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)
33
Good
Stevenson Ranch, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.75 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.34 μg/m³
0
55
155
255
425
605+
27.29 ppb
0
55
71
86
201
201+
0.48 ppb
0
36
76
186
605
1005+
15.26 ppb
0
54
101
361
1250
2050+
0.58 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Stevenson Ranch, California
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AQI 33
Good
5.61μg/m³
PM2.5
23.92μg/m³
PM10
26.96ppb
O3
0.49ppb
SO2
16.56ppb
NO2
0.58ppm
CO
AQI 44
Good
8.00μg/m³
PM2.5
17.01μg/m³
PM10
28.43ppb
O3
0.49ppb
SO2
10.29ppb
NO2
0.56ppm
CO
AQI 33
Good
5.76μg/m³
PM2.5
24.41μg/m³
PM10
20.74ppb
O3
0.49ppb
SO2
20.79ppb
NO2
0.60ppm
CO
AQI 33
Good
5.75μg/m³
PM2.5
19.01μg/m³
PM10
31.33ppb
O3
0.48ppb
SO2
10.18ppb
NO2
0.57ppm
CO
AQI 38
Good
7.42μg/m³
PM2.5
24.46μg/m³
PM10
27.28ppb
O3
0.46ppb
SO2
9.45ppb
NO2
0.60ppm
CO
AQI 33
Good
5.70μg/m³
PM2.5
19.61μg/m³
PM10
31.28ppb
O3
0.48ppb
SO2
10.90ppb
NO2
0.58ppm
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 12:00:00 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 33, indicating Good conditions.
Stevenson Ranch, California air has the highest levels of PM2.5.
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 5.753 μg/m3.
The PM10 concentration in Stevenson Ranch, California is 22.338 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Stevenson Ranch, California is 0.582 ppm.
Currently, Stevenson Ranch, California has a sulfur dioxide (SO2) concentration of 0.485 ppb.
The current ozone (O3) level in Stevenson Ranch, California at the moment is 27.29 ppm.
Nitrogen dioxide (NO2) level in Stevenson Ranch, California at the moment is 15.257 ppb.
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