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)
33
Good
Cornwall, UK
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.62 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.36 μg/m³
0
55
155
255
425
605+
32.72 ppb
0
55
71
86
201
201+
0.26 ppb
0
36
76
186
605
1005+
2.93 ppb
0
54
101
361
1250
2050+
0.12 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 33
Good
4.66μg/m³
PM2.5
12.32μg/m³
PM10
35.72ppb
O3
0.19ppb
SO2
2.58ppb
NO2
0.12ppm
CO
AQI 34
Good
4.63μg/m³
PM2.5
13.73μg/m³
PM10
36.70ppb
O3
0.18ppb
SO2
3.32ppb
NO2
0.12ppm
CO
AQI 33
Good
4.42μg/m³
PM2.5
10.58μg/m³
PM10
35.87ppb
O3
0.23ppb
SO2
2.60ppb
NO2
0.12ppm
CO
AQI 32
Good
4.72μg/m³
PM2.5
11.77μg/m³
PM10
35.41ppb
O3
0.21ppb
SO2
3.61ppb
NO2
0.12ppm
CO
AQI 34
Good
4.42μg/m³
PM2.5
10.67μg/m³
PM10
37.43ppb
O3
0.26ppb
SO2
3.62ppb
NO2
0.12ppm
CO
AQI 34
Good
4.12μg/m³
PM2.5
10.83μg/m³
PM10
36.56ppb
O3
0.26ppb
SO2
3.15ppb
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 07:00:00 on 2025-12-27.
In the last 24 hours, the best air quality in Cornwall, UK was observed at 01:00:00 on 2025-12-28.
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 5.022 μg/m3.
The PM10 concentration in Cornwall, UK is 12.931 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Cornwall, UK is 0.12 ppm.
Currently, Cornwall, UK has a sulfur dioxide (SO2) concentration of 0.221 ppb.
The current ozone (O3) level in Cornwall, UK at the moment is 32.629 ppm.
Nitrogen dioxide (NO2) level in Cornwall, UK at the moment is 2.848 ppb.
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