Good
Primary Pollutant: O3
O3 | 55 µg/m3 (25) |
PM2.5 | 6 µg/m3 (23) |
PM10 | 12 µg/m3 (11) |
CO | 408 µg/m3 (4) |
NO2 | 30 µg/m3 (15) |
SO2 | 4 µg/m3 (2) |
Source: CAMS, Vaisala Xweather
Station | AQI | Primary Pollutant | PM2.5 (AQI) | PM10 (AQI) | NO2 (AQI) | OZONE (AQI) | CO (AQI) | SO2 (AQI) |
---|---|---|---|---|---|---|---|---|
Rose Hill | 43 |
PM2.5 | 10 (43) | 17 (15) | n/a | n/a | n/a | 1.572 (1) |
Ashburn | 49 |
PM2.5 | 12 (49) | 16 (15) | 8.084 (4) | n/a | n/a | n/a |
Arlington | 3 |
NO2 | n/a | n/a | 6.58 (3) | n/a | 115 (1) | n/a |
Washington D.C. | 55 |
PM2.5 | 14 (55) | n/a | n/a | n/a | n/a | n/a |
Washington D.C. | 45 |
PM2.5 | 11 (45) | 14 (13) | 9.588 (5) | 47 (21) | 344 (3) | n/a |
Fairmount Heights | 33 |
PM2.5 | 8 (33) | n/a | 5.828 (3) | 41 (19) | n/a | n/a |
Takoma Park | 20 |
O3 | n/a | n/a | 7.896 (4) | 45 (20) | n/a | n/a |
Fairmount Heights | 47 |
PM2.5 | 11 (47) | n/a | 14 (7) | n/a | 229 (2) | n/a |
Cambridge | 30 |
O3 | 0 (0) | n/a | n/a | 67 (30) | n/a | n/a |
Essex | 25 |
O3 | n/a | n/a | 8.836 (4) | 55 (25) | 115 (1) | n/a |
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) |
Wednesday, Dec 11 | Thursday, Dec 12 | Friday, Dec 13 | Saturday, Dec 14 | Sunday, Dec 15 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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 | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm | 12am | 1am | 2am | 3am | 4am | 5am |
59 | 59 | 57 | 55 | 53 | 28 | 27 | 27 | 28 | 26 | 25 | 27 | 32 | 35 | 38 | 50 | 51 | 42 | 24 | 23 | 25 | 25 | 24 | 23 | 22 | 21 | 25 | 22 | 22 | 25 | 27 | 28 | 31 | 32 | 32 | 31 | 29 | 27 | 29 | 29 | 33 | 36 | 36 | 37 | 37 | 37 | 39 | 41 | 45 | 49 | 53 | 58 | 60 | 59 | 51 | 49 | 41 | 37 | 37 | 42 | 52 | 64 | 68 | 50 | 51 | 51 | 52 | 53 | 53 | 38 | 40 | 42 | 42 | 42 | 46 | 47 | 42 | 38 | 33 | 29 | 30 | 33 | 33 | 33 | 43 | 47 | 50 | 47 | 46 | 43 | 39 | 35 | 35 | 35 | 35 | 35 | 36 |
O3 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | O3 | O3 | O3 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | NO2 | NO2 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | PM2.5 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | PM2.5 | PM2.5 | 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 | 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 | O3 | O3 | O3 | O3 | O3 | O3 |
S | S | S | S | S | S | S | SSW | SW | WSW | W | WNW | WNW | WNW | WNW | WNW | WNW | W | W | W | W | W | WSW | WSW | WSW | WSW | WSW | WSW | W | W | W | W | W | W | W | W | W | W | WNW | WNW | WNW | WNW | WNW | WNW | NW | NW | NW | WNW | WNW | WNW | WNW | WNW | WNW | NE | NE | NE | SE | SE | SE | ESE | ESE | ESE | ENE | ENE | ENE | ENE | ENE | ENE | E | E | E | E | E | E | ENE | ENE | ENE | ENE | ENE | ENE | E | E | E | E | E | E | E | E | E | E | E | E | ENE | ENE | ENE | ENE | ENE |
9 14 | 9 15 | 10 16 | 11 17 | 11 18 | 12 20 | 13 22 | 15 24 | 17 27 | 19 30 | 22 36 | 23 37 | 24 39 | 25 40 | 25 40 | 25 40 | 24 38 | 23 37 | 22 35 | 20 32 | 18 29 | 15 25 | 12 20 | 10 16 | 9 14 | 9 15 | 10 17 | 13 20 | 15 24 | 17 27 | 18 29 | 18 29 | 17 27 | 16 25 | 14 23 | 12 20 | 11 18 | 10 16 | 8 13 | 7 12 | 6 10 | 6 9 | 5 8 | 5 8 | 4 7 | 5 7 | 5 8 | 5 8 | 5 8 | 5 7 | 4 7 | 4 7 | 4 6 | 4 6 | 4 6 | 4 7 | 4 7 | 4 7 | 4 7 | 4 7 | 5 8 | 5 8 | 6 9 | 5 8 | 4 7 | 4 6 | 3 5 | 3 5 | 2 4 | 2 4 | 3 4 | 3 5 | 3 5 | 3 5 | 3 5 | 4 6 | 4 7 | 5 8 | 6 9 | 6 10 | 7 11 | 6 10 | 6 10 | 6 9 | 5 8 | 5 8 | 4 7 | 4 7 | 4 7 | 4 7 | 4 7 | 4 7 | 4 7 | 5 7 | 5 8 | 5 8 | 5 8 |
55 13 | 56 13.4 | 57 13.8 | 58 14.5 | 61 15.9 | 63 17.1 | 62 16.8 | 62 16.8 | 62 16.6 | 59 15.2 | 55 12.7 | 51 10.8 | 48 8.8 | 44 6.8 | 42 5.3 | 40 4.5 | 38 3.5 | 37 2.7 | 36 2.2 | 35 1.7 | 34 1.2 | 33 0.6 | 33 0.6 | 33 0.4 | 33 0.4 | 31 -0.4 | 33 0.3 | 33 0.6 | 36 2.2 | 38 3.4 | 39 3.8 | 39 4.1 | 39 4.1 | 39 4.1 | 40 4.5 | 39 3.8 | 37 3 | 36 2 | 34 0.9 | 32 0.1 | 31 -0.8 | 29 -1.6 | 28 -2 | 28 -2.4 | 27 -2.8 | 27 -2.9 | 26 -3.1 | 26 -3.2 | 26 -3.1 | 26 -3.1 | 27 -3 | 29 -1.4 | 32 0.1 | 35 1.7 | 37 2.7 | 39 3.7 | 41 4.7 | 41 4.7 | 41 4.7 | 41 4.7 | 39 3.7 | 37 2.7 | 35 1.7 | 34 1.2 | 33 0.8 | 33 0.3 | 32 -0.1 | 31 -0.6 | 30 -1 | 30 -1.1 | 30 -1.2 | 30 -1.3 | 29 -1.4 | 29 -1.5 | 29 -1.6 | 31 -0.4 | 33 0.8 | 36 2 | 38 3.2 | 40 4.4 | 42 5.6 | 41 5.2 | 41 4.9 | 40 4.5 | 39 4.1 | 39 3.8 | 38 3.4 | 38 3.3 | 38 3.2 | 37 3.1 | 37 2.9 | 37 2.8 | 37 2.7 | 37 2.8 | 37 2.9 | 37 3.1 | 38 3.2 |
Source: CAMS, Vaisala Xweather
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