24 hrs avg AQI
PM2.5 ✓
The current PM2.5 concentration in California is ✓below the recommended limit given by the WHO 24 hrs air quality guidelines value.
| Status | AQI | AQI-US | AQI-IN | PM2.5 | PM10 | Temp | Humid | |
|---|---|---|---|---|---|---|---|---|
| North Auburn | GOOD | 28 | 28 | 20 | 5 | 0 | 11 | 82 |
| Gridley | GOOD | 17 | 17 | 7 | 4 | 0 | 12 | 80 |
| Emeryville | GOOD | 29 | 29 | 31 | 6 | 0 | 12 | 86 |
| Madera | GOOD | 20 | 20 | 22 | 2 | 7 | 11 | 86 |
| Mayfair | GOOD | 19 | 19 | 21 | 0 | 12 | 13 | 69 |
| Topanga | GOOD | 20 | 20 | 22 | 3 | 0 | 13 | 74 |
| Modesto | GOOD | 29 | 29 | 28 | 7 | 10 | 13 | 77 |
| Lompoc | GOOD | 17 | 17 | 16 | 4 | 9 | 12 | 100 |
| Live Oak | GOOD | 19 | 19 | 20 | 4 | 0 | 10 | 90 |
| East Porterville | GOOD | 21 | 21 | 10 | 5 | 0 | 12 | 84 |
| Ojai | GOOD | 21 | 21 | 18 | 5 | 0 | 13 | 84 |
| Santa Clarita | GOOD | 29 | 29 | 12 | 7 | 0 | 12 | 77 |
| Manteca | GOOD | 6 | 6 | 6 | 1 | 6 | 10 | 88 |
| Turlock | GOOD | 23 | 23 | 25 | 4 | 7 | 12 | 77 |
| Red Bluff | GOOD | 33 | 33 | 15 | 8 | 5 | 14 | 69 |
| Atascadero | GOOD | 18 | 18 | 15 | 4 | 12 | 11 | 86 |
| Sebastopol | GOOD | 9 | 9 | 8 | 1 | 0 | 11 | 96 |
| Goleta | GOOD | 25 | 25 | 10 | 6 | 6 | 9 | 97 |
| Orange Cove | GOOD | 43 | 43 | 24 | 10 | 0 | 13 | 78 |
| Thousand Oaks | GOOD | 26 | 26 | 7 | 4 | 0 | 12 | 93 |
| Long Beach | MODERATE | 55 | 55 | 24 | 14 | 0 | 14 | 81 |
| Rosamond | MODERATE | 54 | 54 | 56 | 8 | 18 | 11 | 75 |
| Gilroy | GOOD | 32 | 32 | 35 | 1 | 0 | 13 | 89 |
| Alpine | GOOD | 27 | 27 | 29 | 4 | 9 | 12 | 86 |
| Contra Costa Centre | GOOD | 16 | 16 | 17 | 3 | 0 | 12 | 80 |
| Calexico | GOOD | 33 | 33 | 36 | 1 | 36 | 17 | 53 |
| East Los Angeles | GOOD | 29 | 29 | 30 | 7 | 12 | 14 | 77 |
| Santa Maria | GOOD | 19 | 19 | 21 | 2 | 21 | 10 | 84 |
| Salinas | GOOD | 31 | 31 | 4 | 2 | 0 | 12 | 93 |
| Bishop | MODERATE | 97 | 97 | 120 | 49 | 80 | 8 | 68 |
| Porterville | GOOD | 25 | 25 | 14 | 6 | 0 | 14 | 72 |
| San Pablo | MODERATE | 53 | 53 | 23 | 13 | 0 | 12 | 100 |
| Truckee | GOOD | 49 | 49 | 21 | 13 | 0 | -2 | 92 |
| Chula Vista | GOOD | 30 | 30 | 32 | 4 | 10 | 14 | 77 |
| Visalia | GOOD | 29 | 29 | 16 | 7 | 7 | 13 | 75 |
| Santa Barbara | GOOD | 29 | 29 | 12 | 7 | 10 | 9 | 93 |
| Hanford | GOOD | 25 | 25 | 11 | 6 | 11 | 13 | 75 |
| Ukiah | GOOD | 6 | 6 | 3 | 2 | 0 | 8 | 92 |
| San Leandro | GOOD | 27 | 27 | 29 | 6 | 0 | 12 | 90 |
