Stay updated with real-time air quality in Vacaville, 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
Vacaville, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.95 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.31 μg/m³
0
55
155
255
425
605+
6.79 ppb
0
55
71
86
201
201+
0.70 ppb
0
36
76
186
605
1005+
13.43 ppb
0
54
101
361
1250
2050+
0.40 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Vacaville, California
Vacaville, California
Scroll To Air Quality MapLoading...
AQI 36
Good
5.28μg/m³
PM2.5
22.45μg/m³
PM10
38.86ppb
O3
1.03ppb
SO2
5.59ppb
NO2
0.33ppm
CO
AQI 36
Good
5.28μg/m³
PM2.5
22.45μg/m³
PM10
38.86ppb
O3
1.03ppb
SO2
5.59ppb
NO2
0.33ppm
CO
AQI 38
Good
7.27μg/m³
PM2.5
31.80μg/m³
PM10
31.61ppb
O3
1.12ppb
SO2
3.66ppb
NO2
0.23ppm
CO
AQI 31
Good
5.47μg/m³
PM2.5
24.69μg/m³
PM10
34.16ppb
O3
1.22ppb
SO2
6.35ppb
NO2
0.34ppm
CO
AQI 38
Good
7.24μg/m³
PM2.5
31.96μg/m³
PM10
31.16ppb
O3
1.13ppb
SO2
2.63ppb
NO2
0.23ppm
CO
AQI 33
Good
6.29μg/m³
PM2.5
27.70μg/m³
PM10
33.03ppb
O3
0.72ppb
SO2
3.17ppb
NO2
0.30ppm
CO
Air quality measurements for California, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Vacaville, California is updated on an hourly basis.
The worst air quality in Vacaville, California was recorded at 03:00:00 on 2025-10-22.
The best air quality in Vacaville, California was recorded at 04:00:00 on 2025-10-22.
The real-time air quality index in Vacaville, California is 34, currently categorized as Good.
The most common pollutant in Vacaville, California is O3.
If the air quality in Vacaville, California is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Vacaville, California at present are 4.594 μg/m3.
The current PM10 levels in Vacaville, California are 19.822 μg/m3.
The current carbon monoxide (CO) level in Vacaville, California is 0.259 ppm.
The current sulfur dioxide (SO2) levels in Vacaville, California are 1.096 ppb.
The current ozone (O3) levels at Vacaville, California is 37.036 ppm.
The current nitrogen dioxide (NO2) levels at Vacaville, California is 6.502 ppb.
All Rights Reserved © Ambee Inc. 2025