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California Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2 minutes ago (Local Time)

location image
Live AQI
44
Air Quality is
Good
pm10 :  25 µg/m³
PM2.5 :  8 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi good level in California
sunny

27 °C

Sunny
Humidity
Humidity35 %
Wind Speed
Wind Speed9 km/h
UV Index
UV Index7
Last Updated: 2 minutes ago (Local Time)
Map

California

Major Air Pollutants

California

PM2.5's Icon

Particulate Matter(PM2.5)

8µg/m³

PM10's Icon

Particulate Matter(PM10)

25µg/m³

CO's Icon

Carbon Monoxide(CO)

77ppb

SO2's Icon

Sulfur Dioxide(SO2)

1ppb

NO2's Icon

Nitrogen Dioxide(NO2)

5ppb

O3's Icon

Ozone(O3)

29ppb

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AQI Graph

Historical Air Quality Data

California

24 Hours
AQI
California

Want air quality data?

Download 2024 Annual Data

World Air Quality Report

Globe

California's Cities

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Alameda
Moderate
54
11
21
16
74
Alpine
Good
32
6
21
23
55
Alta Sierra
Good
27
5
24
23
44
Anaheim
Good
47
8
20
21
62
Anderson
Good
36
6
18
24
42
Antioch
Moderate
53
10
21
17
72
Arden Arcade
Moderate
53
10
21
21
59
Arroyo Grande
Good
21
4
8
15
90
Arvin
Good
36
6
26
22
48
Atascadero
Good
20
4
14
24
52
Auburn
Good
33
6
18
19
66
August
Moderate
53
10
23
17
60
Bakersfield
Good
46
8
32
27
36
Banning
Moderate
52
10
38
25
44
Barstow
Good
39
7
26
25
44
Ben Lomond
Good
47
8
32
25
42
Benicia
Moderate
52
9
20
15
74
Berkeley
Moderate
52
10
19
15
78
Big Pine
Moderate
53
10
29
22
29
Bishop
Moderate
75
22
50
24
27
Blythe
Moderate
53
10
32
22
60
Brawley
Moderate
58
13
54
32
34
Bromela
Good
21
4
8
15
90
Burbank
Moderate
53
10
29
23
61
Calexico
Good
42
5
46
31
38
Calipatria
Moderate
56
11
49
32
33
Camp Pendleton South
Good
46
8
23
24
67
Capitan
Good
34
6
24
24
49
Carmel Valley
Good
36
7
22
21
51
Carpinteria
Good
42
8
19
20
72
Carson
Moderate
53
10
20
21
72
Cartago
Good
33
6
26
20
32
Chester
Good
24
4
19
15
42
Chico
Good
41
7
20
25
49
Chiriaco Summit
Good
46
8
34
28
30
Chula Vista
Moderate
76
22
49
22
68
Cloverdale
Good
32
6
18
22
51
Clovis
Moderate
52
10
38
28
33
Colfax
Good
36
6
29
23
41
Colusa
Good
44
8
19
22
57
Compton
Moderate
56
12
21
20
71
Concord
Moderate
53
10
19
20
60
Contra Costa Centre
Moderate
52
10
19
19
61
Corcoran
Good
41
8
24
26
48
Corning
Good
33
6
19
24
44
Coronado
Moderate
52
10
26
23
70
Crescent City
Good
36
6
22
21
56
Crestline
Good
34
6
28
22
42
Dublin
Good
34
6
27
26
42
East Porterville
Good
44
8
27
24
40
East Rancho Dominguez
Good
43
8
22
21
72
Eastern Goleta Valley
Good
42
8
27
25
41
Edison
Good
43
8
29
24
54
El Cajon
Moderate
55
11
29
22
65
El Centro
Good
43
7
46
31
43
El Rio
