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

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.59 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.86 μg/m³
0
55
155
255
425
605+
33.51 ppb
0
55
71
86
201
201+
0.09 ppb
0
36
76
186
605
1005+
0.96 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Penryn, Cornwall
Penryn, Cornwall
Scroll To Air Quality MapLoading...
AQI 22
Good
4.12μg/m³
PM2.5
7.95μg/m³
PM10
23.57ppb
O3
0.20ppb
SO2
4.65ppb
NO2
0.11ppm
CO
AQI 27
Good
4.92μg/m³
PM2.5
8.91μg/m³
PM10
23.34ppb
O3
0.18ppb
SO2
3.80ppb
NO2
0.11ppm
CO
AQI 27
Good
4.54μg/m³
PM2.5
8.24μg/m³
PM10
21.49ppb
O3
0.19ppb
SO2
4.66ppb
NO2
0.11ppm
CO
AQI 23
Good
4.14μg/m³
PM2.5
8.17μg/m³
PM10
25.37ppb
O3
0.17ppb
SO2
3.60ppb
NO2
0.11ppm
CO
AQI 23
Good
4.47μg/m³
PM2.5
8.64μg/m³
PM10
24.50ppb
O3
0.17ppb
SO2
3.56ppb
NO2
0.11ppm
CO
AQI 27
Good
5.17μg/m³
PM2.5
8.60μg/m³
PM10
21.61ppb
O3
0.15ppb
SO2
4.23ppb
NO2
0.11ppm
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 Penryn, Cornwall is updated every hour for accuracy.
In the past 24 hours, the air quality in Penryn, Cornwall was at its worst at 11:00:00 on 2025-11-06.
In the last 24 hours, the best air quality in Penryn, Cornwall was observed at 06:00:00 on 2025-11-06.
As of now, the AQI in Penryn, Cornwall is 23, indicating Good conditions.
Penryn, Cornwall air has the highest levels of O3.
Poor air quality in Penryn, Cornwall means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Penryn, Cornwall are currently 4.072 μg/m3.
The PM10 concentration in Penryn, Cornwall is 7.608 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Penryn, Cornwall is 0.114 ppm.
Currently, Penryn, Cornwall has a sulfur dioxide (SO2) concentration of 0.199 ppb.
The current ozone (O3) level in Penryn, Cornwall at the moment is 24.937 ppm.
Nitrogen dioxide (NO2) level in Penryn, Cornwall at the moment is 4.017 ppb.
All Rights Reserved © Ambee Inc. 2025