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)
40
Good
Chula Vista, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.90 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.12 μg/m³
0
55
155
255
425
605+
43.28 ppb
0
55
71
86
201
201+
0.38 ppb
0
36
76
186
605
1005+
4.62 ppb
0
54
101
361
1250
2050+
0.25 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 38
Good
6.50μg/m³
PM2.5
26.23μg/m³
PM10
39.07ppb
O3
0.41ppb
SO2
9.79ppb
NO2
0.23ppm
CO
AQI 40
Good
6.40μg/m³
PM2.5
29.37μg/m³
PM10
42.82ppb
O3
0.40ppb
SO2
9.31ppb
NO2
0.23ppm
CO
AQI 44
Good
7.52μg/m³
PM2.5
33.79μg/m³
PM10
42.81ppb
O3
0.40ppb
SO2
9.76ppb
NO2
0.23ppm
CO
AQI 38
Good
6.53μg/m³
PM2.5
24.10μg/m³
PM10
36.72ppb
O3
0.41ppb
SO2
9.79ppb
NO2
0.23ppm
CO
AQI 38
Good
6.57μg/m³
PM2.5
23.15μg/m³
PM10
35.39ppb
O3
0.41ppb
SO2
9.90ppb
NO2
0.23ppm
CO
AQI 38
Good
5.09μg/m³
PM2.5
21.02μg/m³
PM10
40.75ppb
O3
0.39ppb
SO2
5.64ppb
NO2
0.22ppm
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 09:00:00 on 2026-02-08.
In the last 24 hours, the best air quality in Chula Vista, California was observed at 07:00:00 on 2026-02-08.
As of now, the AQI in Chula Vista, California is 40, 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 5.899 μg/m3.
The PM10 concentration in Chula Vista, California is 26.117 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Chula Vista, California is 0.246 ppm.
Currently, Chula Vista, California has a sulfur dioxide (SO2) concentration of 0.382 ppb.
The current ozone (O3) level in Chula Vista, California at the moment is 43.28 ppm.
Nitrogen dioxide (NO2) level in Chula Vista, California at the moment is 4.615 ppb.
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