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)
42
Good
Exeter, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.56 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.89 μg/m³
0
55
155
255
425
605+
45.47 ppb
0
55
71
86
201
201+
0.55 ppb
0
36
76
186
605
1005+
3.79 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Exeter, California
Exeter, California
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AQI 44
Good
8.20μg/m³
PM2.5
36.21μg/m³
PM10
45.96ppb
O3
0.24ppb
SO2
2.73ppb
NO2
0.11ppm
CO
AQI 44
Good
7.54μg/m³
PM2.5
33.36μg/m³
PM10
44.31ppb
O3
0.23ppb
SO2
1.89ppb
NO2
0.11ppm
CO
AQI 49
Good
8.64μg/m³
PM2.5
37.78μg/m³
PM10
47.52ppb
O3
0.24ppb
SO2
2.56ppb
NO2
0.11ppm
CO
AQI 44
Good
7.82μg/m³
PM2.5
34.17μg/m³
PM10
46.49ppb
O3
0.22ppb
SO2
1.83ppb
NO2
0.10ppm
CO
AQI 44
Good
7.99μg/m³
PM2.5
34.94μg/m³
PM10
46.60ppb
O3
0.23ppb
SO2
1.50ppb
NO2
0.10ppm
CO
AQI 44
Good
7.81μg/m³
PM2.5
34.09μg/m³
PM10
47.26ppb
O3
0.23ppb
SO2
1.66ppb
NO2
0.10ppm
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 07:00:00 on 2026-06-08.
As of now, the AQI in Exeter, California is 44, 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 7.744 μg/m3.
The PM10 concentration in Exeter, California is 34.162 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Exeter, California is 0.109 ppm.
Currently, Exeter, California has a sulfur dioxide (SO2) concentration of 0.24 ppb.
The current ozone (O3) level in Exeter, California at the moment is 44.459 ppm.
Nitrogen dioxide (NO2) level in Exeter, California at the moment is 2.616 ppb.
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