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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
33
Air Quality is
Good
pm10 :  25 µg/m³
PM2.5 :  6 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi good level.webp in California
sunny

26 °C

Sunny
Humidity
Humidity47 %
Wind Speed
Wind Speed9 km/h
UV Index
UV Index9
Last Updated: 2 minutes ago (Local Time)
Map

California

Major Air Pollutants

California

PM2.5's Icon

Particulate Matter(PM2.5)

6µg/m³

PM10's Icon

Particulate Matter(PM10)

25µg/m³

CO's Icon

Carbon Monoxide(CO)

63ppb

SO2's Icon

Sulfur Dioxide(SO2)

1ppb

NO2's Icon

Nitrogen Dioxide(NO2)

7ppb

O3's Icon

Ozone(O3)

30ppb

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City Climate Change Severity Analysis is NOW LIVE on AQI.in!📢

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AQI Graph

Historical Air Quality Data

California

24 Hours
AQI
California
AQI
.
08-07-2025Time09-07-2025
29
Min.at 6:10 AM on 9th Jul
37
Max.at 3:09 PM on 8th Jul

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.(%)
Good
21
4
13
16
82
Good
37
7
24
31
37
Good
27
5
23
24
43
Good
42
8
22
21
69
Good
37
7
17
20
48
Good
19
3
13
17
74
Good
18
3
12
18
65
Good
17
3
10
19
76
Good
39
7
30
22
42
Good
23
4
14
24
52
Moderate
53
10
22
25
40
Good
16
3
12
17
69
Good
45
9
35
22
48
Good
29
5
27
31
31
Good
33
6
30
31
34
Good
24
4
27
22
53
Good
17
3
13
17
77
Good
18
3
13
16
82
Good
41
7
17
16
31
Good
40
7
16
16
31
Moderate
51
9
44
25
54
Moderate
52
10
58
34
31
Good
20
4
9
19
76
Moderate
53
10
32
23
55
Moderate
53
10
55
36
40
Moderate
54
11
58
34
31
Good
41
7
23
21
58
Good
16
3
14
18
57
Good
37
7
25
21
69
Good
42
8
22
21
70
Good
21
4
15
21
31
Good
24
4
22
15
32
Good
24
4
19
22
52
Good
35
6
29
29
37
Moderate
52
10
34
24
60
Good
20
4
18
23
50
Good
34
6
38
22
51
Good
29
5
27
24
42
Good
16
3
12
20
64
Good
44
8
22
21
69
Good
17
3
13
18
65
Good
16
3
13
17
69
Good
41
7
32
22
47
Good
26
5
18
22
50
Good
39
7
26
24
68
Good
16
3
10
20
66
Good
28
5
30
24
39
Good
28
5
31
21
54
Good
30
6
29
23
38
Moderate
51
9
40
31
32
Good
44
8
38
22
55
Good
50
9
28
22
62
Moderate
52
10
52
33
43
Good
38
7
24
20
74
Good
18
3
12
20
64
Good
17
3
13
16
81
Good
18
3
10
21
61
Good
17
3
13
17
75
Good
24
4
27
22
53
Good
32
6
29
21
64
Good
48
9
34
21
61
Good
24
4
20
21
54
Moderate
59
13
60
32
32
Good
40
7
36
17
31
Good
21
4
16
23
56
Moderate
52
9
57
32
31
Good
37
7
34
22
50
Good
40
7
22
22
65
Good
17
3
12
18
71
Good
44
8
23
21
69
Good
38
7
20
21
50
Moderate
52
10
38
24
54
Good
27
5
20
20
76
Good
37
6
22
24
40
Good
20
4
13
21
60
Good
15
3
13
17
74
Moderate
52
10
36
22
47
Good
21
4
19
23
53
Good
15
3
13
18
64
Good
37
7
35
27
33
Good
18
3
16
24
50
Good
20
4
11
20
58
Good
48
9
28
21
60
Good
32
6
25
22
46
Moderate
58
7
69
32
44
Good
34
6
20
26
40
Moderate