Moderate
53
10
21
18
80
Elk Grove
Moderate
52
10
22
21
56
Emeryville
Moderate
53
10
19
15
78
Eureka
Good
38
7
24
22
54
Fairfield
Moderate
53
10
18
18
67
Felton
Good
47
8
32
25
42
Fillmore
Good
40
7
28
21
72
Florence Graham
Moderate
52
10
22
21
65
Folsom
Good
42
8
22
24
46
Fontana
Moderate
56
12
30
27
38
Foresta
Good
41
7
25
22
34
Fortuna
Good
35
6
19
22
50
French Valley
Moderate
52
10
34
26
44
Fresno
Moderate
54
11
39
28
37
Fullerton
Good
43
8
21
22
50
Galt
Good
50
9
23
20
62
Gardena
Moderate
53
10
22
20
72
Gilroy
Moderate
54
10
22
20
69
Glendora
Good
48
8
28
24
56
Goleta
Good
30
5
8
18
86
Grass Valley
Good
40
7
23
22
41
Gridley
Moderate
52
10
21
23
53
Half Moon Bay
Good
44
8
18
19
68
Hanford
Moderate
54
11
42
27
40
Hayward
Good
35
6
20
24
48
Healdsburg
Good
41
7
19
20
61
Hesperia
Good
39
7
24
22
30
Hidden Valley Lake
Good
29
5
18
22
53
Hollister
Good
44
8
22
22
55
Huntington Park
Moderate
53
10
21
20
65
Huron
Good
42
8
31
29
28
Indio
Moderate
55
11
45
29
46
Jackson
Good
33
6
20
23
50
Jurupa Valley
Moderate
53
10
26
24
56
Keeler
Good
36
6
22
20
32
Kernville
Good
42
8
29
25
38
King City
Good
44
8
28
27
28
La Habra
Good
44
8
22
21
61
Lake Elsinore
Moderate
52
10
24
26
46
Lakeport
Good
32
6
18
21
51
Lancaster
Good
36
6
22
25
39
Lebec
Good
32
6
26
20
34
Lee Vining
Good
30
5
15
19
45
Lincoln
Good
44
8
20
22
54
Live Oak
Good
42
7
20
17
78
Live Oak Springs
Good
36
6
19
25
39
Livermore
Good
43
8
27
23
48
Lomita
Moderate
53
10
21
21
72
Lompoc
Good
22
4
8
17
84
Lone Pine
Good
40
8
22
22
32
Long Beach
Good
50
9
24
20
75
Los Angeles
Moderate
54
11
24
21
65
Los Gatos
Good
47
8
32
25
42
Lucerne Valley
Good
38
7
24
22
28
Madera
Good
46
8
28
26
40
Magalia
Good
29
5
25
16
34
Mammoth Lakes
Good
37
8
22
20
36
Manteca
Good
44
8
22
20
58
Maricopa
Good
39
7
23
24
55
Mayfair
Moderate
57
12
46
28
38
Mckinleyville
Good
35
6
22
21
51
Mecca
Moderate
56
12
60
32
32
Mendota
Good
34
6
22
24
44
Merced
Good
43
8
22
23
50
Miramonte
Moderate
69
19
42
25
33
Mock
Good
33
6
20
20
30
Modesto
Good
42
8
22
22
52
Mojave
Good
33
6
23
25
38
Mono County
Moderate
51
9
20
22
39
Morro Bay
Good
34
6
20
25
39
Mount Shasta
Good
29
5
27
17
41
Napa
Moderate
52
9
19
17
70
Nipomo
Good
24
4
10
18
73
North Auburn
Good
33
6
18
19
66
North Fair Oaks
Good
44
8
19
19
70
North Shore
Moderate
56
12
59
32
33
Oakland
Moderate
54
11
20
16
74
Oakley
Moderate
53
10
22
17
69
Oceano
Good
21
4
8
15
90
Ojai
Good
36
6
24
26
48
Olancha
Good
33
6
26
21
33
Ontario
Good
50
9
28
24
54
Orange Cove
Moderate
54
11
30
23
46
Orcutt
Good
24
4
15
24
42
Orland
Good
39
7
20
24
46
Oroville
Good
40
7
23
24
50
Paicines
Good
36
6
20
23
51
Palm Springs
Moderate
56
12
32
22
66
Paradise
Good
38
7
24
18
62
Park Village
Good
47
8
31
27
38
Parlier
Good
50
9
37
28
32
