California Air Quality Index (AQI)

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

Last Updated: 04 Nov 2024, 10:47pm

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
33

Major Air Pollutants in California

live rank icon
California pm2.5 icon
California pm10 icon
California carbon monoxide icon
121 (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 38 38 18 9 18 15 32
Gridley GOOD 21 21 20 5 20 16 50
Emeryville GOOD 38 38 26 9 26 17 36
Madera MODERATE 56 56 50 14 50 16 50
Mayfair MODERATE 55 55 51 14 51 16 48
Topanga GOOD 33 33 30 8 30 14 61
Modesto GOOD 38 38 33 9 33 16 37
Lompoc GOOD 17 17 17 4 17 14 52
Live Oak GOOD 29 29 20 7 20 15 42
East Porterville GOOD 40 40 32 10 32 10 37
Banning GOOD 28 28 30 4 30 10 19
Ojai GOOD 33 33 28 8 28 13 61
Santa Clarita GOOD 29 29 29 7 29 13 58
Manteca GOOD 42 42 38 10 38 16 36
Turlock GOOD 33 33 35 8 35 16 37
Red Bluff GOOD 12 12 13 3 13 13 41
Atascadero GOOD 29 29 16 7 16 14 44
Sebastopol GOOD 33 33 22 8 22 18 42
Goleta GOOD 42 42 27 10 27 14 63
Orange Cove GOOD 36 36 30 9 30 10 31
Thousand Oaks GOOD 33 33 30 8 30 14 61
Long Beach GOOD 33 33 32 8 32 19 40
Rosamond GOOD 33 33 29 8 29 8 29
Gilroy GOOD 38 38 23 9 23 15 41
Alpine GOOD 23 23 25 5 25 11 43
Contra Costa Centre GOOD 38 38 26 9 26 17 36
Calexico MODERATE 59 59 71 13 71 15 32
East Los Angeles GOOD 29 29 31 5 31 17 42
Santa Maria GOOD 29 29 19 7 19 13 54
Salinas GOOD 33 33 23 8 20 14 46
Bishop GOOD 34 34 18 10 18 3 20
Porterville MODERATE 59 59 49 16 49 15 53
San Pablo GOOD 38 38 26 9 26 17 36
Truckee GOOD 21 21 10 5 10 7 24
Chula Vista GOOD 29 29 31 7 31 15 55
Visalia MODERATE 55 55 48 14 48 15 53
East Rancho Dominguez GOOD 33 33 32 8 32 19 40
Santa Barbara GOOD 25 25 26 6 26 15 65
Hanford MODERATE 55 55 52 14 52 16 46
Ukiah GOOD 21 21 21 5 21 16 52
San Leandro GOOD 33 33 35 8 35 16 37
Hollister GOOD 33 33 23 8 12 14 47
Livermore GOOD 33 33 35 8 35 16 37
Fresno MODERATE 55 55 47 14 47 15 55
Susanville GOOD 6 6 6 1 6 8 27
Woodlake GOOD 46 46 39 11 39 12 46
Clovis MODERATE 59 59 53 16 53 16 54
Jurupa Valley GOOD 26 26 28 4 28 16 27
University Of California Davis GOOD 46 46 21 11 21 18 38
Merced MODERATE 53 53 50 13 50 17 40
Alta Sierra GOOD 33 33 15 8 15 13 27
Wilton MODERATE 55 55 23 14 23 16 45
San Luis Obispo GOOD 33 33 18 8 18 15 44
Grass Valley GOOD 21 21 16 5 16 11 31
Rancho Calaveras GOOD 42 42 34 10 34 15 33
Tracy GOOD 46 46 44 11 44 17 34
Signal Hill GOOD 33 33 32 8 32 19 40
Salton City MODERATE 68 68 90 17 90 15 35
Ontario GOOD 28 28 30 4 30 17 28
Willits GOOD 13 13 14 3 14 14 46
Seaside GOOD 33 33 23 8 20 14 46
Mecca MODERATE 62 62 78 15 78 13 30
Calipatria MODERATE 73 73 100 18 100 17 25
El Cajon GOOD 26 26 27 6 27 14 54
Ben Lomond GOOD 29 29 20 7 20 15 42
Mendota MODERATE 55 55 51 14 51 16 48
Sacramento GOOD 46 46 20 11 20 16 44
Coronado GOOD 30 30 32 7 32 15 56
Upland GOOD 27 27 29 4 29 16 27
Galt GOOD 50 50 28 12 28 18 36
El Rio GOOD 26 26 28 6 28 16 62
Chico GOOD 17 17 16 4 16 16 54
Oceano GOOD 29 29 22 7 22 14 54
Anderson GOOD 13 13 12 3 12 17 54
Arvin GOOD 21 21 19 5 19 7 33
Simi Valley GOOD 29 29 29 7 29 15 46
San Francisco GOOD 38 38 26 9 26 17 36
King City GOOD 42 42 17 10 16 15 40
Colusa GOOD 17 17 16 4 16 17 50
Lake Elsinore GOOD 27 27 29 4 29 15 39
