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)
38
Good
Fresno, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.71 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
29.48 μg/m³
0
55
155
255
425
605+
20.70 ppb
0
55
71
86
201
201+
0.59 ppb
0
36
76
186
605
1005+
8.55 ppb
0
54
101
361
1250
2050+
0.10 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Fresno, California
Fresno, California
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AQI 38
Good
7.20μg/m³
PM2.5
23.07μg/m³
PM10
18.01ppb
O3
0.56ppb
SO2
4.17ppb
NO2
0.10ppm
CO
AQI 33
Good
5.62μg/m³
PM2.5
17.87μg/m³
PM10
18.01ppb
O3
0.54ppb
SO2
5.86ppb
NO2
0.11ppm
CO
AQI 33
Good
5.54μg/m³
PM2.5
18.45μg/m³
PM10
18.00ppb
O3
0.54ppb
SO2
7.03ppb
NO2
0.12ppm
CO
AQI 38
Good
6.84μg/m³
PM2.5
24.89μg/m³
PM10
18.24ppb
O3
0.53ppb
SO2
6.58ppb
NO2
0.12ppm
CO
AQI 33
Good
5.77μg/m³
PM2.5
19.49μg/m³
PM10
17.05ppb
O3
0.54ppb
SO2
6.62ppb
NO2
0.12ppm
CO
AQI 33
Good
6.24μg/m³
PM2.5
24.07μg/m³
PM10
17.03ppb
O3
0.54ppb
SO2
6.85ppb
NO2
0.12ppm
CO
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
Air quality data for Fresno, California is updated on an hourly basis.
The worst air quality in Fresno, California was recorded at 12:00:00 on 2026-08-14.
The best air quality in Fresno, California was recorded at 02:00:00 on 2026-08-14.
The real-time air quality index in Fresno, California is 38, currently categorized as Good.
The most common pollutant in Fresno, California is PM2.5.
If the air quality in Fresno, California is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Fresno, California at present are 6.712 μg/m3.
The current PM10 levels in Fresno, California are 29.484 μg/m3.
The current carbon monoxide (CO) level in Fresno, California is 0.105 ppm.
The current sulfur dioxide (SO2) levels in Fresno, California are 0.589 ppb.
The current ozone (O3) levels at Fresno, California is 20.7 ppm.
The current nitrogen dioxide (NO2) levels at Fresno, California is 8.552 ppb.
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