Primary Pollutant

(AQI)

 California GOOD aqi boy

California Air Quality Index (AQI)

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

Last Update: 31 May 2023, 10:05am

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


Comparative Exposure with California

24 hrs avg AQI

California

United States
30

Major Air Pollutants in California

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California carbon monoxide icon
44 (CO)

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
Alameda GOOD 46 46 18 11 0 18 60
Alta Sierra GOOD 50 50 20 12 0 22 53
Arden Arcade GOOD 29 29 12 7 0 23 44
Banning GOOD 30 30 32 3 0 31 22
Ben Lomond GOOD 13 13 5 3 0 16 67
Calexico GOOD 31 31 33 0 14 31 17
Camp Pendleton South GOOD 30 30 32 3 7 20 53
Chico GOOD 26 26 28 6 23 25 47
Corcoran GOOD 34 34 37 1 37 27 39
Crestline GOOD 23 23 25 4 0 21 38
East Los Angeles GOOD 26 26 28 6 10 20 53
East Rancho Dominguez GOOD 33 33 14 8 0 18 52
El Cajon GOOD 30 30 32 4 10 20 53
Fillmore GOOD 23 23 25 5 0 19 59
Folsom GOOD 29 29 23 7 0 23 44
Fresno GOOD 25 25 27 4 19 27 37
Fullerton GOOD 21 21 6 1 6 19 54
Goleta GOOD 20 20 22 2 10 18 56
Grass Valley GOOD 46 46 19 10 0 16 62
Gridley GOOD 17 17 7 4 0 26 42
Hanford GOOD 40 40 43 5 43 27 39
Huron GOOD 29 29 12 7 0 28 35
Lake Elsinore GOOD 25 25 27 4 11 20 52
Madera GOOD 26 26 28 0 0 24 43
Magalia GOOD 4 4 1 1 0 22 35
Mammoth Lakes GOOD 10 10 10 1 10 11 70
Mayfair GOOD 28 28 30 0 29 26 39
Mckinleyville GOOD 0 28 1 0 0 12 89
Mecca GOOD 38 38 41 0 0 32 15
Merced GOOD 26 26 28 4 0 26 39
North Fair Oaks GOOD 38 38 27 9 0 17 63
Ontario GOOD 33 33 14 8 0 18 60
Orange Cove GOOD 21 21 23 0 0 25 43
Paradise MODERATE 53 53 22 13 0 25 47
Porterville MODERATE 66 66 34 19 0 26 43
Redding GOOD 42 42 32 10 0 28 38
Ridgecrest GOOD 29 29 19 7 19 21 28
Rio Vista MODERATE 55 55 23 14 0 21 52
Roseville GOOD 29 29 24 7 15 23 44
Salinas GOOD 33 33 32 8 0 19 52
San Francisco GOOD 33 33 14 8 0 18 60
San Jose GOOD 10 10 9 1 0 20 59
San Pablo GOOD 33 33 28 8 0 19 51
San Rafael GOOD 25 25 22 6 0 17 63
Santa Barbara GOOD 29 29 24 7 9 18 58
Seaside GOOD 29 29 25 7 0 15 69
Susanville GOOD 21 21 8 5 0 22 35
Topanga MODERATE 70 70 35 21 0 19 51
Truckee GOOD 38 38 37 9 0 18 42
University Of California Davis GOOD 21 21 23 4 0 25 44
Vacaville GOOD 8 8 4 2 0 21 52
Victorville GOOD 31 31 34 6 29 26 23

Weather Conditions in California

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What are the weather and climatic conditions in California?
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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

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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

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Friday

134

AQI

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Saturday

134

AQI

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Sunday

134

AQI

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Monday

134

AQI

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Tuesday

134

AQI

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Wednesday

134

AQI

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United States - Metro Cities AQI

13
33
AQI (IN)
AQI (US)
15˚C / 48%
37
53
AQI (IN)
AQI (US)
28˚C / 48%
14
33
AQI (IN)
AQI (US)
18˚C / 60%
28
26
AQI (IN)
AQI (US)
20˚C / 53%
50
46
AQI (IN)
AQI (US)
32˚C / 30%

Historic Air Quality Graph of California

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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




Comparative Exposure with California

24 hrs avg AQI

California

United States
30


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 30 (GOOD) AQI now. This was last updated 4 hours ago .

The current concentration of PM2.5 in California is 6 (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 0.24 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

Air Quality Solutions for California

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



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 mobile app for California
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