Stay updated with real-time air quality in Cornwall, UK 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)
32
Good
Cornwall, UK
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.13 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.31 μg/m³
0
55
155
255
425
605+
35.41 ppb
0
55
71
86
201
201+
0.19 ppb
0
36
76
186
605
1005+
2.71 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Cornwall, UK
Cornwall, UK
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| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 27
Good
3.43μg/m³
PM2.5
10.38μg/m³
PM10
28.66ppb
O3
0.49ppb
SO2
9.07ppb
NO2
0.31ppm
CO
AQI 27
Good
3.94μg/m³
PM2.5
15.65μg/m³
PM10
29.16ppb
O3
0.49ppb
SO2
7.34ppb
NO2
0.31ppm
CO
AQI 27
Good
3.89μg/m³
PM2.5
11.26μg/m³
PM10
28.77ppb
O3
0.48ppb
SO2
11.35ppb
NO2
0.31ppm
CO
AQI 25
Good
4.26μg/m³
PM2.5
16.12μg/m³
PM10
26.86ppb
O3
0.43ppb
SO2
12.70ppb
NO2
0.31ppm
CO
AQI 27
Good
4.54μg/m³
PM2.5
10.14μg/m³
PM10
26.72ppb
O3
0.47ppb
SO2
19.98ppb
NO2
0.31ppm
CO
AQI 25
Good
4.28μg/m³
PM2.5
10.47μg/m³
PM10
26.95ppb
O3
0.45ppb
SO2
17.80ppb
NO2
0.31ppm
CO
Air quality and pollutant data for Cornwall, UK 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 Cornwall, UK is updated every hour for accuracy.
In the past 24 hours, the air quality in Cornwall, UK was at its worst at 09:00:00 on 2026-09-28.
In the last 24 hours, the best air quality in Cornwall, UK was observed at 02:00:00 on 2026-09-28.
As of now, the AQI in Cornwall, UK is 32, indicating Good conditions.
Cornwall, UK air has the highest levels of O3.
Poor air quality in Cornwall, UK means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Cornwall, UK are currently 3.131 μg/m3.
The PM10 concentration in Cornwall, UK is 8.307 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Cornwall, UK is 0.167 ppm.
Currently, Cornwall, UK has a sulfur dioxide (SO2) concentration of 0.19 ppb.
The current ozone (O3) level in Cornwall, UK at the moment is 35.41 ppm.
Nitrogen dioxide (NO2) level in Cornwall, UK at the moment is 2.707 ppb.
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