Pasadena
Moderate
52
10
29
24
55
Paso Robles
Good
33
6
27
24
53
Pico Rivera
Good
50
9
20
20
66
Piru
Good
45
8
28
21
66
Placerville
Good
36
6
27
22
50
Pleasanton
Good
34
6
27
26
42
Poleta
Moderate
54
11
31
23
29
Pomona
Moderate
52
9
29
23
58
Porterville
Good
36
6
28
28
40
Portola
Good
31
6
22
13
35
Quincy
Good
29
5
25
16
34
Rancho Calaveras
Good
26
5
15
25
48
Red Bluff
Good
31
5
20
21
47
Redding
Good
33
6
20
22
44
Redlands
Moderate
52
10
33
25
44
Redwood City
Good
46
8
20
18
70
Ridgecrest
Good
39
7
24
23
36
Rio Vista
Moderate
53
10
21
17
73
Riverside
Moderate
54
10
26
24
56
Rosamond
Good
37
7
24
25
38
Roseville
Good
49
9
21
25
46
Sacramento
Moderate
54
11
26
19
63
Salinas
Moderate
54
11
21
18
74
Salton City
Moderate
52
10
50
32
34
San Andreas
Good
30
5
18
24
50
San Bernardino
Good
48
9
29
27
41
San Diego
Moderate
62
15
33
24
64
San Francisco
Moderate
54
11
19
14
70
San Jose
Moderate
54
11
22
19
65
San Juan Bautista
Moderate
51
9
22
22
55
San Leandro
Moderate
54
11
20
15
74
San Luis Obispo
Good
22
4
9
20
64
San Martin
Moderate
52
10
31
23
51
San Pablo
Good
36
7
16
14
83
San Rafael
Good
38
6
16
16
74
Santa Barbara
Good
33
6
15
18
83
Santa Clarita
Moderate
54
10
28
24
43
Santa Cruz
Good
44
8
21
18
73
Santa Margarita
Good
44
8
32
25
47
Santa Maria
Good
24
4
16
20
48
Santa Ynez
Good
34
6
27
24
57
Searles Valley
Good
41
7
26
24
53
Seaside
Good
36
7
22
21
51
Sebastopol
Good
39
7
19
18
66
Shafter
Good
42
8
29
29
31
Shandon
Good
39
7
29
24
45
Shasta Lake
Good
25
5
18
20
45
Signal Hill
Moderate
51
9
26
21
72
Simi Valley
Moderate
52
10
23
24
51
Sonora
Good
47
8
28
20
46
South Gate
Moderate
53
10
21
20
69
South Lake Tahoe
Good
38
7
19
21
39
Springville
Good
42
8
25
24
46
St Helena
Good
37
7
19
22
50
Stockton
Moderate
51
9
20
18
64
Summertown
Good
27
5
24
19
38
Susanville
Good
30
5
20
16
44
Tahoe City
Good
41
7
20
21
35
Temecula
Moderate
52
10
33
28
39
Thousand Oaks
Moderate
54
10
26
23
58
Three Rivers
Moderate
53
10
31
23
51
Topanga
Moderate
57
12
29
23
56
Tracy
Good
44
8
20
24
52
Truckee
Good
32
6
19
20
32
Turlock
Good
44
8
21
22
52
Ukiah
Good
28
5
15
20
52
University Of California Davis
Moderate
56
12
20
20
60
Upland
Moderate
53
10
29
25
41
Vacaville
Moderate
52
10
19
21
55
Vallejo
Moderate
52
10
18
16
75
Vandenberg Village
Good
33
6
21
24
53
Victorville
Good
40
7
35
24
36
Visalia
Good
48
8
33
28
32
Weaverville
Good
32
6
20
18
58
Westmorland
Moderate
57
12
49
32
34
Willits
Good
32
6
17
20
56
Willows
Good
39
7
21
24
51
Wilton
Moderate
53
10
21
24
47
Windsor
Good
37
7
17
19
64
Winters
Good
49
9
20
23
50
Woodlake
Good
44
8
28
24
50
Woodland
Moderate
58
13
20
21
60
Yosemite Lakes
Moderate
52
10
32
23
40
Yreka
Good
30
5
26
18
49
Yuba City
Good
48
8
24
22
57
Yucca Valley
Good
38
7
23
25
34

