Stay updated with real-time air quality in Exeter, 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)
29
Good
Exeter, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.06 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.84 μg/m³
0
55
155
255
425
605+
31.18 ppb
0
55
71
86
201
201+
0.55 ppb
0
36
76
186
605
1005+
5.50 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Exeter, California
Exeter, California
Scroll To Air Quality MapLoading...
AQI 41
Good
6.79μg/m³
PM2.5
29.02μg/m³
PM10
44.17ppb
O3
0.55ppb
SO2
4.37ppb
NO2
0.11ppm
CO
AQI 38
Good
6.78μg/m³
PM2.5
30.80μg/m³
PM10
34.01ppb
O3
0.56ppb
SO2
2.59ppb
NO2
0.11ppm
CO
AQI 44
Good
7.80μg/m³
PM2.5
34.77μg/m³
PM10
37.80ppb
O3
0.55ppb
SO2
3.11ppb
NO2
0.11ppm
CO
AQI 40
Good
6.69μg/m³
PM2.5
37.03μg/m³
PM10
43.25ppb
O3
0.55ppb
SO2
3.31ppb
NO2
0.11ppm
CO
AQI 33
Good
6.50μg/m³
PM2.5
29.22μg/m³
PM10
34.33ppb
O3
0.56ppb
SO2
3.35ppb
NO2
0.11ppm
CO
AQI 38
Good
7.22μg/m³
PM2.5
37.99μg/m³
PM10
32.39ppb
O3
0.52ppb
SO2
3.54ppb
NO2
0.11ppm
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 Exeter, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Exeter, California was at its worst at 12:00:00 on 2026-06-09.
In the last 24 hours, the best air quality in Exeter, California was observed at 01:00:00 on 2026-06-08.
As of now, the AQI in Exeter, California is 42, indicating Good conditions.
Exeter, California air has the highest levels of O3.
Poor air quality in Exeter, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Exeter, California are currently 6.562 μg/m3.
The PM10 concentration in Exeter, California is 28.894 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Exeter, California is 0.11 ppm.
Currently, Exeter, California has a sulfur dioxide (SO2) concentration of 0.554 ppb.
The current ozone (O3) level in Exeter, California at the moment is 45.47 ppm.
Nitrogen dioxide (NO2) level in Exeter, California at the moment is 3.788 ppb.
All Rights Reserved © Ambee Inc. 2025