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)
15
Good
Exeter, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.79 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.06 μg/m³
0
55
155
255
425
605+
5.88 ppb
0
55
71
86
201
201+
0.60 ppb
0
36
76
186
605
1005+
6.17 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Exeter, California
Exeter, California
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AQI 16
Good
3.42μg/m³
PM2.5
16.38μg/m³
PM10
6.85ppb
O3
0.49ppb
SO2
5.44ppb
NO2
0.31ppm
CO
AQI 33
Good
6.26μg/m³
PM2.5
18.05μg/m³
PM10
7.94ppb
O3
0.50ppb
SO2
6.16ppb
NO2
0.33ppm
CO
AQI 27
Good
5.08μg/m³
PM2.5
21.73μg/m³
PM10
3.18ppb
O3
0.51ppb
SO2
3.85ppb
NO2
0.25ppm
CO
AQI 44
Good
8.45μg/m³
PM2.5
27.88μg/m³
PM10
6.79ppb
O3
0.51ppb
SO2
5.30ppb
NO2
0.31ppm
CO
AQI 16
Good
2.90μg/m³
PM2.5
12.21μg/m³
PM10
7.50ppb
O3
0.51ppb
SO2
6.50ppb
NO2
0.34ppm
CO
AQI 27
Good
5.10μg/m³
PM2.5
13.40μg/m³
PM10
9.04ppb
O3
0.54ppb
SO2
6.30ppb
NO2
0.22ppm
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 2025-12-13.
In the last 24 hours, the best air quality in Exeter, California was observed at 06:00:00 on 2025-12-13.
As of now, the AQI in Exeter, California is 15, indicating Good conditions.
Exeter, California air has the highest levels of PM10.
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 1.786 μg/m3.
The PM10 concentration in Exeter, California is 16.064 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Exeter, California is 0.303 ppm.
Currently, Exeter, California has a sulfur dioxide (SO2) concentration of 0.605 ppb.
The current ozone (O3) level in Exeter, California at the moment is 5.885 ppm.
Nitrogen dioxide (NO2) level in Exeter, California at the moment is 6.169 ppb.
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