United States's Metro Cities

Air Quality Index

East Chicago City AQI

East Chicago

25

temp.17°C
hum.38%
Los Angeles City AQI

Los Angeles

54

temp.25°C
hum.54%
Minneapolis City AQI

Minneapolis

55

temp.23°C
hum.48%
Nashville City AQI

Nashville

41

temp.27°C
hum.44%
New Orleans City AQI

New Orleans

222

temp.30°C
hum.50%
New York City City AQI

New York City

16

temp.18°C
hum.38%
San Francisco City AQI

San Francisco

54

temp.14°C
hum.78%
Port Washington City AQI

Port Washington

16

temp.19°C
hum.35%

Health Advice For People Living In

California

0Cigarettes per day

Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.

Source:

Berkeley Earth

Solutions for Current AQI

  • Air Purifier
    Air PurifierTurn Off
  • Car Filter
    Car FilterAdvisable
  • N95 Mask
    N95 MaskAdvisable
  • Stay Indoor
    Stay IndoorAdvisable

As per the current AQI, turn off the air purifier.

Prevent Health Problems: Understand Your Risks

California

  • asthma due to air pollution in CaliforniaAsthma
  • heart due to air pollution in CaliforniaHeart Issues
  • allergy due to air pollution in CaliforniaAllergies
  • sinus due to air pollution in CaliforniaSinus
  • flu due to air pollution in CaliforniaCold/Flu
  • copd due to air pollution in CaliforniaChronic (COPD)
asthma due to air pollution in California

Low Chances of Asthma

Asthma

Risk of Asthma symptoms is Low when AQI is Good (0-50)

Mild symptoms such as slight wheezing, occasional cough, and minor shortness of breath

Do's :

  • Keep track of air quality to plan outdoor activities safely.

  • Drink water to keep airways moist and reduce irritation.

  • Include non-allergenic fruits and vegetables that support overall lung health, like apples, pears, and spinach.

Don'ts :

  • Skip medications that is prescribed by your doctor.

  • Engage in outdoor activities in early morning during high pollen hours.

Most Polluted Cities 2025

United States

Analyze the real-time most air polluted cities in the country.

Most Polluted Cities Live Ranking 2025
World's Most PollutedCity Rankings (2024)
World's Most PollutedCountry Rankings(2024)
RankCityAQIAQI Status

Standard Value

Follow

1.

Chalmette, United States

232
Severe
15xabove Standard

2.

New Orleans, United States

222
Severe
15xabove Standard

3.

Plaquemine, United States

198
Unhealthy
13xabove Standard

4.

Saint Gabriel, United States

196
Unhealthy
13xabove Standard

5.

Harahan, United States

196
Unhealthy
13xabove Standard

6.

Geismar, United States

195
Unhealthy
13xabove Standard

7.

Kenner, United States

174
Unhealthy
12xabove Standard

8.

Meraux, United States

168
Unhealthy
11xabove Standard

9.

Jefferson, United States

166
Unhealthy
11xabove Standard

10.

Port Allen, United States

157
Unhealthy
10xabove Standard

Last Updated: 01 Jun 2025, 06:30 PM

AQI City Rankings

Air Quality Solutions For California

Explore the solutions of air quality monitoring & clean air.

Here are some applications that you can go through to find out the solutions.

Air Quality Monitor

Air Quality Monitor

Monitor the air quality
Air Quality Sensors

Air Quality Sensors

Sensors to measure the air quality
Fresh Air Machine

Fresh Air Machine

Clean the air you breathe
Car Cabin Filter

Car Cabin Filter

Purify the air in your car
N95 Mask

N95 Mask

Shield yourself from pollution
air quality solutions for offices for California

Air Quality Solution For Offices

A complete solution for air quality monitoring, data analysis, and fresh air solutions in workplaces prioritizing employee's health and productivity.

air quality solutions for smart-city for California

Air Quality Solutions For Smart City

Prana Air smart city project provides air quality monitors, drones, outdoor air purifiers, and data dashboards solution to improve air quality.

air quality solutions for institutes for California

Air Quality Solutions for Schools | Institutes

Prana Air provides the air quality solutions for schools by air monitoring & fresh air machine that help the students to breather clean air.

air quality solutions for hotels for California

Air Quality Solutions For Hotels

Prana Air air quality solutions are suited for hotel businesses. The occupancy of hotels is the main reasons for bad air quality.

air quality solutions for restaurants for California

Air Quality Solutions for Restaurants

Prana Air has the air quality solutions for restaurant, cafes, and gives you the power to know what your customers and staff breathe.

air quality solutions for rmc-plants for California

Air Quality Solutions for RMC Plants

Prana Air provides air quality monitoring solutions for RMC plants. Improve compliance, protect workers and community, and reduce emissions.

air quality solutions for fitness-center for California

Air Quality Solutions for Fitness Center

Prana Air provides the air quality solutions of pollution monitoring and fresh air for fitness center - gym.

air quality solutions for parking-lot for California

Air Quality Solutions for Parking Lot

A complete solution for air monitoring, data analysis, and fresh air solutions for enclosed car parking areas and car lots.

air quality solutions for retail-stores for California

Air Quality Solutions for Retail Stores

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets.

air quality solutions for airport for California

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets

Prana Air provides the air quality solutions for airport. Gathering of many passengers is the main reasons of bad air quality in airport.

air quality solutions for construction-sites for California

Air Quality Solutions For Construction Sites

Prana Air offers air quality monitoring solutions for construction sites with data cloud storage, web-dashboard, mobile apps, TV display.

air quality solutions for hospitals for California

Air Quality Solutions For Hospitals

Prana Air provides air quality monitoring and fresh air solutions for hospitals to ensure clean and healthy indoor air.

