Stay updated with real-time air quality in Fairfield, 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
Fairfield, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
5.18 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.77 μg/m³
0
55
155
255
425
605+
9.95 ppb
0
55
71
86
201
201+
0.70 ppb
0
36
76
186
605
1005+
12.79 ppb
0
54
101
361
1250
2050+
0.46 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Fairfield, California
Fairfield, California
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AQI 44
Good
7.86μg/m³
PM2.5
33.87μg/m³
PM10
35.51ppb
O3
0.49ppb
SO2
2.52ppb
NO2
0.32ppm
CO
AQI 33
Good
6.27μg/m³
PM2.5
28.33μg/m³
PM10
34.07ppb
O3
0.48ppb
SO2
2.60ppb
NO2
0.24ppm
CO
AQI 44
Good
8.38μg/m³
PM2.5
36.87μg/m³
PM10
35.51ppb
O3
0.41ppb
SO2
2.69ppb
NO2
0.30ppm
CO
AQI 49
Good
8.66μg/m³
PM2.5
36.81μg/m³
PM10
31.57ppb
O3
0.44ppb
SO2
5.68ppb
NO2
0.34ppm
CO
AQI 49
Good
9.31μg/m³
PM2.5
41.60μg/m³
PM10
33.51ppb
O3
0.86ppb
SO2
2.16ppb
NO2
0.33ppm
CO
AQI 44
Good
8.03μg/m³
PM2.5
35.17μg/m³
PM10
35.95ppb
O3
0.31ppb
SO2
2.79ppb
NO2
0.30ppm
CO
The air quality data for California, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Fairfield, California are available every hour.
Fairfield, California experienced its worst air quality at 04:00:00, 2025-10-22.
The best air quality in Fairfield, California was observed at 03:00:00 on 2025-10-22.
The air quality in Fairfield, California right now is Good, with an AQI of 44.
In Fairfield, California, PM2.5 is the most frequently found pollutant.
When air quality in Fairfield, California is compromised, staying indoors and wearing a mask can reduce health risks.
Fairfield, California currently has a PM2.5 concentration of 7.858 μg/m3.
Fairfield, California currently has a PM10 concentration of 33.872 μg/m3.
The current carbon monoxide (CO) level in Fairfield, California is 0.315 ppm.
The current sulfur dioxide (SO2) concentration in Fairfield, California is 0.494 ppb.
Fairfield, California currently has an ozone (O3) concentration of 35.505 ppm.
The current level of nitrogen dioxide (NO2) in Fairfield, California is 2.523 ppb.
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