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)
38
Good
Exeter, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.24 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.49 μg/m³
0
55
155
255
425
605+
34.86 ppb
0
55
71
86
201
201+
0.55 ppb
0
36
76
186
605
1005+
13.62 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Exeter, California
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AQI 44
Good
8.23μg/m³
PM2.5
24.74μg/m³
PM10
30.38ppb
O3
0.55ppb
SO2
13.30ppb
NO2
0.28ppm
CO
AQI 38
Good
7.15μg/m³
PM2.5
33.99μg/m³
PM10
34.23ppb
O3
0.39ppb
SO2
11.80ppb
NO2
0.29ppm
CO
AQI 52
Moderate
9.61μg/m³
PM2.5
42.65μg/m³
PM10
16.03ppb
O3
0.54ppb
SO2
13.97ppb
NO2
0.28ppm
CO
AQI 49
Good
9.47μg/m³
PM2.5
34.56μg/m³
PM10
20.25ppb
O3
0.55ppb
SO2
12.91ppb
NO2
0.28ppm
CO
AQI 44
Good
7.79μg/m³
PM2.5
33.76μg/m³
PM10
19.43ppb
O3
0.39ppb
SO2
11.29ppb
NO2
0.29ppm
CO
AQI 38
Good
7.43μg/m³
PM2.5
30.54μg/m³
PM10
22.47ppb
O3
0.43ppb
SO2
13.53ppb
NO2
0.29ppm
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 03:00:00 on 2026-03-06.
In the last 24 hours, the best air quality in Exeter, California was observed at 09:00:00 on 2026-03-05.
As of now, the AQI in Exeter, California is 38, 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 7.235 μg/m3.
The PM10 concentration in Exeter, California is 28.49 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Exeter, California is 0.28 ppm.
Currently, Exeter, California has a sulfur dioxide (SO2) concentration of 0.553 ppb.
The current ozone (O3) level in Exeter, California at the moment is 34.859 ppm.
Nitrogen dioxide (NO2) level in Exeter, California at the moment is 13.615 ppb.
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