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)
49
Good
Chula Vista, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.09 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.44 μg/m³
0
55
155
255
425
605+
30.92 ppb
0
55
71
86
201
201+
0.38 ppb
0
36
76
186
605
1005+
11.25 ppb
0
54
101
361
1250
2050+
0.31 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Chula Vista, California
Chula Vista, California
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AQI 49
Good
9.25μg/m³
PM2.5
18.37μg/m³
PM10
31.38ppb
O3
0.38ppb
SO2
10.16ppb
NO2
0.31ppm
CO
AQI 49
Good
9.40μg/m³
PM2.5
20.26μg/m³
PM10
30.54ppb
O3
0.38ppb
SO2
11.05ppb
NO2
0.31ppm
CO
AQI 52
Moderate
10.00μg/m³
PM2.5
29.46μg/m³
PM10
30.81ppb
O3
0.38ppb
SO2
10.60ppb
NO2
0.31ppm
CO
AQI 49
Good
9.40μg/m³
PM2.5
17.50μg/m³
PM10
31.68ppb
O3
0.38ppb
SO2
9.41ppb
NO2
0.31ppm
CO
AQI 49
Good
9.47μg/m³
PM2.5
16.26μg/m³
PM10
31.92ppb
O3
0.38ppb
SO2
9.10ppb
NO2
0.31ppm
CO
AQI 49
Good
9.31μg/m³
PM2.5
17.55μg/m³
PM10
29.41ppb
O3
0.38ppb
SO2
10.55ppb
NO2
0.31ppm
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 01:00:00 on 2026-08-17.
In the last 24 hours, the best air quality in Chula Vista, California was observed at 04:00:00 on 2026-08-16.
As of now, the AQI in Chula Vista, California is 49, indicating Good conditions.
Chula Vista, California air has the highest levels of PM2.5.
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 9.093 μg/m3.
The PM10 concentration in Chula Vista, California is 18.443 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Chula Vista, California is 0.307 ppm.
Currently, Chula Vista, California has a sulfur dioxide (SO2) concentration of 0.375 ppb.
The current ozone (O3) level in Chula Vista, California at the moment is 30.918 ppm.
Nitrogen dioxide (NO2) level in Chula Vista, California at the moment is 11.246 ppb.
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