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)
49
Good
Exeter, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.32 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
32.97 μg/m³
0
55
155
255
425
605+
17.17 ppb
0
55
71
86
201
201+
0.51 ppb
0
36
76
186
605
1005+
8.39 ppb
0
54
101
361
1250
2050+
0.21 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 52
Moderate
9.60μg/m³
PM2.5
37.18μg/m³
PM10
18.83ppb
O3
0.51ppb
SO2
8.28ppb
NO2
0.21ppm
CO
AQI 49
Good
9.27μg/m³
PM2.5
32.63μg/m³
PM10
17.88ppb
O3
0.50ppb
SO2
9.47ppb
NO2
0.22ppm
CO
AQI 49
Good
9.11μg/m³
PM2.5
46.79μg/m³
PM10
19.96ppb
O3
0.59ppb
SO2
8.70ppb
NO2
0.21ppm
CO
AQI 49
Good
9.40μg/m³
PM2.5
37.34μg/m³
PM10
18.73ppb
O3
0.59ppb
SO2
8.64ppb
NO2
0.21ppm
CO
AQI 54
Moderate
10.68μg/m³
PM2.5
47.53μg/m³
PM10
18.63ppb
O3
0.48ppb
SO2
9.04ppb
NO2
0.24ppm
CO
AQI 49
Good
9.44μg/m³
PM2.5
36.91μg/m³
PM10
18.72ppb
O3
0.55ppb
SO2
9.81ppb
NO2
0.21ppm
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 2026-09-21.
In the last 24 hours, the best air quality in Exeter, California was observed at 12:00:00 on 2026-09-21.
As of now, the AQI in Exeter, California is 49, indicating Good conditions.
Exeter, California air has the highest levels of PM2.5.
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 9.323 μg/m3.
The PM10 concentration in Exeter, California is 32.969 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Exeter, California is 0.214 ppm.
Currently, Exeter, California has a sulfur dioxide (SO2) concentration of 0.51 ppb.
The current ozone (O3) level in Exeter, California at the moment is 17.171 ppm.
Nitrogen dioxide (NO2) level in Exeter, California at the moment is 8.389 ppb.
All Rights Reserved © Ambee Inc. 2025