Stay updated with real-time air quality in Stockton, 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
Stockton, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.18 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.95 μg/m³
0
55
155
255
425
605+
21.07 ppb
0
55
71
86
201
201+
0.47 ppb
0
36
76
186
605
1005+
2.90 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Stockton, California
Stockton, California
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AQI 54
Moderate
11.18μg/m³
PM2.5
25.41μg/m³
PM10
25.44ppb
O3
0.55ppb
SO2
2.33ppb
NO2
0.19ppm
CO
AQI 54
Moderate
11.15μg/m³
PM2.5
25.37μg/m³
PM10
25.36ppb
O3
0.55ppb
SO2
2.35ppb
NO2
0.19ppm
CO
AQI 38
Good
7.01μg/m³
PM2.5
18.30μg/m³
PM10
28.14ppb
O3
0.55ppb
SO2
2.88ppb
NO2
0.21ppm
CO
AQI 33
Good
6.26μg/m³
PM2.5
17.10μg/m³
PM10
27.64ppb
O3
0.55ppb
SO2
3.05ppb
NO2
0.22ppm
CO
AQI 49
Good
9.50μg/m³
PM2.5
23.71μg/m³
PM10
14.60ppb
O3
0.55ppb
SO2
1.28ppb
NO2
0.19ppm
CO
AQI 33
Good
5.76μg/m³
PM2.5
14.33μg/m³
PM10
36.00ppb
O3
0.54ppb
SO2
2.46ppb
NO2
0.21ppm
CO
Air quality and pollutant data for California, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Stockton, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Stockton, California was at its worst at 02:00:00 on 2026-04-25.
In the last 24 hours, the best air quality in Stockton, California was observed at 09:00:00 on 2026-04-24.
As of now, the AQI in Stockton, California is 54, indicating Moderate conditions.
Stockton, California air has the highest levels of PM2.5.
Poor air quality in Stockton, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Stockton, California are currently 11.469 μg/m3.
The PM10 concentration in Stockton, California is 25.944 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Stockton, California is 0.184 ppm.
Currently, Stockton, California has a sulfur dioxide (SO2) concentration of 0.551 ppb.
The current ozone (O3) level in Stockton, California at the moment is 25.037 ppm.
Nitrogen dioxide (NO2) level in Stockton, California at the moment is 2.33 ppb.
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