Stay updated with real-time air quality in Lafayette, 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
Lafayette, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.86 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.38 μg/m³
0
55
155
255
425
605+
24.03 ppb
0
55
71
86
201
201+
0.21 ppb
0
36
76
186
605
1005+
2.92 ppb
0
54
101
361
1250
2050+
0.31 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Lafayette, California
Lafayette, California
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AQI 23
Good
4.11μg/m³
PM2.5
19.15μg/m³
PM10
24.81ppb
O3
0.13ppb
SO2
2.60ppb
NO2
0.30ppm
CO
AQI 21
Good
3.45μg/m³
PM2.5
20.20μg/m³
PM10
23.03ppb
O3
0.30ppb
SO2
3.65ppb
NO2
0.32ppm
CO
AQI 22
Good
3.98μg/m³
PM2.5
18.73μg/m³
PM10
24.12ppb
O3
0.25ppb
SO2
2.84ppb
NO2
0.27ppm
CO
AQI 23
Good
4.10μg/m³
PM2.5
19.75μg/m³
PM10
24.55ppb
O3
0.17ppb
SO2
2.74ppb
NO2
0.29ppm
CO
AQI 23
Good
4.11μg/m³
PM2.5
18.94μg/m³
PM10
24.90ppb
O3
0.11ppb
SO2
2.54ppb
NO2
0.30ppm
CO
AQI 22
Good
3.23μg/m³
PM2.5
14.16μg/m³
PM10
23.83ppb
O3
0.29ppb
SO2
3.03ppb
NO2
0.31ppm
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 Lafayette, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Lafayette, California was at its worst at 12:00:00 on 2026-09-20.
In the last 24 hours, the best air quality in Lafayette, California was observed at 05:00:00 on 2026-09-21.
As of now, the AQI in Lafayette, California is 22, indicating Good conditions.
Lafayette, California air has the highest levels of O3.
Poor air quality in Lafayette, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Lafayette, California are currently 3.859 μg/m3.
The PM10 concentration in Lafayette, California is 17.384 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Lafayette, California is 0.311 ppm.
Currently, Lafayette, California has a sulfur dioxide (SO2) concentration of 0.214 ppb.
The current ozone (O3) level in Lafayette, California at the moment is 24.027 ppm.
Nitrogen dioxide (NO2) level in Lafayette, California at the moment is 2.92 ppb.
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