Stay updated with real-time air quality in San Fernando, 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)
45
Good
San Fernando, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.07 μg/m³
0
55
155
255
425
605+
48.83 ppb
0
55
71
86
201
201+
0.35 ppb
0
36
76
186
605
1005+
2.97 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
San Fernando, 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 44
Good
4.63μg/m³
PM2.5
19.78μg/m³
PM10
47.24ppb
O3
0.32ppb
SO2
2.63ppb
NO2
0.17ppm
CO
AQI 47
Good
5.63μg/m³
PM2.5
23.91μg/m³
PM10
50.93ppb
O3
0.38ppb
SO2
3.79ppb
NO2
0.21ppm
CO
AQI 47
Good
4.08μg/m³
PM2.5
19.27μg/m³
PM10
50.53ppb
O3
0.33ppb
SO2
3.96ppb
NO2
0.18ppm
CO
AQI 43
Good
4.81μg/m³
PM2.5
20.78μg/m³
PM10
45.98ppb
O3
0.30ppb
SO2
2.62ppb
NO2
0.17ppm
CO
AQI 42
Good
5.39μg/m³
PM2.5
22.23μg/m³
PM10
45.03ppb
O3
0.28ppb
SO2
3.69ppb
NO2
0.14ppm
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 San Fernando, California is updated every hour for accuracy.
In the past 24 hours, the air quality in San Fernando, California was at its worst at 11:00:00 on 2026-03-09.
In the last 24 hours, the best air quality in San Fernando, California was observed at 01:00:00 on 2026-03-09.
As of now, the AQI in San Fernando, California is 45, indicating Good conditions.
San Fernando, California air has the highest levels of O3.
Poor air quality in San Fernando, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in San Fernando, California are currently 4.893 μg/m3.
The PM10 concentration in San Fernando, California is 21.073 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in San Fernando, California is 0.194 ppm.
Currently, San Fernando, California has a sulfur dioxide (SO2) concentration of 0.352 ppb.
The current ozone (O3) level in San Fernando, California at the moment is 48.831 ppm.
Nitrogen dioxide (NO2) level in San Fernando, California at the moment is 2.968 ppb.
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