66
18
44
24
53
Good
19
4
15
20
30
Good
26
5
25
26
36
Good
18
4
14
22
46
Good
37
7
24
22
58
Good
50
8
56
32
32
Good
26
5
21
26
44
Good
34
6
26
30
34
Good
27
5
20
23
32
Good
25
5
13
20
41
Good
18
3
12
20
57
Good
15
3
14
17
78
Good
37
7
29
25
42
Good
21
4
23
20
55
Good
44
8
23
21
69
Good
18
3
9
18
78
Good
26
4
14
21
30
Good
40
7
24
21
72
Good
48
9
30
22
62
Good
27
5
29
22
50
Good
37
7
30
28
33
Good
49
9
41
22
49
Good
23
4
22
21
33
Good
26
4
26
16
32
Good
16
3
15
18
71
Good
37
7
31
24
48
Good
45
8
39
21
52
Good
24
4
19
23
52
Moderate
54
10
63
34
32
Good
34
6
23
21
46
Good
26
5
19
21
53
Good
42
7
35
18
32
Good
21
4
18
21
33
Good
20
4
16
18
66
Good
27
5
27
29
33
Good
38
7
14
19
34
Good
21
4
12
22
48
Good
30
5
25
21
40
Good
17
3
12
17
78
Good
22
4
10
20
68
Moderate
53
10
22
25
40
Good
17
3
13
17
80
Moderate
55
11
64
35
31
Good
19
4
13
16
79
Good
18
3
14
16
79
Good
17
3
10
19
76
Good
28
5
30
24
52
Good
24
4
16
22
33
Moderate
59
14
41
26
46
Good
35
6
29
21
39
Good
19
4
12
21
51
Good
24
4
18
22
53
Good
26
5
17
21
52
Good
21
4
15
24
50
Good
49
9
27
24
61
Good
32
6
30
24
46
Good
37
7
29
24
52
Good
36
6
34
22
47
Moderate
52
9
38
24
52
Good
25
5
17
24
53
Good
42
7
26
22
59
Good
39
7
34
22
61
Good
32
6
30
24
43
Good
28
5
31
21
54
Good
43
8
15
15
31
Good
49
9
35
24
53
Good
48
8
30
21
53
Good
24
4
24
11
32
Good
23
4
22
21
33
Good
21
4
13
24
46
Good
30
5
23
21
44
Good
33
6
21
24
46
Good
46
8
37
31
31
Good
18
3
13
16
82
Good
32
6
21
22
32
Good
22
4
13
17
74
Moderate
66
18
44
24
53
Good
27
5
27
29
35
Good
21
4
9
21
55
Good
16
3
10
17
71
Good
16
3
14
17
76
Moderate
54
10
58
34
31
Good
21
4
15
24
47
Moderate
52
10
47
32
36
Good
50
9
30
25
58
Good
15
3
13
16
80
Good
24
4
15
18
72
Good
29
5
14
21
50
Good
17
3
13
17
74
Good
19
4
12
21
52
Good
41
7
34
22
52
Good
15
3
13
17
78
Good
15
3
12
16
80
Good
34
6
22
19
76
Good
42
8
41
31
33
Good
15
3
14
17
74
Good
35
6
38
30
35
Good
19
4
17
19
51
Good
29
5
32
22
58
Good
27
5
27
28
41
Good
16
3
14
18
57
Good
15
3
13
17
64
Good
43
8
32
22
47
Good
33
6
30
29
34
Good
28
5
19
22
44
Good
42
8
24
21
70
Good
28
5
28
26
44
Good
36
6
38
20
38
Good
38
7
21
21
67
Good
37
7
12
20
32
Good
31
6
31
24
44
Good
19
3
17
22
56
Good
26
5
12
18
70
Good
34
6
21
17
32
Good
26
4
23
14
32
Good
44
8
15
20
32
Moderate
55
8
63
36
29
Good
41
8
32
24
57
Good
26
5
28
27
40
Good
49
9
32
24
52
Good
20
4
16
20
56
Good
34
6
17
18
32
Good
22
4
18
18
65
Good
19
4
16
23
56
Moderate
54
11
53
30
31
Good
15
3
13
19
59
Good
16
3
12
17
76
Good
28
5
21
24
53
Good
44
8
31
31
32
Good
39
7
24
22
47
Good
31
5
28
23
46
Moderate
52
9
58
34
30
Good
28
5
20
25
48
Good
16
3
13
22
54
Good
19
3
13
21
58
Good
15
3
12
17
68
Good
21
4
17
21
54
Good
30
6
29
25
46
Good
20
4
12
18
68
Good
35
6
33
22
36
Good
36
6
27
24
42
Good
16
3
12
20
64
Good
42
7
30
24
41