French Valley GOOD 23 23 25 3 25 13 34
Crestline GOOD 19 19 21 3 21 7 12
Huron MODERATE 59 59 55 16 55 16 52
Ridgecrest GOOD 42 42 28 12 28 5 22
North Fair Oaks GOOD 29 29 20 7 20 15 42
Corcoran MODERATE 57 57 48 15 48 16 52
San Rafael GOOD 38 38 26 9 26 17 36
Camp Pendleton South GOOD 26 26 28 6 28 15 46
Bakersfield MODERATE 55 55 45 14 45 16 57
San Jose GOOD 29 29 20 7 20 15 42
Roseville GOOD 46 46 18 11 18 16 45
Magalia GOOD 8 8 8 2 7 9 27
Nipomo GOOD 21 21 20 5 20 13 58
Yuba City GOOD 46 46 27 11 27 18 42
Glendora GOOD 29 29 31 6 31 17 39
August GOOD 33 33 35 8 35 16 37
Lincoln GOOD 46 46 21 11 21 18 38
Vallejo GOOD 38 38 26 9 26 17 36
Woodland GOOD 46 46 21 11 21 18 38
Berkeley GOOD 38 38 26 9 26 17 36
Willows GOOD 19 19 21 4 21 17 50
Rio Vista GOOD 38 38 26 9 26 17 36
Alameda GOOD 38 38 26 9 26 17 36
Fillmore GOOD 33 33 32 8 32 15 64
Mammoth Lakes GOOD 50 50 26 14 26 4 22
Vacaville GOOD 46 46 23 11 23 17 38
Paradise GOOD 13 13 12 3 12 13 37
Yreka GOOD 11 11 9 3 9 11 44
Mount Shasta GOOD 8 8 7 2 7 10 32
Brawley MODERATE 73 73 100 18 100 17 25
Lakeport GOOD 17 17 17 4 17 14 42
Winters GOOD 37 37 24 9 24 18 42
Cloverdale GOOD 19 19 19 4 19 15 48
Crescent City GOOD 13 13 12 3 12 17 54
Hidden Valley Lake GOOD 17 17 18 4 18 14 45
Burbank GOOD 33 33 31 8 31 15 47
Mckinleyville GOOD 13 13 11 3 11 16 51
Fortuna GOOD 13 13 12 3 12 17 54
Corning GOOD 13 13 12 3 12 17 54
Healdsburg GOOD 38 38 23 9 23 17 46
Placerville GOOD 36 36 16 8 15 12 28
Victorville GOOD 17 17 18 2 18 10 16
Carpinteria GOOD 29 29 26 7 26 16 64
Yosemite Lakes GOOD 34 34 26 8 26 9 29
Oroville GOOD 19 19 21 4 21 17 50
Lancaster GOOD 25 25 23 6 23 11 34
Half Moon Bay GOOD 29 29 20 7 20 15 42
Sonora GOOD 25 25 14 6 14 6 23
Orland GOOD 13 13 12 3 12 17 54
Fairfield GOOD 38 38 26 9 26 17 36
Redding GOOD 10 10 10 2 10 14 46
Shasta Lake GOOD 8 8 7 2 7 10 32
Windsor GOOD 38 38 23 9 23 17 46
Fullerton GOOD 31 31 34 7 34 18 37
Arden Arcade GOOD 46 46 21 11 21 18 38
St Helena GOOD 33 33 22 8 22 18 42
Napa GOOD 46 46 23 11 23 17 38
Eureka GOOD 13 13 12 3 12 17 54
Antioch GOOD 38 38 26 9 26 17 36
Dublin GOOD 33 33 35 8 35 16 37
Folsom GOOD 46 46 21 11 21 18 38

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 cross

Wear Mask

Not Required
stay indoors icon cross

Stay Indoor

Not Required
shut opening icon

Windows

Keep Close
use a purifier icon

Use Purifier

Not Required
Family Icon

Family

Allow 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
13
26
AQI (IN)
AQI (US)
11˚C / 86%
New Delhi AQI (Air Quality Index)
Chicago
20
19
AQI (IN)
AQI (US)
18˚C / 90%
New Delhi AQI (Air Quality Index)
Austin
20
35
AQI (IN)
AQI (US)
23˚C / 69%
New Delhi AQI (Air Quality Index)
San Francisco
26
38
AQI (IN)
AQI (US)
17˚C / 36%
New Delhi AQI (Air Quality Index)
Minneapolis
10
25
AQI (IN)
AQI (US)
9˚C / 81%
New Delhi AQI (Air Quality Index)
Los Angeles
31
29
AQI (IN)
AQI (US)
17˚C / 42%
New Delhi AQI (Air Quality Index)
Houston
21
33
AQI (IN)
AQI (US)
26˚C / 81%

Historic Air Quality Graph of 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
33


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 33 (GOOD) AQI now. This was last updated 13 minutes 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.

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