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)
28
Good
Penryn, Cornwall
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.49 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.97 μg/m³
0
55
155
255
425
605+
30.39 ppb
0
55
71
86
201
201+
0.11 ppb
0
36
76
186
605
1005+
1.35 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Penryn, Cornwall
Penryn, Cornwall
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AQI 28
Good
4.50μg/m³
PM2.5
10.19μg/m³
PM10
30.20ppb
O3
0.13ppb
SO2
1.66ppb
NO2
0.13ppm
CO
AQI 28
Good
4.50μg/m³
PM2.5
9.93μg/m³
PM10
29.78ppb
O3
0.09ppb
SO2
1.16ppb
NO2
0.14ppm
CO
AQI 26
Good
4.44μg/m³
PM2.5
9.31μg/m³
PM10
27.79ppb
O3
0.16ppb
SO2
1.88ppb
NO2
0.13ppm
CO
AQI 30
Good
4.32μg/m³
PM2.5
10.66μg/m³
PM10
32.44ppb
O3
0.08ppb
SO2
0.75ppb
NO2
0.14ppm
CO
AQI 29
Good
4.25μg/m³
PM2.5
10.39μg/m³
PM10
31.39ppb
O3
0.08ppb
SO2
0.88ppb
NO2
0.14ppm
CO
AQI 26
Good
4.38μg/m³
PM2.5
8.93μg/m³
PM10
27.98ppb
O3
0.12ppb
SO2
1.60ppb
NO2
0.13ppm
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 04:00:00 on 2026-09-09.
In the last 24 hours, the best air quality in Penryn, Cornwall was observed at 11:00:00 on 2026-09-09.
As of now, the AQI in Penryn, Cornwall is 28, 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 4.486 μg/m3.
The PM10 concentration in Penryn, Cornwall is 9.967 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Penryn, Cornwall is 0.134 ppm.
Currently, Penryn, Cornwall has a sulfur dioxide (SO2) concentration of 0.108 ppb.
The current ozone (O3) level in Penryn, Cornwall at the moment is 30.389 ppm.
Nitrogen dioxide (NO2) level in Penryn, Cornwall at the moment is 1.348 ppb.
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