United States's Metro Cities

Air Quality Index

Chicago City AQI

Chicago

54

temp.24°C
hum.71%
Los Angeles City AQI

Los Angeles

47

temp.26°C
hum.39%
Minneapolis City AQI

Minneapolis

40

temp.27°C
hum.52%
Nashville City AQI

Nashville

58

temp.24°C
hum.85%
New Orleans City AQI

New Orleans

34

temp.32°C
hum.59%
New York City City AQI

New York City

33

temp.30°C
hum.55%
San Francisco City AQI

San Francisco

15

temp.16°C
hum.75%
Washington City AQI

Washington

46

temp.32°C
hum.65%

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.

Get an 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.

Steubenville, United States

72
Moderate
5xabove Standard

2.

Muncie, United States

69
Moderate
5xabove Standard

3.

Dayton, United States

69
Moderate
5xabove Standard

4.

New Castle, United States

68
Moderate
5xabove Standard

5.

Cleveland, United States

68
Moderate
5xabove Standard

6.

Indianapolis, United States

68
Moderate
5xabove Standard

7.

Canton, United States

68
Moderate
5xabove Standard

8.

Speedway, United States

68
Moderate
5xabove Standard

9.

Fishers, United States

68
Moderate
5xabove Standard

10.

Noblesville, United States

68
Moderate
5xabove Standard

Last Updated: 09 Jul 2025, 06:43 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

Get it onApp Store
Get it onGoogle Play
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 33 (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 29 (Good) at 6:10 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 37 (Good) at 3:09 PM, Jul 8, 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 remained stable over the last 24 hours as around 31.36 .

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.

Air Pollution and Lung Cancer: How Toxic Air is Mutating Your DNA?

Air Pollution and Lung Cancer: How Toxic Air is Mutating Your DNA?

7 Jul 2025Shakshi
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Can Banning Old Vehicles Really Improve Delhi’s Air Quality? Here’s What the Data Says

4 Jul 2025Gyane Haobijam
Arizona Dust Storm 2025: How the Sudden Storm Pushed AQI to Hazardous Levels?

Arizona Dust Storm 2025: How the Sudden Storm Pushed AQI to Hazardous Levels?

2 Jul 2025Shakshi
Air Pollution Comparison Between England vs India: What a 45% Asthma Spike in the UK Reveals

Air Pollution Comparison Between England vs India: What a 45% Asthma Spike in the UK Reveals

1 Jul 2025Shakshi
Urban Heat Islands in India: The 2024 Climate Crisis in Metro Cities

Urban Heat Islands in India: The 2024 Climate Crisis in Metro Cities

24 Jun 2025Shakshi
Delhi AQI Drops After Months: How Rain Provided Temporary Relief in Pollution Levels 

Delhi AQI Drops After Months: How Rain Provided Temporary Relief in Pollution Levels 

19 Jun 2025Shakshi
AQI.IN Launched First Ever City-Level Climate Change Severity Index -June 2025

AQI.IN Launched First Ever City-Level Climate Change Severity Index -June 2025

19 Jun 2025Gyane Haobijam
Noise Pollution in Ocean: The Silent Threat Beneath the Waves

Noise Pollution in Ocean: The Silent Threat Beneath the Waves

17 Jun 2025Shakshi
Heat Alert in Delhi: “Feels Like” 49 °C Amid Heatwaves & Dust Storm

Heat Alert in Delhi: “Feels Like” 49 °C Amid Heatwaves & Dust Storm

10 Jun 2025Shakshi
Wildfire Smoke in Canada 2025: AQI Impact, Orange Skies, and What to Do

Wildfire Smoke in Canada 2025: AQI Impact, Orange Skies, and What to Do

9 Jun 2025Shakshi
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Prana Sense

Air Quality Monitor

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

Prana Sense Air Quality MonitorPrana Sense Air Quality Monitor
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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.

Pocket PM Air Quality MonitorPocket PM Air Quality Monitor
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Cair +

Indoor Air Quality Monitor

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

Cair + Indoor Air Quality MonitorCair + Indoor Air Quality Monitor