8 | 6 9 | 6 9 | 7 11 | 8 13 | 9 14 | 9 14 | 9 14 | 9 14 | 9 14 | 8 13 | 7 11 | 7 11 | 7 11 | 7 11 | 8 13 | 8 13 | 8 13 | 7 11 | 7 11 | 6 9 | 5 8 | 4 6 | 3 5 | 3 4 | 3 4 | 2 4 | 2 4 | 2 4 | 2 4 | 2 4 | 2 4 | 2 4 | 2 4 | 2 4 | 2 4 | 3 4 | 3 5 | 4 6 | 4 7 | 5 8 | 6 9 | 6 9 | 6 9 | 6 9 | 5 8 | 5 8 | 4 7 | 5 8 | 6 10 | 7 11 | 7 12 | 8 13 | 9 14 | 9 14 | 9 14 | 9 14 | 9 14 | 9 14 | 9 14 | 9 15 | 10 16 | 10 16 | 10 17 | 11 17 | 11 18 | 10 16 | 9 14 | 7 12 | 6 10 | 5 8 | 4 6 | 4 6 | 3 5 | 3 5 | 3 5 | 3 4 | 2 4 | 3 4 | 3 5 | 3 5 | 3 5 | 4 6 | 4 6 | 4 7 | 5 8 | 5 9 | 6 9 | 6 10 | 7 11 | 7 11 | 6 10 |
48 8.8 | 48 8.8 | 48 8.8 | 47 8.4 | 46 8 | 45 7.2 | 44 6.7 | 45 7.2 | 46 7.7 | 47 8.4 | 49 9.5 | 49 9.7 | 50 10 | 50 10 | 50 10 | 50 10 | 49 9.7 | 50 10 | 53 11.7 | 54 12.4 | 58 14.5 | 59 15 | 60 15.8 | 61 16 | 59 15.2 | 59 15 | 55 12.7 | 52 11.2 | 49 9.5 | 47 8.4 | 45 7.3 | 44 6.4 | 42 5.7 | 41 5.1 | 40 4.6 | 39 4 | 38 3.4 | 37 2.7 | 37 2.5 | 36 2.4 | 36 2.2 | 39 3.7 | 41 5.2 | 44 6.7 | 45 7.4 | 47 8.1 | 48 8.8 | 49 9.4 | 50 10 | 51 10.5 | 51 10.4 | 50 10.2 | 50 10 | 49 9.4 | 48 8.8 | 47 8.2 | 46 7.6 | 45 7 | 44 6.4 | 43 5.9 | 42 5.4 | 41 4.9 | 40 4.4 | 39 3.9 | 38 3.4 | 39 4 | 40 4.6 | 41 5.1 | 42 5.7 | 43 6.3 | 44 6.8 | 43 6.1 | 42 5.3 | 40 4.5 | 39 3.8 | 37 3 | 36 2.2 | 35 1.6 | 34 1.1 | 33 0.5 | 32 -0.1 | 31 -0.6 | 30 -1.2 | 30 -1.3 | 30 -1.3 | 29 -1.4 | 29 -1.5 | 29 -1.5 | 29 -1.6 | 31 -0.6 | 33 0.4 | 35 1.5 | 36 2.5 | 38 3.5 | 40 4.5 | 39 4.2 | 39 3.8 |
Source: CAMS, Vaisala Xweather
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