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)
52
Moderate
Chula Vista, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.56 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.23 μg/m³
0
55
155
255
425
605+
30.13 ppb
0
55
71
86
201
201+
0.81 ppb
0
36
76
186
605
1005+
9.68 ppb
0
54
101
361
1250
2050+
0.27 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 52
Moderate
9.72μg/m³
PM2.5
28.03μg/m³
PM10
27.02ppb
O3
0.81ppb
SO2
12.26ppb
NO2
0.27ppm
CO
AQI 49
Good
9.50μg/m³
PM2.5
28.76μg/m³
PM10
29.66ppb
O3
0.81ppb
SO2
10.17ppb
NO2
0.27ppm
CO
AQI 52
Moderate
9.95μg/m³
PM2.5
34.91μg/m³
PM10
28.61ppb
O3
0.81ppb
SO2
10.30ppb
NO2
0.27ppm
CO
AQI 52
Moderate
9.83μg/m³
PM2.5
27.18μg/m³
PM10
25.07ppb
O3
0.81ppb
SO2
13.97ppb
NO2
0.27ppm
CO
AQI 52
Moderate
9.88μg/m³
PM2.5
26.21μg/m³
PM10
24.24ppb
O3
0.82ppb
SO2
14.64ppb
NO2
0.27ppm
CO
AQI 49
Good
8.78μg/m³
PM2.5
25.81μg/m³
PM10
26.51ppb
O3
0.81ppb
SO2
13.38ppb
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 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 03:00:00 on 2026-07-24.
In the last 24 hours, the best air quality in Chula Vista, California was observed at 08:00:00 on 2026-07-23.
As of now, the AQI in Chula Vista, California is 52, indicating Moderate 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 9.561 μg/m3.
The PM10 concentration in Chula Vista, California is 28.234 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Chula Vista, California is 0.271 ppm.
Currently, Chula Vista, California has a sulfur dioxide (SO2) concentration of 0.809 ppb.
The current ozone (O3) level in Chula Vista, California at the moment is 30.131 ppm.
Nitrogen dioxide (NO2) level in Chula Vista, California at the moment is 9.683 ppb.
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