California Air Quality Index (AQI)

Real-time PM2.5, PM10 air pollution in United States

Last Updated: 05 Nov 2024, 12:47am

GOOD

California GOOD aqi boy California GOOD aqi boy California GOOD aqi boy

Air Quality Map

California, United States


Comparative Exposure with California

1x
California
1x
United States
safe (AQI) < 50

24 hrs avg AQI

California

United States
38

Current Air Quality in California

live rank icon
California pm2.5 icon
California pm10 icon
California carbon monoxide icon
129 (CO)
California o3 ozone icon
California no2 nitrogen dioxide Icon
10 (NO2)

PM2.5 ✓

The current PM2.5 concentration in California is ✓below the recommended limit given by the WHO 24 hrs air quality guidelines value.

California - Cities Air Pollution Level

Status AQI AQI-US AQI-IN PM2.5 PM10 Temp Humid
North Auburn GOOD 46 46 20 11 20 14 37
Gridley GOOD 42 42 19 10 19 14 57
Emeryville GOOD 42 42 24 10 24 14 41
Madera MODERATE 54 54 40 14 40 12 66
Mayfair GOOD 50 50 40 12 40 12 71
Topanga GOOD 26 26 28 6 28 13 62
Modesto GOOD 38 38 37 9 37 12 44
Lompoc GOOD 17 17 18 4 18 13 56
Live Oak GOOD 38 38 22 9 22 12 49
East Porterville GOOD 40 40 37 10 37 8 41
Banning GOOD 31 31 34 6 34 8 24
Ojai GOOD 38 38 27 9 27 13 57
Santa Clarita GOOD 25 25 27 5 27 13 58
Manteca MODERATE 53 53 50 13 50 13 42
Turlock GOOD 50 50 39 12 39 13 43
Red Bluff GOOD 13 13 10 3 4 12 45
Atascadero GOOD 29 29 16 7 16 12 52
Sebastopol GOOD 50 50 23 12 23 15 49
Goleta GOOD 42 42 28 10 28 14 55
Orange Cove GOOD 35 35 25 8 25 7 42
Thousand Oaks GOOD 26 26 28 6 28 13 62
Long Beach GOOD 29 29 27 7 27 18 44
Rosamond GOOD 30 30 32 6 32 7 32
Gilroy GOOD 38 38 34 9 34 13 46
Alpine GOOD 33 33 35 8 35 10 34
Contra Costa Centre GOOD 42 42 24 10 24 14 40
Calexico MODERATE 56 56 65 14 65 13 39
East Los Angeles GOOD 25 25 22 6 22 16 46
Santa Maria GOOD 25 25 18 6 18 13 56
Salinas GOOD 38 38 27 9 27 12 51
Bishop GOOD 40 40 18 11 16 2 24
Porterville MODERATE 59 59 54 16 54 13 57
San Pablo GOOD 42 42 24 10 24 14 40
Truckee GOOD 21 21 10 5 10 7 26
Chula Vista GOOD 38 38 30 9 30 14 61
Visalia MODERATE 61 61 41 17 41 13 63
East Rancho Dominguez GOOD 29 29 27 7 27 18 44
Santa Barbara GOOD 25 25 24 6 24 14 57
Hanford MODERATE 61 61 47 17 47 14 55
Ukiah GOOD 38 38 16 9 16 14 58
San Leandro GOOD 50 50 39 12 39 14 41
Hollister GOOD 39 39 42 9 42 13 44
Livermore GOOD 50 50 39 12 39 14 41
Fresno MODERATE 53 53 33 13 33 12 71
Susanville GOOD 8 8 5 2 3 7 29
Woodlake MODERATE 52 52 33 14 33 10 54
Clovis MODERATE 55 55 41 14 41 13 63
Jurupa Valley GOOD 27 27 28 6 28 14 30
University Of California Davis MODERATE 53 53 23 13 23 16 45
Merced GOOD 50 50 54 12 54 14 49
Alta Sierra GOOD 38 38 16 9 16 11 31
Wilton GOOD 46 46 18 11 18 15 44
San Luis Obispo GOOD 33 33 17 8 17 12 54
Grass Valley GOOD 33 33 13 8 13 10 34
Rancho Calaveras GOOD 50 50 32 12 32 13 37
Tracy MODERATE 53 53 53 13 53 14 41
Signal Hill GOOD 29 29 27 7 27 18 44
Salton City MODERATE 65 65 84 17 84 13 40