| Hollister | GOOD | 21 | 21 | 8 | 2 | 8 | 13 | 83 |
| Livermore | GOOD | 31 | 31 | 33 | 3 | 0 | 9 | 90 |
| Fresno | GOOD | 19 | 19 | 20 | 3 | 14 | 13 | 77 |
| Susanville | GOOD | 45 | 45 | 20 | 12 | 0 | 10 | 74 |
| Woodlake | GOOD | 23 | 23 | 10 | 6 | 0 | 12 | 86 |
| Clovis | GOOD | 33 | 33 | 13 | 8 | 12 | 12 | 82 |
| Jurupa Valley | GOOD | 45 | 45 | 44 | 8 | 31 | 13 | 75 |
| University Of California Davis | GOOD | 33 | 33 | 19 | 8 | 0 | 9 | 100 |
| Merced | MODERATE | 59 | 59 | 27 | 16 | 0 | 11 | 86 |
| Alta Sierra | GOOD | 28 | 28 | 30 | 5 | 0 | 4 | 89 |
| Wilton | GOOD | 15 | 15 | 16 | 1 | 0 | 9 | 100 |
| San Luis Obispo | GOOD | 33 | 33 | 36 | 4 | 10 | 13 | 80 |
| Grass Valley | GOOD | 26 | 26 | 28 | 2 | 0 | 10 | 87 |
| Rancho Calaveras | GOOD | 19 | 19 | 20 | 2 | 11 | 8 | 93 |
| Tracy | GOOD | 29 | 29 | 15 | 7 | 15 | 11 | 89 |
| Signal Hill | GOOD | 19 | 19 | 20 | 4 | 20 | 14 | 81 |
| Salton City | GOOD | 25 | 25 | 10 | 6 | 0 | 17 | 53 |
| Ontario | GOOD | 25 | 25 | 10 | 6 | 0 | 13 | 74 |
| Willits | GOOD | 29 | 29 | 12 | 7 | 0 | 11 | 79 |
| Seaside | GOOD | 30 | 30 | 4 | 2 | 0 | 12 | 93 |
| Mecca | GOOD | 15 | 15 | 5 | 3 | 0 | 15 | 55 |
| Calipatria | MODERATE | 94 | 94 | 72 | 24 | 30 | 17 | 53 |
| El Cajon | GOOD | 30 | 30 | 32 | 3 | 8 | 14 | 80 |
| Ben Lomond | GOOD | 17 | 17 | 7 | 4 | 0 | 9 | 90 |
| Mendota | GOOD | 19 | 19 | 21 | 4 | 0 | 11 | 86 |
| Sacramento | GOOD | 37 | 37 | 22 | 8 | 8 | 11 | 84 |
| Upland | MODERATE | 55 | 55 | 23 | 14 | 15 | 13 | 74 |
| Galt | GOOD | 21 | 21 | 12 | 5 | 0 | 10 | 94 |
| El Rio | GOOD | 18 | 18 | 19 | 1 | 16 | 13 | 84 |
| Chico | GOOD | 28 | 28 | 30 | 4 | 7 | 13 | 69 |
| Anderson | GOOD | 19 | 19 | 20 | 1 | 0 | 14 | 72 |
| Arvin | GOOD | 29 | 29 | 12 | 7 | 0 | 7 | 93 |
| Simi Valley | GOOD | 33 | 33 | 29 | 8 | 8 | 12 | 77 |
| San Francisco | GOOD | 26 | 26 | 8 | 5 | 0 | 12 | 86 |
| King City | GOOD | 30 | 30 | 32 | 1 | 5 | 11 | 86 |
| Colusa | GOOD | 25 | 25 | 11 | 6 | 11 | 12 | 80 |
| Lake Elsinore | GOOD | 26 | 26 | 28 | 3 | 7 | 12 | 88 |
| French Valley | MODERATE | 51 | 51 | 55 | 10 | 0 | 12 | 88 |
| Crestline | GOOD | 28 | 28 | 30 | 0 | 0 | 13 | 74 |
| Huron | GOOD | 21 | 21 | 8 | 5 | 0 | 15 | 67 |
| Ridgecrest | GOOD | 26 | 26 | 11 | 6 | 4 | 12 | 47 |
| North Fair Oaks | GOOD | 19 | 19 | 21 | 3 | 0 | 11 | 82 |
| Corcoran | GOOD | 21 | 21 | 16 | 5 | 16 | 13 | 75 |
| San Rafael | GOOD | 26 | 26 | 28 | 2 | 0 | 12 | 100 |
