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)
31
Good
Cornwall, UK
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.46 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.86 μg/m³
0
55
155
255
425
605+
32.76 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
1.44 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Cornwall, UK
Cornwall, UK
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| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 33
Good
3.52μg/m³
PM2.5
8.11μg/m³
PM10
36.27ppb
O3
0.48ppb
SO2
2.47ppb
NO2
0.13ppm
CO
AQI 33
Good
3.56μg/m³
PM2.5
8.36μg/m³
PM10
36.08ppb
O3
0.51ppb
SO2
2.55ppb
NO2
0.13ppm
CO
AQI 32
Good
3.10μg/m³
PM2.5
7.50μg/m³
PM10
34.67ppb
O3
0.51ppb
SO2
3.82ppb
NO2
0.11ppm
CO
AQI 30
Good
3.49μg/m³
PM2.5
7.72μg/m³
PM10
32.46ppb
O3
0.59ppb
SO2
5.08ppb
NO2
0.09ppm
CO
AQI 32
Good
3.00μg/m³
PM2.5
7.36μg/m³
PM10
34.96ppb
O3
0.51ppb
SO2
9.20ppb
NO2
0.10ppm
CO
AQI 29
Good
3.53μg/m³
PM2.5
8.35μg/m³
PM10
31.35ppb
O3
0.55ppb
SO2
9.35ppb
NO2
0.09ppm
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 11:00:00 on 2026-02-08.
In the last 24 hours, the best air quality in Cornwall, UK was observed at 02:00:00 on 2026-02-08.
As of now, the AQI in Cornwall, UK is 31, 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 3.464 μg/m3.
The PM10 concentration in Cornwall, UK is 9.859 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Cornwall, UK is 0.143 ppm.
Currently, Cornwall, UK has a sulfur dioxide (SO2) concentration of 0.196 ppb.
The current ozone (O3) level in Cornwall, UK at the moment is 32.758 ppm.
Nitrogen dioxide (NO2) level in Cornwall, UK at the moment is 1.439 ppb.
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