Real-time air quality index in Fresno, California today
Stay updated with real-time air quality in Fresno, California featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
27
Good
Fresno, California
Last updated: ... (Local time)
Common air pollutants in Fresno, California
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
4.18 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
17.59 μg/m³
0
55
155
255
425
605+
Ozone (O3)
29.00 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.33 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
5.12 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Fresno, California
Fresno, California
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Fresno, California air quality map: Real-time AQI near you
Air quality in nearby cities
Clovis, California
AQI 20
Good
2.77μg/m³
PM2.5
18.43μg/m³
PM10
21.91ppb
O3
0.68ppb
SO2
2.17ppb
NO2
0.10ppm
CO
Sanger, California
AQI 33
Good
5.87μg/m³
PM2.5
18.29μg/m³
PM10
20.32ppb
O3
0.67ppb
SO2
3.14ppb
NO2
0.10ppm
CO
Selma, California
AQI 27
Good
4.75μg/m³
PM2.5
16.88μg/m³
PM10
20.96ppb
O3
0.67ppb
SO2
4.57ppb
NO2
0.10ppm
CO
Kerman, California
AQI 20
Good
3.04μg/m³
PM2.5
21.71μg/m³
PM10
20.89ppb
O3
0.86ppb
SO2
3.44ppb
NO2
0.10ppm
CO
Parlier, California
AQI 27
Good
5.15μg/m³
PM2.5
21.16μg/m³
PM10
23.65ppb
O3
0.67ppb
SO2
3.38ppb
NO2
0.10ppm
CO
Kingsburg, California
AQI 27
Good
4.97μg/m³
PM2.5
22.37μg/m³
PM10
22.49ppb
O3
0.69ppb
SO2
3.92ppb
NO2
0.10ppm
CO
How accurate is California, USA air quality data?
Air quality measurements for California, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Frequently asked questions
How frequently is the air quality data for Fresno, California updated?
Air quality data for Fresno, California is updated on an hourly basis.
When did Fresno, California experience the worst air quality in the last 24 hours?
The worst air quality in Fresno, California was recorded at 03:00:00 on 2025-07-24.
When did Fresno, California have its best air quality in the last 24 hours?
The best air quality in Fresno, California was recorded at 02:00:00 on 2025-07-23.
What is the real-time air quality index for Fresno, California?
The real-time air quality index in Fresno, California is 19, currently categorized as Good.
Which pollutant is found most often in Fresno, California?
The most common pollutant in Fresno, California is O3.
What can I do if the air quality in Fresno, California is poor?
If the air quality in Fresno, California is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in Fresno, California?
The measured PM2.5 levels in Fresno, California at present are 3.492 μg/m3.
What are the current PM10 levels at Fresno, California?
The current PM10 levels in Fresno, California are 17.563 μg/m3.
What are the current carbon monoxide (CO) levels at Fresno, California?
The current carbon monoxide (CO) level in Fresno, California is 0.1 ppm.
What are the current sulfur dioxide (SO2) levels at Fresno, California?
The current sulfur dioxide (SO2) levels in Fresno, California are 0.678 ppb.
What are the current ozone (O3) levels at Fresno, California?
The current ozone (O3) levels at Fresno, California is 19.568 ppm.
What are the current nitrogen dioxide (NO2) levels at Fresno, California?
The current nitrogen dioxide (NO2) levels at Fresno, California is 5.821 ppb.
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