| San Jose | GOOD | 27 | 27 | 18 | 7 | 0 | 11 | 84 |
| Roseville | GOOD | 21 | 21 | 8 | 5 | 0 | 10 | 94 |
| Magalia | GOOD | 33 | 33 | 13 | 8 | 0 | -2 | 100 |
| Nipomo | GOOD | 17 | 17 | 7 | 4 | 10 | 13 | 93 |
| Yuba City | GOOD | 25 | 25 | 19 | 6 | 10 | 11 | 80 |
| Glendora | GOOD | 25 | 25 | 27 | 1 | 15 | 12 | 74 |
| August | GOOD | 42 | 42 | 18 | 10 | 16 | 13 | 77 |
| Lincoln | GOOD | 33 | 33 | 21 | 8 | 0 | 10 | 94 |
| Vallejo | GOOD | 26 | 26 | 28 | 0 | 0 | 12 | 86 |
| Woodland | GOOD | 21 | 21 | 18 | 5 | 0 | 9 | 94 |
| Berkeley | GOOD | 33 | 33 | 32 | 8 | 0 | 12 | 83 |
| Willows | GOOD | 17 | 17 | 16 | 4 | 15 | 13 | 72 |
| Rio Vista | GOOD | 44 | 44 | 18 | 11 | 0 | 12 | 85 |
| Alameda | GOOD | 13 | 13 | 5 | 3 | 0 | 12 | 90 |
| Fillmore | GOOD | 33 | 33 | 28 | 8 | 0 | 13 | 74 |
| Mammoth Lakes | GOOD | 30 | 30 | 18 | 8 | 7 | 0 | 71 |
| Paradise | MODERATE | 59 | 59 | 27 | 16 | 0 | 13 | 72 |
| Yreka | GOOD | 43 | 43 | 22 | 13 | 0 | 7 | 86 |
| Mount Shasta | GOOD | 25 | 25 | 11 | 6 | 0 | 7 | 86 |
| Brawley | GOOD | 30 | 30 | 32 | 0 | 32 | 17 | 52 |
| Coronado | GOOD | 31 | 31 | 10 | 4 | 10 | 15 | 81 |
| Lakeport | GOOD | 8 | 8 | 4 | 2 | 0 | 11 | 86 |
| Winters | MODERATE | 62 | 62 | 34 | 20 | 0 | 9 | 100 |
| Cloverdale | GOOD | 12 | 12 | 6 | 3 | 0 | 11 | 91 |
| Crescent City | GOOD | 38 | 38 | 15 | 9 | 0 | 11 | 92 |
| Hidden Valley Lake | GOOD | 46 | 46 | 18 | 11 | 0 | 11 | 96 |
| Burbank | GOOD | 28 | 28 | 7 | 4 | 0 | 12 | 77 |
| Mckinleyville | GOOD | 32 | 32 | 17 | 10 | 0 | 9 | 95 |
| Fortuna | GOOD | 21 | 21 | 8 | 5 | 0 | 7 | 88 |
| Corning | GOOD | 37 | 37 | 15 | 9 | 0 | 13 | 72 |
| Healdsburg | MODERATE | 80 | 80 | 43 | 26 | 0 | 11 | 96 |
| Placerville | GOOD | 8 | 8 | 3 | 2 | 0 | 9 | 87 |
| Victorville | GOOD | 27 | 27 | 29 | 5 | 12 | 8 | 87 |
| Carpinteria | GOOD | 13 | 13 | 4 | 3 | 0 | 13 | 84 |
| Yosemite Lakes | GOOD | 37 | 37 | 21 | 12 | 0 | 8 | 80 |
| Oroville | GOOD | 29 | 29 | 12 | 7 | 0 | 13 | 72 |
| Lancaster | GOOD | 29 | 29 | 12 | 7 | 12 | 10 | 77 |
| Half Moon Bay | GOOD | 0 | 29 | 1 | 0 | 0 | 12 | 88 |
| Sonora | GOOD | 17 | 17 | 7 | 4 | 0 | 8 | 93 |
| Orland | GOOD | 21 | 21 | 8 | 5 | 0 | 13 | 72 |
| Fairfield | GOOD | 8 | 8 | 4 | 2 | 0 | 12 | 85 |
| Redding | GOOD | 19 | 19 | 8 | 5 | 0 | 12 | 72 |
| Shasta Lake | GOOD | 33 | 33 | 13 | 8 | 0 | 7 | 86 |
| Windsor | MODERATE | 55 | 55 | 23 | 14 | 0 | 11 | 96 |
