Moderate
Primary Pollutant: PM2.5
O3 | 33 µg/m3 (15) |
PM2.5 | 16 µg/m3 (60) |
PM10 | 25 µg/m3 (23) |
CO | 328 µg/m3 (3) |
NO2 | 19 µg/m3 (10) |
SO2 | 7 µg/m3 (4) |
Source: CAMS, Vaisala Xweather
Station | AQI | Primary Pollutant | PM2.5 (AQI) | PM10 (AQI) | NO2 (AQI) | OZONE (AQI) | CO (AQI) | SO2 (AQI) |
---|---|---|---|---|---|---|---|---|
Rose Hill | 26 |
PM2.5 | 6.4 (26) | 13 (12) | n/a | 5.88 (3) | n/a | 3.144 (2) |
Ashburn | 21 |
PM2.5 | 5.1 (21) | 9 (8) | 34 (17) | 16 (7) | n/a | n/a |
Arlington | 31 |
NO2 | n/a | n/a | 63 (31) | 5.88 (3) | 344 (3) | n/a |
Washington D.C. | 45 |
PM2.5 | 11 (45) | n/a | n/a | n/a | n/a | n/a |
Brogue | 21 |
O3 | n/a | n/a | n/a | 47 (21) | n/a | n/a |
Washington D.C. | 37 |
PM2.5 | 9 (37) | 21 (19) | 48 (24) | 20 (9) | 458 (4) | n/a |
Fairmount Heights | 57 |
PM2.5 | 15 (57) | n/a | 51 (25) | 20 (9) | n/a | n/a |
Takoma Park | 21 |
NO2 | n/a | n/a | 43 (21) | 24 (11) | n/a | n/a |
Fairmount Heights | 59 |
PM2.5 | 16 (59) | n/a | 55 (27) | n/a | 573 (6) | n/a |
Essex | 20 |
O3 | n/a | n/a | 24 (12) | 45 (20) | 229 (2) | 0.262 (0) |
Source: Virginia Dept. of Environmental Quality, District of Columbia - Department of Energy and Environment, Pennsylvania Dept. of Environmental Protection, Maryland Department of the Environment
Hour |
AQI |
Primary |
Wind Dir |
Wind Speed ( mph kmh) |
Temp (°F°C) |
Friday, Dec 13 | Saturday, Dec 14 | Sunday, Dec 15 | Monday, Dec 16 | Tuesday, Dec 17 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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 | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm | 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am |
38 | 39 | 40 | 42 | 38 | 38 | 47 | 59 | 68 | 71 | 60 | 51 | 50 | 49 | 49 | 50 | 50 | 49 | 49 | 51 | 53 | 54 | 54 | 53 | 51 | 45 | 39 | 35 | 35 | 38 | 43 | 52 | 56 | 56 | 55 | 57 | 55 | 54 | 54 | 55 | 56 | 59 | 59 | 59 | 59 | 60 | 60 | 56 | 52 | 42 | 36 | 27 | 21 | 19 | 21 | 23 | 25 | 32 | 44 | 43 | 42 | 41 | 40 | 39 | 37 | 35 | 34 | 34 | 33 | 33 | 33 | 34 | 34 | 33 | 33 | 33 | 32 | 32 | 31 | 32 | 39 | 47 | 54 | 59 | 60 | 56 | 46 | 25 | 25 | 25 | 25 | 25 | 29 | 33 | 44 | 50 | 52 |
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 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | 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 | O3 | O3 | O3 | O3 | O3 | O3 | 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 |
NNW | NNW | NNW | NNW | NNW | E | NNE | NNE | NNE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | S | S | S | S | S | S | SSW | SSW | SSW | SSW |
2 4 | 2 4 | 3 5 | 3 5 | 3 5 | 3 5 | 3 5 | 2 4 | 2 4 | 2 4 | 2 4 | 2 4 | 2 4 | 2 4 | 2 4 | 2 4 | 2 4 | 2 4 | 3 5 | 4 6 | 4 6 | 4 6 | 4 6 | 4 7 | 6 9 | 6 9 | 6 9 | 6 9 | 6 9 | 4 7 | 4 7 | 4 6 | 2 4 | 2 4 | 2 4 | 3 5 | 3 5 | 3 6 | 3 6 | 4 6 | 4 6 | 4 6 | 4 6 | 4 6 | 4 7 | 4 7 | 5 8 | 5 8 | 6 9 | 6 10 | 6 10 | 7 11 | 6 10 | 6 10 | 6 9 | 5 8 | 5 8 | 4 7 | 4 7 | 4 7 | 4 6 | 4 6 | 4 6 | 4 6 | 3 6 | 3 6 | 3 6 | 3 6 | 3 5 | 3 5 | 4 6 | 4 7 | 4 7 | 5 8 | 5 8 | 6 9 | 5 8 | 5 8 | 5 7 | 4 7 | 4 6 | 4 6 | 4 6 | 4 7 | 5 7 | 5 8 | 5 9 | 6 9 | 6 10 | 7 10 | 7 11 | 7 12 | 8 12 | 8 13 | 8 14 | 9 14 | 9 15 |
34 1.2 | 36 2.1 | 36 2.2 | 38 3.4 | 38 3.3 | 38 3.3 | 38 3.3 | 36 2.2 | 35 1.7 | 32 0 | 30 -1.2 | 30 -1.2 | 29 -1.6 | 28 -2.3 | 27 -2.8 | 27 -2.8 | 27 -2.8 | 27 -2.8 | 26 -3.3 | 26 -3.3 | 26 -3.3 | 26 -3.3 | 27 -2.8 | 29 -1.6 | 31 -0.5 | 33 0.6 | 35 1.6 | 37 2.6 | 37 2.6 | 37 2.6 | 37 2.6 | 36 2.1 | 34 1.1 | 32 0 | 30 -1.1 | 30 -1.2 | 29 -1.6 | 29 -1.8 | 28 -2.1 | 28 -2.3 | 28 -2.3 | 28 -2.3 | 28 -2.3 | 28 -2.3 | 28 -2.3 | 28 -2.3 | 30 -1 | 33 0.4 | 35 1.7 | 37 2.8 | 39 3.9 | 41 4.9 | 41 5.1 | 42 5.3 | 42 5.5 | 41 5.2 | 41 4.8 | 40 4.5 | 40 4.4 | 40 4.3 | 39 4.2 | 39 4 | 39 3.9 | 39 3.8 | 39 3.9 | 39 4 | 39 4.2 | 40 4.3 | 40 4.4 | 40 4.5 | 42 5.4 | 43 6.3 | 45 7.3 | 47 8.2 | 48 9.1 | 50 10 | 50 9.8 | 49 9.6 | 49 9.4 | 49 9.2 | 48 9 | 48 8.8 | 48 8.8 | 48 8.8 | 48 8.8 | 48 8.8 | 48 8.8 | 48 8.8 | 48 9.1 | 49 9.4 | 49 9.7 | 50 10 | 51 10.3 | 51 10.6 | 53 11.5 | 54 12.5 | 56 13.4 |
Source: CAMS, Vaisala Xweather
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