Ontario GOOD 29 29 28 7 28 15 33
Willits GOOD 21 21 11 5 8 13 48
Seaside GOOD 38 38 27 9 27 12 51
Mecca MODERATE 59 59 73 15 73 11 35
Calipatria MODERATE 66 66 85 17 85 13 28
El Cajon GOOD 29 29 26 7 26 13 63
Ben Lomond GOOD 38 38 22 9 22 12 48
Mendota MODERATE 53 53 39 13 39 13 63
Sacramento GOOD 50 50 22 12 22 15 47
Coronado GOOD 42 42 38 10 38 14 62
Upland GOOD 25 25 27 6 27 14 31
Galt GOOD 50 50 22 12 22 15 41
El Rio GOOD 38 38 23 9 23 15 57
Chico GOOD 25 25 13 6 9 15 57
Oceano GOOD 21 21 20 5 20 13 55
Anderson GOOD 21 21 10 5 7 15 59
Arvin GOOD 21 21 23 4 23 7 34
Simi Valley GOOD 23 23 25 5 25 14 45
San Francisco GOOD 42 42 24 10 24 14 40
King City GOOD 38 38 18 9 18 12 54
Colusa GOOD 38 38 17 9 17 14 59
Lake Elsinore GOOD 29 29 31 6 31 13 44
French Valley GOOD 29 29 31 5 31 11 37
Crestline GOOD 18 18 19 4 19 6 15
Huron MODERATE 61 61 49 17 49 13 63
Ridgecrest GOOD 44 44 28 12 28 4 26
North Fair Oaks GOOD 38 38 22 9 22 12 49
Corcoran MODERATE 57 57 41 15 41 12 69
San Rafael GOOD 42 42 24 10 24 14 41
Camp Pendleton South GOOD 33 33 34 8 34 13 54
Bakersfield MODERATE 61 61 40 17 40 14 57
San Jose GOOD 38 38 22 9 22 12 49
Roseville GOOD 50 50 24 12 24 14 50
Magalia GOOD 17 17 8 4 8 8 32
Nipomo GOOD 18 18 19 4 19 13 56
Yuba City GOOD 50 50 20 12 18 16 42
Glendora GOOD 33 33 35 8 35 15 46
August GOOD 50 50 39 12 39 13 43
Lincoln MODERATE 53 53 23 13 23 16 42
Vallejo GOOD 42 42 24 10 24 14 41
Woodland MODERATE 53 53 23 13 23 16 42
Berkeley GOOD 42 42 24 10 24 14 41
Willows GOOD 42 42 19 10 19 14 59
Rio Vista GOOD 42 42 24 10 24 14 41
Alameda GOOD 42 42 24 10 24 14 41
Fillmore GOOD 28 28 30 6 30 14 65
Mammoth Lakes MODERATE 62 62 29 18 27 3 34
Vacaville GOOD 46 46 19 11 19 16 38
Paradise GOOD 29 29 13 7 13 10 44
Yreka GOOD 17 17 8 4 6 9 47
Mount Shasta GOOD 13 13 6 3 4 9 35
Brawley MODERATE 66 66 85 17 85 13 28
Lakeport GOOD 33 33 16 8 16 12 48
Winters GOOD 50 50 22 12 21 15 47
Cloverdale GOOD 40 40 18 10 18 14 54
Crescent City GOOD 21 21 10 5 7 15 59
Hidden Valley Lake GOOD 38 38 17 9 17 13 51
Burbank GOOD 25 25 23 6 23 15 49
Mckinleyville GOOD 19 19 9 5 7 14 55
Fortuna GOOD 21 21 10 5 7 15 59
Corning GOOD 21 21 10 5 7 15 59
Healdsburg GOOD 42 42 17 10 16 15 49
Placerville GOOD 33 33 14 8 14 10 28
Victorville GOOD 19 19 20 4 20 8 19
Carpinteria GOOD 38 38 27 9 27 15 55
Yosemite Lakes GOOD 32 32 21 8 21 7 39
Oroville GOOD 42 42 19 10 19 14 59
Lancaster GOOD 17 17 17 4 17 11 36
Half Moon Bay GOOD 38 38 22 9 22 12 49
Sonora GOOD 25 25 16 6 16 5 25
Orland GOOD 21 21 10 5 7 15 59
Fairfield GOOD 42 42 24 10 24 14 41
Redding GOOD 17 17 8 4 6 12 50
Shasta Lake GOOD 13 13 6 3 4 9 35
Windsor GOOD 42 42 17 10 16 15 49
Fullerton GOOD 30 30 32 7 32 16 42
Arden Arcade MODERATE 53 53 23 13 23 16 42
St Helena GOOD 50 50 23 12 23 15 49
Napa GOOD 46 46 19 11 19 16 38
Eureka GOOD 21 21 10 5 7 15 59
Antioch GOOD 42 42 24 10 24 14 41
Dublin GOOD 50 50 39 12 39 13 43
Folsom MODERATE 53 53 23 13 23 16 42

