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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
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
Hour |
AQI |
Primary |
Wind Dir |
Wind Speed ( mph kmh) |
Temp (°F°C) |
Saturday, Apr 17 | Sunday, Apr 18 | Monday, Apr 19 | Tuesday, Apr 20 | Wednesday, Apr 21 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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 | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 38 | 31 | 37 | 44 | 44 | 44 | 44 | 44 | 44 | 37 | 31 | 34 | 38 | 42 | 42 | 42 | 41 | 41 | 42 | 42 | 42 | 42 | 42 | 41 | 33 | 37 | 44 | 44 | 49 | 49 | 49 | 49 | 49 | 37 | 35 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 44 | 49 | 49 | 69 | 69 | 69 | 69 | 69 | 49 | 44 | 37 | 44 | 44 | 49 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 37 | 37 | 37 | 44 | 44 | 49 | 49 | 49 | 49 | 44 | 37 | 37 | 37 | 37 | 37 | 44 | 44 |
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 | 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 | 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 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 |
NW | W | WNW | WNW | WNW | NW | NW | WNW | WNW | WNW | NW | NW | NW | WNW | WNW | WNW | WNW | WNW | WNW | W | WSW | SW | SW | SW | SW | WSW | SW | WSW | SW | WSW | WSW | WSW | W | WNW | NW | NW | NW | NW | NW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | SW | SW | SW | SW | SW | SW | SSW | SSW | SSW | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | W | W | W | W | W | W | WNW | WNW | WNW | WNW |
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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