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)
49
Good
Fresno, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.31 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
34.55 μg/m³
0
55
155
255
425
605+
5.33 ppb
0
55
71
86
201
201+
0.34 ppb
0
36
76
186
605
1005+
11.81 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Fresno, California
Fresno, California
Scroll To Air Quality MapLoading...
AQI 16
Good
2.90μg/m³
PM2.5
7.33μg/m³
PM10
4.97ppb
O3
0.37ppb
SO2
9.06ppb
NO2
0.20ppm
CO
AQI 38
Good
7.11μg/m³
PM2.5
30.01μg/m³
PM10
5.14ppb
O3
0.41ppb
SO2
10.02ppb
NO2
0.21ppm
CO
AQI 69
Moderate
12.70μg/m³
PM2.5
90.66μg/m³
PM10
6.32ppb
O3
0.41ppb
SO2
10.09ppb
NO2
0.22ppm
CO
AQI 44
Good
8.40μg/m³
PM2.5
14.33μg/m³
PM10
9.09ppb
O3
0.45ppb
SO2
9.30ppb
NO2
0.22ppm
CO
AQI 44
Good
7.75μg/m³
PM2.5
11.48μg/m³
PM10
5.88ppb
O3
0.42ppb
SO2
7.05ppb
NO2
0.22ppm
CO
AQI 38
Good
7.06μg/m³
PM2.5
14.17μg/m³
PM10
5.31ppb
O3
0.42ppb
SO2
7.56ppb
NO2
0.22ppm
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 03:00:00 on 2025-12-13.
The best air quality in Fresno, California was recorded at 05:00:00 on 2025-12-12.
The real-time air quality index in Fresno, California is 49, 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 9.308 μg/m3.
The current PM10 levels in Fresno, California are 34.545 μg/m3.
The current carbon monoxide (CO) level in Fresno, California is 0.205 ppm.
The current sulfur dioxide (SO2) levels in Fresno, California are 0.335 ppb.
The current ozone (O3) levels at Fresno, California is 5.331 ppm.
The current nitrogen dioxide (NO2) levels at Fresno, California is 11.814 ppb.
All Rights Reserved © Ambee Inc. 2025