Good
Primary Pollutant: O3
O3 | 82 µg/m3 (37) |
PM2.5 | 4 µg/m3 (17) |
PM10 | 9 µg/m3 (8) |
CO | 231 µg/m3 (2) |
NO2 | 1 µg/m3 (1) |
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) |
---|---|---|---|---|---|---|---|---|
Great Falls | 41 |
PM2.5 | 9.9 (41) | n/a | n/a | n/a | n/a | n/a |
Choteau | 12 |
PM2.5 | 2.9 (12) | n/a | n/a | n/a | n/a | n/a |
Source: AirNow (EPA), Montana DEQ
Hour |
AQI |
Primary |
Wind Dir |
Wind Speed ( mph kmh) |
Temp (°F°C) |
Friday, Apr 19 | Saturday, Apr 20 | Sunday, Apr 21 | Monday, Apr 22 | Tuesday, Apr 23 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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 | 4pm | 5pm |
39 | 38 | 37 | 37 | 26 | 22 | 22 | 21 | 20 | 19 | 17 | 16 | 16 | 16 | 16 | 18 | 24 | 31 | 32 | 31 | 31 | 32 | 31 | 31 | 31 | 31 | 30 | 27 | 22 | 20 | 18 | 15 | 13 | 12 | 12 | 14 | 14 | 15 | 15 | 18 | 22 | 30 | 32 | 37 | 39 | 39 | 41 | 41 | 40 | 38 | 37 | 36 | 35 | 35 | 36 | 35 | 37 | 38 | 38 | 37 | 37 | 38 | 39 | 39 | 40 | 41 | 41 | 46 | 49 | 50 | 51 | 51 | 51 | 51 | 48 | 46 | 43 | 41 | 39 | 36 | 34 | 33 | 31 | 30 | 29 | 28 | 28 | 28 | 28 | 34 | 40 | 46 | 48 | 49 | 53 | 55 | 56 |
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 | 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 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 | O3 |
NE | NE | NE | ENE | ENE | ENE | ENE | E | E | ENE | NNE | NE | N | NNE | NNE | NNE | E | ESE | ESE | SE | SE | SE | SE | SSE | SE | SE | SE | SE | SSE | SSE | SSE | SW | SW | SW | SSW | SSW | SSW | SW | SW | SW | WSW | WSW | WSW | WSW | WSW | WSW | W | W | W | W | W | W | W | W | W | W | W | W | WSW | WSW | WSW | W | W | W | W | W | W | WNW | WNW | WNW | WNW | WNW | WNW | NW | NW | NW | NW | NW | NW | W | W | W | W | W | W | WSW | WSW | WSW | WSW | WSW | WSW | SE | SE | SE | SE | SE | SE |
8 13 | 7 11 | 6 9 | 6 9 | 6 9 | 6 9 | 6 9 | 5 8 | 5 7 | 5 7 | 3 5 | 0 0 | 0 0 | 0 0 | 0 0 | 0 0 | 6 9 | 6 9 | 7 11 | 9 14 | 10 16 | 10 16 | 10 16 | 10 16 | 10 16 | 10 16 | 10 16 | 10 16 | 6 9 | 6 9 | 6 9 | 4 7 | 4 7 | 4 7 | 6 10 | 6 10 | 7 11 | 8 13 | 9 15 | 11 18 | 12 20 | 17 27 | 21 34 | 26 42 | 26 42 | 26 43 | 27 43 | 27 44 | 28 45 | 29 46 | 26 43 | 24 39 | 22 36 | 22 35 | 21 33 | 20 32 | 19 31 | 18 30 | 17 28 | 18 29 | 19 30 | 19 31 | 18 30 | 18 28 | 17 27 | 17 28 | 18 28 | 18 29 | 18 29 | 18 29 | 18 29 | 18 29 | 18 29 | 18 29 | 16 26 | 15 24 | 13 21 | 12 19 | 10 16 | 9 14 | 8 13 | 8 12 | 7 11 | 7 11 | 6 10 | 6 9 | 6 10 | 7 11 | 8 13 | 9 14 | 9 15 | 10 16 | 10 16 | 10 16 | 10 16 | 10 16 | 10 16 |
34 1.2 | 33 0.6 | 32 0 | 30 -1.2 | 26 -3.1 | 23 -5 | 22 -5.5 | 22 -5.5 | 21 -6.2 | 19 -7.3 | 19 -7.3 | 17 -8.3 | 17 -8.3 | 16 -8.8 | 17 -8.3 | 20 -6.6 | 25 -3.8 | 30 -1.2 | 34 1.4 | 37 2.7 | 40 4.7 | 44 6.7 | 47 8.1 | 49 9.5 | 49 9.7 | 50 9.8 | 48 8.8 | 45 7 | 40 4.2 | 38 3.1 | 35 1.5 | 34 1 | 33 0.7 | 32 -0.2 | 32 -0.2 | 31 -0.5 | 32 0.1 | 33 0.6 | 37 2.8 | 41 5 | 45 7.2 | 47 8.4 | 49 9.6 | 51 10.8 | 52 10.9 | 52 11.1 | 52 11.2 | 51 10.6 | 50 10.1 | 49 9.5 | 46 7.9 | 43 6.3 | 40 4.7 | 39 4.1 | 38 3.6 | 37 3 | 37 2.6 | 36 2.3 | 35 1.9 | 35 1.9 | 35 1.8 | 35 1.7 | 38 3.1 | 40 4.5 | 43 5.8 | 45 7.2 | 47 8.6 | 50 10 | 51 10.6 | 52 11.3 | 53 11.9 | 53 11.7 | 53 11.4 | 52 11.2 | 50 9.9 | 47 8.6 | 45 7.3 | 43 6 | 40 4.7 | 38 3.4 | 37 3 | 36 2.5 | 36 2 | 35 1.6 | 34 1.1 | 33 0.6 | 37 2.6 | 40 4.5 | 44 6.4 | 47 8.3 | 50 10.3 | 54 12.2 | 55 12.7 | 56 13.2 | 57 13.7 | 58 14.2 | 59 14.7 |
Source: CAMS, Vaisala Xweather
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