Weather Conditions in California

live rank icon
What are the weather and climatic conditions in California?
weather icon
Temperature icon
˚C | ˚F

Local Time

|


weather icon show1 weather icon show2 weather icon show3
Sunrise
Sunset
06:26 AM
06:26 PM
Wind Speed Icon

Wind speed

33 km/h

UV Index Icon

UV Index

16

Pressure Icon

Pressure

800 mb


Health Advice For California

live rank icon
How to protect yourself from air pollution around California, United States?
wear mask icon

Wear Mask

Required
stay indoors icon

Stay Indoor

Not Required
shut opening icon cross

Windows

Keep Close
use a purifier icon

Use Purifier

Required
family icon cross

Family

Avoid Outdoor

California Air Quality Forecast



Day

AQI

Weather

Temp.

Today

134

AQI

weather forecast Icon


Friday

134

AQI

weather forecast Icon


Saturday

134

AQI

weather forecast Icon


Sunday

134

AQI

weather forecast Icon


Monday

134

AQI

weather forecast Icon


Tuesday

134

AQI

weather forecast Icon


Wednesday

134

AQI

weather forecast Icon

United States - Metro Cities AQI

New Delhi AQI (Air Quality Index)
New York
16
38
AQI (IN)
AQI (US)
12˚C / 84%
New Delhi AQI (Air Quality Index)
Chicago
23
21
AQI (IN)
AQI (US)
18˚C / 91%
New Delhi AQI (Air Quality Index)
Austin
20
35
AQI (IN)
AQI (US)
22˚C / 74%
New Delhi AQI (Air Quality Index)
San Francisco
24
42
AQI (IN)
AQI (US)
14˚C / 40%
New Delhi AQI (Air Quality Index)
Minneapolis
10
25
AQI (IN)
AQI (US)
9˚C / 79%
New Delhi AQI (Air Quality Index)
Los Angeles
22
25
AQI (IN)
AQI (US)
16˚C / 46%
New Delhi AQI (Air Quality Index)
Houston
19
33
AQI (IN)
AQI (US)
25˚C / 88%

Historic Air Quality Graph California

live rank icon

Best

Oct 1, 2020

Worst

Oct 1, 2020

0

Explore an insightful air pollution data for last 24 hrs, 7 days & 1 month



  • Winter 2024

    Air Pollution Rank

prana air logo

Pocket
CO2 Monitor

Check if there is fresh air.

Checkout icon
prana air logo

Pocket
PM2.5 Monitor

Check real-time air quality.

Checkout icon

Comparative Exposure with California

1x
California
1x
United States
safe (AQI) < 50

24 hrs avg AQI

California

United States
38


FAQs of California's Air Quality Index

(Frequently Asked Questions)


Quick answers to some commonly asked questions about the air pollution of California.


The real-time air quality in California is 38 (GOOD) AQI now. This was last updated 3 minutes ago .

The current concentration of PM2.5 in California is 9 (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 0.36 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.

World's Most Polluted Cities & Countries AQI Ranking

Real-time top most polluted cities, and monthly & annual historic AQI ranking of cities & countries

Most Polluted Cities

Live 100 Ranking

World's Most Polluted

Cities Ranking

World's Most Polluted

Countries Ranking

Air Quality Solutions for California

Find out Prana Air's air quality monitors & solutions to fight air pollution in your city.




prana air quality monitor for California

Air Quality Monitor

Know what the quality your are breathing with Prana Air monitors (low-cost & accurate).


prana air quality sensor for California

Air Quality Sensor

Analyze the quality of air anywhere with accurate & compact gas & pm sensors.


prana air sanitizer + purifier for California

Air Purifier

Purify your indoor air & make it free from air pollution and toxins with our air purifier.


prana air car cabin filter for California

Car Cabin Filter

Make sure you breathe fresh inside your car with a highly efficient car cabin filter.


prana air n95 pollution mask for California

N95 Pollution Mask

Breathe pure air with Prana Air motorized masks of multi-layer hepa filter purification.


prana air squair indoor air quality monitor for California





Keep a track of California Air Pollution Level On “AQI Air Quality App”

Know what you breathe and the quality of air in your city and nearby locations. Real-time AQI, map, weather & fire data, health advice with insightful & analytical dashboards.

aqi air quality android app for California aqi air quality ios app for California
aqi air quality mobile app for California

AQI Map
ranking icon

Ranking
Get In Touch