Stay updated with real-time air quality in Stevenson Ranch, 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)
67
Moderate
Stevenson Ranch, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.41 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
47.87 μg/m³
0
55
155
255
425
605+
60.24 ppb
0
55
71
86
201
201+
0.69 ppb
0
36
76
186
605
1005+
4.53 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Stevenson Ranch, California
Stevenson Ranch, California
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AQI 56
Moderate
11.61μg/m³
PM2.5
50.83μg/m³
PM10
51.89ppb
O3
0.81ppb
SO2
6.11ppb
NO2
0.17ppm
CO
AQI 54
Moderate
11.19μg/m³
PM2.5
42.48μg/m³
PM10
50.66ppb
O3
0.78ppb
SO2
9.18ppb
NO2
0.18ppm
CO
AQI 58
Moderate
12.94μg/m³
PM2.5
45.97μg/m³
PM10
49.89ppb
O3
0.86ppb
SO2
5.62ppb
NO2
0.17ppm
CO
AQI 52
Moderate
10.39μg/m³
PM2.5
40.24μg/m³
PM10
44.70ppb
O3
0.78ppb
SO2
7.73ppb
NO2
0.17ppm
CO
AQI 54
Moderate
10.62μg/m³
PM2.5
38.87μg/m³
PM10
50.36ppb
O3
0.78ppb
SO2
6.36ppb
NO2
0.17ppm
CO
AQI 52
Moderate
9.98μg/m³
PM2.5
39.25μg/m³
PM10
45.20ppb
O3
0.79ppb
SO2
8.01ppb
NO2
0.17ppm
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 Stevenson Ranch, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Stevenson Ranch, California was at its worst at 09:00:00 on 2026-06-08.
In the last 24 hours, the best air quality in Stevenson Ranch, California was observed at 02:00:00 on 2026-06-08.
As of now, the AQI in Stevenson Ranch, California is 58, indicating Moderate conditions.
Stevenson Ranch, California air has the highest levels of O3.
Poor air quality in Stevenson Ranch, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Stevenson Ranch, California are currently 11.196 μg/m3.
The PM10 concentration in Stevenson Ranch, California is 46.135 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Stevenson Ranch, California is 0.126 ppm.
Currently, Stevenson Ranch, California has a sulfur dioxide (SO2) concentration of 0.674 ppb.
The current ozone (O3) level in Stevenson Ranch, California at the moment is 56.661 ppm.
Nitrogen dioxide (NO2) level in Stevenson Ranch, California at the moment is 5.942 ppb.
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