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)
71
Moderate
Stockton, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
20.06 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.96 μg/m³
0
55
155
255
425
605+
2.02 ppb
0
55
71
86
201
201+
1.20 ppb
0
36
76
186
605
1005+
7.29 ppb
0
54
101
361
1250
2050+
0.35 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Stockton, California
Stockton, California
Scroll To Air Quality MapLoading...
AQI 71
Moderate
19.57μg/m³
PM2.5
27.61μg/m³
PM10
2.18ppb
O3
1.18ppb
SO2
7.23ppb
NO2
0.35ppm
CO
AQI 71
Moderate
19.66μg/m³
PM2.5
27.50μg/m³
PM10
2.20ppb
O3
1.18ppb
SO2
7.23ppb
NO2
0.35ppm
CO
AQI 66
Moderate
16.94μg/m³
PM2.5
21.33μg/m³
PM10
4.53ppb
O3
0.99ppb
SO2
6.68ppb
NO2
0.37ppm
CO
AQI 66
Moderate
17.18μg/m³
PM2.5
20.05μg/m³
PM10
4.91ppb
O3
0.95ppb
SO2
6.22ppb
NO2
0.37ppm
CO
AQI 54
Moderate
11.28μg/m³
PM2.5
49.68μg/m³
PM10
2.56ppb
O3
1.20ppb
SO2
8.33ppb
NO2
0.33ppm
CO
AQI 49
Good
8.59μg/m³
PM2.5
15.24μg/m³
PM10
6.73ppb
O3
0.87ppb
SO2
9.22ppb
NO2
0.37ppm
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 06:00:00 on 2026-01-23.
In the last 24 hours, the best air quality in Stockton, California was observed at 10:00:00 on 2026-01-22.
As of now, the AQI in Stockton, California is 71, 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 20.056 μg/m3.
The PM10 concentration in Stockton, California is 27.959 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Stockton, California is 0.349 ppm.
Currently, Stockton, California has a sulfur dioxide (SO2) concentration of 1.198 ppb.
The current ozone (O3) level in Stockton, California at the moment is 2.017 ppm.
Nitrogen dioxide (NO2) level in Stockton, California at the moment is 7.294 ppb.
All Rights Reserved © Ambee Inc. 2025