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)
42
Good
Stockton, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.90 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.05 μg/m³
0
55
155
255
425
605+
45.01 ppb
0
55
71
86
201
201+
0.66 ppb
0
36
76
186
605
1005+
8.37 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Stockton, California
Stockton, California
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AQI 52
Moderate
9.60μg/m³
PM2.5
24.00μg/m³
PM10
34.40ppb
O3
0.92ppb
SO2
9.75ppb
NO2
0.26ppm
CO
AQI 52
Moderate
9.56μg/m³
PM2.5
23.95μg/m³
PM10
34.45ppb
O3
0.92ppb
SO2
9.77ppb
NO2
0.26ppm
CO
AQI 37
Good
5.45μg/m³
PM2.5
22.88μg/m³
PM10
40.15ppb
O3
0.92ppb
SO2
6.73ppb
NO2
0.27ppm
CO
AQI 39
Good
4.70μg/m³
PM2.5
22.07μg/m³
PM10
41.56ppb
O3
0.92ppb
SO2
6.34ppb
NO2
0.27ppm
CO
AQI 36
Good
3.61μg/m³
PM2.5
21.73μg/m³
PM10
39.13ppb
O3
0.92ppb
SO2
4.80ppb
NO2
0.27ppm
CO
AQI 33
Good
3.94μg/m³
PM2.5
27.26μg/m³
PM10
35.68ppb
O3
0.92ppb
SO2
5.06ppb
NO2
0.28ppm
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 04:00:00 on 2025-10-21.
In the last 24 hours, the best air quality in Stockton, California was observed at 02:00:00 on 2025-10-21.
As of now, the AQI in Stockton, California is 44, indicating Good 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 7.886 μg/m3.
The PM10 concentration in Stockton, California is 21.028 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Stockton, California is 0.229 ppm.
Currently, Stockton, California has a sulfur dioxide (SO2) concentration of 0.788 ppb.
The current ozone (O3) level in Stockton, California at the moment is 40.038 ppm.
Nitrogen dioxide (NO2) level in Stockton, California at the moment is 8.875 ppb.
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