Stay updated with real-time air quality in Vallejo, 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)
22
Good
Vallejo, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.79 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.00 μg/m³
0
55
155
255
425
605+
20.04 ppb
0
55
71
86
201
201+
0.40 ppb
0
36
76
186
605
1005+
0.82 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Vallejo, California
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AQI 27
Good
5.23μg/m³
PM2.5
22.49μg/m³
PM10
17.35ppb
O3
0.50ppb
SO2
2.90ppb
NO2
0.20ppm
CO
AQI 16
Good
2.91μg/m³
PM2.5
12.78μg/m³
PM10
16.36ppb
O3
0.62ppb
SO2
2.19ppb
NO2
0.14ppm
CO
AQI 22
Good
4.10μg/m³
PM2.5
17.91μg/m³
PM10
15.50ppb
O3
0.72ppb
SO2
2.17ppb
NO2
0.25ppm
CO
AQI 16
Good
2.91μg/m³
PM2.5
12.78μg/m³
PM10
16.36ppb
O3
0.62ppb
SO2
2.19ppb
NO2
0.14ppm
CO
AQI 22
Good
4.42μg/m³
PM2.5
19.18μg/m³
PM10
15.64ppb
O3
0.63ppb
SO2
2.31ppb
NO2
0.25ppm
CO
AQI 16
Good
2.81μg/m³
PM2.5
12.36μg/m³
PM10
16.29ppb
O3
0.63ppb
SO2
2.17ppb
NO2
0.13ppm
CO
Air quality data and pollutant measurements for California, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Vallejo, California is updated every hour.
The worst air quality in Vallejo, California in the last 24 hours was observed at 02:00:00 on 2025-07-12.
In the last 24 hrs, the best air quality in Vallejo, California was observed at 02:00:00 on 2025-07-12.
The current air quality in Vallejo, California is 33, categorized as Good based on real-time data.
The most common pollutant in Vallejo, California is PM2.5.
If the air quality in Vallejo, California is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Vallejo, California is 5.649 μg/m3.
The current PM10 concentration at Vallejo, California is 24.761 μg/m3.
The current carbon monoxide (CO) concentration at Vallejo, California is 0.2 ppm.
The current sulfur dioxide (SO2) concentration at Vallejo, California is 0.408 ppb.
The current ozone (O3) concentration at Vallejo, California is 17.943 ppm.
The current nitrogen dioxide (NO2) concentration at Vallejo, California is 3.078 ppb.
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