air quality solutions for bathroom for California

Air Quality Solutions For Washroom | Bathroom

Improve washroom and bathroom air quality with Prana Air air quality monitoring devices and fresh air machine. Breathe easy and stay healthy.

air quality solutions for banks for California

Air Quality Solutions for Banks

Prana Air provides air quality solutions of pollution monitoring and fresh air for banks and financial institutions.

air quality solutions for cinema for California

Air Quality Solutions for Cinema

Air quality solutions for cinema halls or theatres will help the customers to get the good experience, comfort and breathe clean air.

air quality solutions for real-estates for California

Air Quality Solutions For Real Estates

Prana Air provides the air quality solutions of pollution monitoring and fresh air for real estates - residential and commercial.

California's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
Smart TV AppSmart TV App
Web DashboardWeb Dashboard
APIAPI
WidgetsWidgets
aqi air quality app for California
Mobile App

Empower Your Decisions with Reliable Data

Your area’s real-time data with detailed parameters.

Your area’s real-time data with detailed parameters.

Personalized health advice as per current AQI.

Personalized health advice as per current AQI.

Analytical data to identify trends and conditions.

Analytical data to identify trends and conditions.

Connect and control your air quality devices.

Connect and control your air quality devices.

Air Quality FAQs

at California

Frequently Asked Questions About Air Quality

What is the current AQI level in California?

The current real-time AQI level in California is 44 (Good). This was last updated 2 minutes ago (Local Time).

When was the best AQI level in California in the last 24 hours?

The best AQI level was 40 (Good) at 9:09 AM (Local Time) during the last 24 hours.

When was the worst AQI level in California in the last 24 hours?

The worst AQI level was 49 (Good) at 1:39 PM, May 31, 2025 (Local Time) during the last 24 hours.

What is the current trend of AQI levels in California during last 24 hours?

The AQI levels in California have been fluctuating throughout the last 24 hours. The levels have increased by highest 49 at 1:39 PM, May 31, 2025 (Local Time), lowest 40 at 9:09 AM (Local Time).

What actions are recommended as per the current AQI level in California?

The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.

Recent AQI Blogs

Read the latest news

Here are some latest blogs that you can go through to find out more air pollution.

Wildfire Alert in Northeastern Minnesota: From Crisis to Control Journey.

Wildfire Alert in Northeastern Minnesota: From Crisis to Control Journey.

30 May 2025Shakshi
Delhi Rain May 2025 Breaks Records — Why It Happened and What’s Next

Delhi Rain May 2025 Breaks Records — Why It Happened and What’s Next

26 May 2025Shakshi
How Air Pollution Fuels COPD—and What You Can Do About It?

How Air Pollution Fuels COPD—and What You Can Do About It?

22 May 2025Shakshi
How Heat and Air Pollution Can Be Increasing Mortality in India: New Study Reveals

How Heat and Air Pollution Can Be Increasing Mortality in India: New Study Reveals

19 May 2025Shakshi
Thick Dust Covers New Delhi: What’s Happening on May 15, 2025?

Thick Dust Covers New Delhi: What’s Happening on May 15, 2025?

15 May 2025Shakshi
Long-Term Exposure to Polluted Air and Its Impact on Heart Health: A Global Perspective

Long-Term Exposure to Polluted Air and Its Impact on Heart Health: A Global Perspective

15 May 2025Gyane
Carbon monoxide (CO) or PM2.5: Which is more dangerous for human health and the environment?

Carbon monoxide (CO) or PM2.5: Which is more dangerous for human health and the environment?

14 May 2025Shakshi
Methane Emissions from Delhi’s Landfills: An Invisible Threat

Methane Emissions from Delhi’s Landfills: An Invisible Threat

12 May 2025Shakshi
The Hidden Link Between Air Pollution and Parkinson’s Disease: What the Study Shows?

The Hidden Link Between Air Pollution and Parkinson’s Disease: What the Study Shows?

7 May 2025Shakshi
World Asthma Day 2025: The Link Between Air Pollution and Asthma

World Asthma Day 2025: The Link Between Air Pollution and Asthma

6 May 2025Shakshi
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Prana Sense

Air Quality Monitor

Air Quality Index depicts the extent of air pollution at a particular location.

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Pocket PM

Air Quality Monitor

Know the air quality around you wherever you are with the Pocket monitor to get instant air quality insights.

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Cair +

Indoor Air Quality Monitor

Track indoor air quality with advanced connectivity and portability for real-time air quality data.

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