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)
44
Good
Cornwall, UK
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.45 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.88 μg/m³
0
55
155
255
425
605+
19.82 ppb
0
55
71
86
201
201+
0.25 ppb
0
36
76
186
605
1005+
1.00 ppb
0
54
101
361
1250
2050+
0.09 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Cornwall, UK
Cornwall, UK
Scroll To Air Quality MapLoading...
| No results found | |||||||
| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 16
Good
3.26μg/m³
PM2.5
8.09μg/m³
PM10
15.36ppb
O3
0.99ppb
SO2
1.66ppb
NO2
0.12ppm
CO
AQI 16
Good
2.68μg/m³
PM2.5
7.29μg/m³
PM10
15.56ppb
O3
0.97ppb
SO2
1.97ppb
NO2
0.12ppm
CO
AQI 16
Good
3.41μg/m³
PM2.5
7.36μg/m³
PM10
16.62ppb
O3
0.90ppb
SO2
1.64ppb
NO2
0.12ppm
CO
AQI 27
Good
4.54μg/m³
PM2.5
16.02μg/m³
PM10
18.45ppb
O3
0.56ppb
SO2
1.52ppb
NO2
0.12ppm
CO
AQI 22
Good
3.78μg/m³
PM2.5
9.77μg/m³
PM10
16.82ppb
O3
0.95ppb
SO2
1.72ppb
NO2
0.12ppm
CO
AQI 22
Good
4.24μg/m³
PM2.5
7.83μg/m³
PM10
17.67ppb
O3
0.88ppb
SO2
1.79ppb
NO2
0.12ppm
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 01:00:00 on 2026-06-11.
In the last 24 hours, the best air quality in Cornwall, UK was observed at 08:00:00 on 2026-06-11.
As of now, the AQI in Cornwall, UK is 44, indicating Good conditions.
Cornwall, UK air has the highest levels of PM2.5.
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 8.452 μg/m3.
The PM10 concentration in Cornwall, UK is 20.882 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Cornwall, UK is 0.088 ppm.
Currently, Cornwall, UK has a sulfur dioxide (SO2) concentration of 0.246 ppb.
The current ozone (O3) level in Cornwall, UK at the moment is 19.816 ppm.
Nitrogen dioxide (NO2) level in Cornwall, UK at the moment is 1.004 ppb.
All Rights Reserved © Ambee Inc. 2025