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)
27
Good
Stevenson Ranch, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.42 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.78 μg/m³
0
55
155
255
425
605+
17.47 ppb
0
55
71
86
201
201+
0.67 ppb
0
36
76
186
605
1005+
8.19 ppb
0
54
101
361
1250
2050+
0.30 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 22
Good
3.57μg/m³
PM2.5
15.60μg/m³
PM10
16.99ppb
O3
0.68ppb
SO2
6.10ppb
NO2
0.21ppm
CO
AQI 22
Good
3.90μg/m³
PM2.5
7.18μg/m³
PM10
20.56ppb
O3
0.68ppb
SO2
7.60ppb
NO2
0.38ppm
CO
AQI 58
Moderate
12.89μg/m³
PM2.5
52.55μg/m³
PM10
13.41ppb
O3
0.61ppb
SO2
17.33ppb
NO2
0.46ppm
CO
AQI 33
Good
6.21μg/m³
PM2.5
19.75μg/m³
PM10
21.56ppb
O3
0.66ppb
SO2
11.05ppb
NO2
0.46ppm
CO
AQI 54
Moderate
10.69μg/m³
PM2.5
29.76μg/m³
PM10
16.70ppb
O3
0.64ppb
SO2
24.98ppb
NO2
0.51ppm
CO
AQI 38
Good
6.82μg/m³
PM2.5
23.76μg/m³
PM10
21.11ppb
O3
0.66ppb
SO2
12.49ppb
NO2
0.47ppm
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 2025-12-07.
In the last 24 hours, the best air quality in Stevenson Ranch, California was observed at 08:00:00 on 2025-12-06.
As of now, the AQI in Stevenson Ranch, California is 27, 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 5.424 μg/m3.
The PM10 concentration in Stevenson Ranch, California is 20.782 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Stevenson Ranch, California is 0.303 ppm.
Currently, Stevenson Ranch, California has a sulfur dioxide (SO2) concentration of 0.67 ppb.
The current ozone (O3) level in Stevenson Ranch, California at the moment is 17.47 ppm.
Nitrogen dioxide (NO2) level in Stevenson Ranch, California at the moment is 8.191 ppb.
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