| Fullerton | GOOD | 22 | 22 | 24 | 4 | 24 | 14 | 81 |
| Arden Arcade | GOOD | 17 | 17 | 7 | 4 | 0 | 9 | 93 |
| St Helena | POOR | 195 | 195 | 316 | 141 | 0 | 11 | 96 |
| Napa | GOOD | 17 | 17 | 7 | 4 | 0 | 12 | 86 |
| Eureka | GOOD | 50 | 50 | 20 | 12 | 0 | 9 | 97 |
| Antioch | GOOD | 25 | 25 | 11 | 6 | 0 | 11 | 85 |
| Folsom | GOOD | 21 | 21 | 23 | 2 | 0 | 10 | 94 |
Local Time
Wind speed
33 km/h
UV Index
16
Pressure
800 mb
Wear Mask
Stay Indoor
Windows
Use Purifier
Family
AQI
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Best
Oct 1, 2020
Worst
Oct 1, 2020
0
Explore an insightful air pollution data for last 24 hrs, 7 days & 1 month
24 hrs avg AQI
Quick answers to some commonly asked questions about the air pollution of California.
The real-time air quality in California is 31 (GOOD) AQI now. This was last updated 2 years ago .
The current concentration of PM2.5 in California is 8 (µg/m³). The World Health Organisation (WHO) recommends 15 µg/m³ as the threshold concentration of PM2.5 for 24 hrs mean. Currently, the concentration is 0.32 times the recommended limit.
Generally, the air quality at California starts deteriorating in late October. The winters are the worst-hit season in terms of air pollution.
You should wear a good N95 mask when you go outdoor in California until the AQI is improving upto moderate range.
Office going people should avoid personal vehicles and use public transportations or carpooling.
(i) The primary causes of outdoor air pollution are solid, liquid particles called aerosols & gase from vehicles emissions, construction activities, factories, burning stubble & fossil fuels and wildfire, etc.
(ii) Main causes of indoor air pollution are harmful gases from cooking fuels (such as wood, crop wastes, charcoal, coal and dung), damp, mould smoke, chemicals from cleaning materials, etc.
Indoor air pollution in California is as dangerous as outdoor pollution, because the air pollutants come inside the houses or buildings through doors, windows and ventilation.
In California, you must use an air purifier or fresh air machine at home or office indoor and close all the doors, windows and ventilations when the outdoor air quality index (aqi) in California is very high. Proper ventilation is highly recommended only when outdoor air quality is improving and moderate AQI range.
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