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)
47
Good
Stevenson Ranch, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.63 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.91 μg/m³
0
55
155
255
425
605+
50.93 ppb
0
55
71
86
201
201+
0.38 ppb
0
36
76
186
605
1005+
3.79 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Stevenson Ranch, California
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AQI 49
Good
6.35μg/m³
PM2.5
28.69μg/m³
PM10
52.87ppb
O3
0.37ppb
SO2
3.23ppb
NO2
0.21ppm
CO
AQI 46
Good
3.47μg/m³
PM2.5
16.52μg/m³
PM10
50.39ppb
O3
0.40ppb
SO2
5.29ppb
NO2
0.21ppm
CO
AQI 45
Good
4.89μg/m³
PM2.5
21.07μg/m³
PM10
48.83ppb
O3
0.35ppb
SO2
2.97ppb
NO2
0.19ppm
CO
AQI 44
Good
3.34μg/m³
PM2.5
11.40μg/m³
PM10
46.82ppb
O3
0.41ppb
SO2
5.37ppb
NO2
0.21ppm
CO
AQI 41
Good
2.76μg/m³
PM2.5
17.83μg/m³
PM10
44.24ppb
O3
0.40ppb
SO2
5.92ppb
NO2
0.20ppm
CO
AQI 44
Good
3.14μg/m³
PM2.5
11.08μg/m³
PM10
46.99ppb
O3
0.41ppb
SO2
5.22ppb
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 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 11:00:00 on 2026-03-09.
In the last 24 hours, the best air quality in Stevenson Ranch, California was observed at 07:00:00 on 2026-03-09.
As of now, the AQI in Stevenson Ranch, California is 47, indicating Good 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 5.634 μg/m3.
The PM10 concentration in Stevenson Ranch, California is 23.908 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Stevenson Ranch, California is 0.206 ppm.
Currently, Stevenson Ranch, California has a sulfur dioxide (SO2) concentration of 0.378 ppb.
The current ozone (O3) level in Stevenson Ranch, California at the moment is 50.929 ppm.
Nitrogen dioxide (NO2) level in Stevenson Ranch, California at the moment is 3.789 ppb.
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