Stay updated with real-time air quality in Penzance, 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)
60
Moderate
Penzance, Cornwall
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
14.26 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.72 μg/m³
0
55
155
255
425
605+
41.63 ppb
0
55
71
86
201
201+
0.09 ppb
0
36
76
186
605
1005+
0.70 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Penzance, Cornwall
Penzance, Cornwall
Scroll To Air Quality MapLoading...
AQI 62
Moderate
15.22μg/m³
PM2.5
20.71μg/m³
PM10
38.79ppb
O3
0.11ppb
SO2
0.64ppb
NO2
0.13ppm
CO
AQI 62
Moderate
14.95μg/m³
PM2.5
20.95μg/m³
PM10
39.68ppb
O3
0.12ppb
SO2
0.65ppb
NO2
0.12ppm
CO
AQI 62
Moderate
14.59μg/m³
PM2.5
20.81μg/m³
PM10
40.30ppb
O3
0.13ppb
SO2
0.67ppb
NO2
0.12ppm
CO
AQI 62
Moderate
15.29μg/m³
PM2.5
20.11μg/m³
PM10
37.82ppb
O3
0.13ppb
SO2
0.93ppb
NO2
0.13ppm
CO
AQI 62
Moderate
15.40μg/m³
PM2.5
20.19μg/m³
PM10
37.82ppb
O3
0.14ppb
SO2
1.33ppb
NO2
0.13ppm
CO
AQI 62
Moderate
15.09μg/m³
PM2.5
19.48μg/m³
PM10
36.99ppb
O3
0.12ppb
SO2
0.80ppb
NO2
0.12ppm
CO
Air quality data and pollutant measurements for Cornwall, UK adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Penzance, Cornwall is updated every hour.
The worst air quality in Penzance, Cornwall in the last 24 hours was observed at 06:00:00 on 2026-07-18.
In the last 24 hrs, the best air quality in Penzance, Cornwall was observed at 05:00:00 on 2026-07-17.
The current air quality in Penzance, Cornwall is 60, categorized as Moderate based on real-time data.
The most common pollutant in Penzance, Cornwall is PM2.5.
If the air quality in Penzance, Cornwall is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Penzance, Cornwall is 14.26 μg/m3.
The current PM10 concentration at Penzance, Cornwall is 21.723 μg/m3.
The current carbon monoxide (CO) concentration at Penzance, Cornwall is 0.122 ppm.
The current sulfur dioxide (SO2) concentration at Penzance, Cornwall is 0.085 ppb.
The current ozone (O3) concentration at Penzance, Cornwall is 41.63 ppm.
The current nitrogen dioxide (NO2) concentration at Penzance, Cornwall is 0.699 ppb.
All Rights Reserved © Ambee Inc. 2025