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
8.62 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.03 μg/m³
0
55
155
255
425
605+
24.20 ppb
0
55
71
86
201
201+
0.78 ppb
0
36
76
186
605
1005+
6.64 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Exeter, California
Exeter, California
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AQI 52
Moderate
9.52μg/m³
PM2.5
31.74μg/m³
PM10
25.31ppb
O3
0.79ppb
SO2
6.06ppb
NO2
0.18ppm
CO
AQI 44
Good
7.59μg/m³
PM2.5
29.30μg/m³
PM10
25.05ppb
O3
0.75ppb
SO2
9.98ppb
NO2
0.19ppm
CO
AQI 52
Moderate
10.50μg/m³
PM2.5
46.71μg/m³
PM10
26.94ppb
O3
0.83ppb
SO2
4.97ppb
NO2
0.18ppm
CO
AQI 54
Moderate
10.53μg/m³
PM2.5
35.81μg/m³
PM10
20.86ppb
O3
0.82ppb
SO2
8.58ppb
NO2
0.18ppm
CO
AQI 49
Good
9.13μg/m³
PM2.5
40.55μg/m³
PM10
24.38ppb
O3
0.71ppb
SO2
8.26ppb
NO2
0.23ppm
CO
AQI 52
Moderate
9.76μg/m³
PM2.5
27.67μg/m³
PM10
22.16ppb
O3
0.87ppb
SO2
7.46ppb
NO2
0.15ppm
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 02:00:00 on 2026-08-17.
In the last 24 hours, the best air quality in Exeter, California was observed at 09:00:00 on 2026-08-17.
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 8.615 μg/m3.
The PM10 concentration in Exeter, California is 26.033 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Exeter, California is 0.182 ppm.
Currently, Exeter, California has a sulfur dioxide (SO2) concentration of 0.779 ppb.
The current ozone (O3) level in Exeter, California at the moment is 24.205 ppm.
Nitrogen dioxide (NO2) level in Exeter, California at the moment is 6.638 ppb.
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