Stay updated with real-time air quality in Valley Center, 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
Valley Center, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.54 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.96 μg/m³
0
55
155
255
425
605+
25.51 ppb
0
55
71
86
201
201+
0.92 ppb
0
36
76
186
605
1005+
12.74 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Valley Center, California
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AQI 23
Good
4.22μg/m³
PM2.5
11.33μg/m³
PM10
25.43ppb
O3
0.90ppb
SO2
9.47ppb
NO2
0.27ppm
CO
AQI 22
Good
4.45μg/m³
PM2.5
13.15μg/m³
PM10
18.90ppb
O3
0.89ppb
SO2
4.00ppb
NO2
0.27ppm
CO
AQI 22
Good
4.42μg/m³
PM2.5
13.37μg/m³
PM10
19.06ppb
O3
0.87ppb
SO2
3.77ppb
NO2
0.27ppm
CO
AQI 26
Good
4.43μg/m³
PM2.5
13.36μg/m³
PM10
28.31ppb
O3
0.96ppb
SO2
15.02ppb
NO2
0.27ppm
CO
AQI 27
Good
4.60μg/m³
PM2.5
11.87μg/m³
PM10
19.55ppb
O3
0.84ppb
SO2
5.83ppb
NO2
0.27ppm
CO
AQI 22
Good
3.98μg/m³
PM2.5
9.65μg/m³
PM10
19.19ppb
O3
0.90ppb
SO2
6.84ppb
NO2
0.27ppm
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 Valley Center, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Valley Center, California was at its worst at 12:00:00 on 2026-03-10.
In the last 24 hours, the best air quality in Valley Center, California was observed at 01:00:00 on 2026-03-09.
As of now, the AQI in Valley Center, California is 27, indicating Good conditions.
Valley Center, California air has the highest levels of PM2.5.
Poor air quality in Valley Center, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Valley Center, California are currently 4.541 μg/m3.
The PM10 concentration in Valley Center, California is 10.955 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Valley Center, California is 0.268 ppm.
Currently, Valley Center, California has a sulfur dioxide (SO2) concentration of 0.918 ppb.
The current ozone (O3) level in Valley Center, California at the moment is 25.511 ppm.
Nitrogen dioxide (NO2) level in Valley Center, California at the moment is 12.745 ppb.
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