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Moderate
Primary Pollutant: PM2.5
O3 | 21 µg/m3 (9) |
PM2.5 | 21 µg/m3 (69) |
PM10 | 23 µg/m3 (21) |
CO | 160 µg/m3 (2) |
NO2 | 2 µg/m3 (1) |
SO2 | 3 µg/m3 (1) |
Source: AirNow (EPA), California Air Resources Board, US EPA AirNow, OpenAQ, Placer County APCD, CAMS
Station | AQI | Primary Pollutant | PM2.5 (AQI) | PM10 (AQI) | NO2 (AQI) | OZONE (AQI) | CO (AQI) | SO2 (AQI) |
---|---|---|---|---|---|---|---|---|
Paradise | 26 |
O3 | n/a | n/a | n/a | 58 (26) | n/a | n/a |
Chico | 32 |
O3 | 6 (25) | 5 (5) | 1.504 (0) | 70 (32) | 115 (1) | n/a |
Paradise | 33 |
PM2.5 | 8 (33) | n/a | n/a | n/a | n/a | n/a |
Gridley | 70 |
PM2.5 | 21 (70) | n/a | n/a | n/a | n/a | n/a |
Colusa | 55 |
PM2.5 | 14 (55) | 9 (8) | n/a | 62 (28) | n/a | n/a |
Willows | 72 |
PM2.5 | 22 (72) | 25 (23) | n/a | 40 (18) | n/a | n/a |
Grass Valley | 28 |
O3 | n/a | n/a | n/a | 62 (28) | n/a | n/a |
Colfax | 25 |
O3 | 4 (17) | n/a | n/a | 56 (25) | n/a | n/a |
Roseville | 82 |
PM2.5 | 27 (82) | 27 (25) | 3.76 (2) | 20 (9) | n/a | n/a |
Carmichael | 74 |
PM2.5 | 23 (74) | n/a | n/a | 12 (5) | n/a | n/a |
Source: AirNow (EPA), California Air Resources Board, Northern Sierra AQMD, Placer County APCD, Sacramento Metro. AQMD
Hour |
AQI |
Primary |
Wind Dir |
Wind Speed ( mph kmh) |
Temp (°F°C) |
Friday, Feb 3 | Saturday, Feb 4 | Sunday, Feb 5 | Monday, Feb 6 | Tuesday, Feb 7 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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 | 6am | 7am | 8am | 9am |
41 | 41 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 41 | 41 | 41 | 41 | 33 | 18 | 10 | 10 | 12 | 12 | 12 | 14 | 17 | 19 | 22 | 23 | 23 | 24 | 24 | 24 | 25 | 27 | 28 | 34 | 34 | 32 | 34 | 36 | 40 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 36 | 34 | 36 | 38 | 40 | 40 | 37 | 34 | 34 | 36 | 37 | 38 | 37 | 37 | 37 | 38 | 40 | 41 | 41 | 41 | 41 | 41 |
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 | 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 |
SE | SE | SE | SE | SSE | SSE | SSE | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | NNE | NNE | NNE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SE | SE | SE | SSE | SSE | SSE | S | S | S | S | S | S | S | S | S | S | S | S | SW | SW | SW | SSE | SSE | SSE | SSE | SSE | SSE | NE | NE | NE | NE | NE | NE | N | N | N | N | N | N | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | N | N | N | N | N | N | NE | NE | NE | NE | NE | NE |
8 14 | 9 14 | 9 14 | 9 14 | 9 14 | 9 14 | 9 14 | 4 7 | 4 7 | 4 7 | 3 5 | 3 5 | 3 5 | 4 7 | 4 7 | 4 7 | 4 7 | 4 7 | 4 7 | 4 7 | 4 7 | 4 7 | 4 7 | 4 7 | 4 7 | 4 7 | 4 7 | 4 7 | 8 13 | 8 13 | 8 13 | 10 15 | 10 15 | 10 15 | 16 26 | 16 26 | 19 31 | 22 36 | 21 34 | 19 31 | 18 29 | 17 27 | 15 25 | 14 23 | 14 22 | 14 22 | 13 22 | 13 22 | 13 22 | 13 22 | 12 20 | 11 18 | 10 16 | 10 16 | 10 16 | 10 16 | 9 15 | 9 14 | 8 13 | 8 12 | 7 11 | 6 10 | 6 10 | 6 10 | 6 10 | 6 9 | 6 9 | 6 9 | 6 10 | 7 11 | 8 12 | 8 14 | 9 15 | 10 16 | 10 17 | 11 18 | 12 19 | 12 20 | 13 21 | 13 22 | 12 20 | 12 19 | 11 17 | 10 16 | 9 14 | 8 13 | 7 12 | 7 11 | 7 11 | 6 10 | 6 10 | 6 9 | 6 9 | 6 10 | 6 10 | 6 10 | 7 11 |
45 7 | 47 8 | 48 9 | 50 10 | 52 11 | 53 12 | 53 12 | 55 13 | 53 12 | 52 11 | 50 10 | 48 9 | 47 8 | 47 8 | 46 8 | 46 8 | 45 7 | 44 7 | 44 7 | 44 7 | 43 6 | 44 7 | 44 7 | 44 7 | 46 8 | 49 10 | 52 11 | 54 12 | 55 13 | 56 14 | 57 14 | 57 14 | 56 13 | 54 12 | 53 11 | 53 11 | 53 12 | 53 12 | 52 11 | 51 11 | 51 10 | 50 10 | 49 10 | 49 9 | 48 9 | 48 9 | 47 8 | 48 9 | 50 10 | 51 11 | 52 11 | 53 12 | 55 13 | 55 13 | 55 13 | 55 13 | 53 12 | 52 11 | 50 10 | 48 9 | 46 8 | 45 7 | 44 7 | 43 6 | 42 6 | 41 5 | 40 5 | 39 4 | 41 5 | 42 6 | 43 6 | 45 7 | 46 8 | 47 8 | 49 10 | 51 11 | 53 12 | 55 13 | 57 14 | 59 15 | 57 14 | 54 12 | 52 11 | 49 10 | 47 8 | 44 7 | 43 6 | 42 6 | 41 5 | 40 4 | 38 4 | 37 3 | 39 4 | 41 5 | 42 6 | 44 7 | 46 8 |
Source: CAMS
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