Stay updated with real-time air quality in Chula Vista, 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)
41
Good
Chula Vista, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.47 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.42 μg/m³
0
55
155
255
425
605+
43.69 ppb
0
55
71
86
201
201+
0.42 ppb
0
36
76
186
605
1005+
5.65 ppb
0
54
101
361
1250
2050+
0.32 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Chula Vista, California
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AQI 49
Good
9.01μg/m³
PM2.5
25.76μg/m³
PM10
39.02ppb
O3
0.45ppb
SO2
7.25ppb
NO2
0.30ppm
CO
AQI 49
Good
8.91μg/m³
PM2.5
26.35μg/m³
PM10
41.20ppb
O3
0.44ppb
SO2
6.91ppb
NO2
0.30ppm
CO
AQI 49
Good
8.52μg/m³
PM2.5
28.92μg/m³
PM10
40.80ppb
O3
0.43ppb
SO2
6.71ppb
NO2
0.30ppm
CO
AQI 49
Good
9.15μg/m³
PM2.5
25.72μg/m³
PM10
37.45ppb
O3
0.45ppb
SO2
7.47ppb
NO2
0.30ppm
CO
AQI 49
Good
9.13μg/m³
PM2.5
25.16μg/m³
PM10
36.35ppb
O3
0.45ppb
SO2
7.60ppb
NO2
0.30ppm
CO
AQI 54
Moderate
10.85μg/m³
PM2.5
29.73μg/m³
PM10
43.73ppb
O3
0.44ppb
SO2
7.14ppb
NO2
0.30ppm
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 Chula Vista, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Chula Vista, California was at its worst at 04:00:00 on 2026-03-03.
In the last 24 hours, the best air quality in Chula Vista, California was observed at 03:00:00 on 2026-03-03.
As of now, the AQI in Chula Vista, California is 41, indicating Good conditions.
Chula Vista, California air has the highest levels of O3.
Poor air quality in Chula Vista, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Chula Vista, California are currently 7.47 μg/m3.
The PM10 concentration in Chula Vista, California is 21.424 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Chula Vista, California is 0.324 ppm.
Currently, Chula Vista, California has a sulfur dioxide (SO2) concentration of 0.419 ppb.
The current ozone (O3) level in Chula Vista, California at the moment is 43.694 ppm.
Nitrogen dioxide (NO2) level in Chula Vista, California at the moment is 5.654 ppb.
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