Stay updated with real-time air quality in St Austell, 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)
30
Good
St Austell, Cornwall
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.84 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.52 μg/m³
0
55
155
255
425
605+
31.84 ppb
0
55
71
86
201
201+
0.10 ppb
0
36
76
186
605
1005+
1.10 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
St Austell, Cornwall
St Austell, Cornwall
Scroll To Air Quality MapLoading...
AQI 27
Good
4.78μg/m³
PM2.5
9.78μg/m³
PM10
24.11ppb
O3
0.14ppb
SO2
3.44ppb
NO2
0.15ppm
CO
AQI 22
Good
3.96μg/m³
PM2.5
7.76μg/m³
PM10
23.80ppb
O3
0.20ppb
SO2
4.21ppb
NO2
0.11ppm
CO
AQI 22
Good
4.29μg/m³
PM2.5
7.89μg/m³
PM10
23.23ppb
O3
0.16ppb
SO2
3.82ppb
NO2
0.11ppm
CO
AQI 44
Good
7.55μg/m³
PM2.5
20.29μg/m³
PM10
19.34ppb
O3
0.43ppb
SO2
3.45ppb
NO2
0.34ppm
CO
AQI 23
Good
3.89μg/m³
PM2.5
7.58μg/m³
PM10
25.36ppb
O3
0.21ppb
SO2
4.11ppb
NO2
0.12ppm
CO
AQI 23
Good
4.07μg/m³
PM2.5
7.61μg/m³
PM10
24.94ppb
O3
0.20ppb
SO2
4.02ppb
NO2
0.11ppm
CO
The air quality data for Cornwall, UK is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for St Austell, Cornwall are available every hour.
St Austell, Cornwall experienced its worst air quality at 01:00:00, 2025-11-07.
The best air quality in St Austell, Cornwall was observed at 03:00:00 on 2025-11-07.
The air quality in St Austell, Cornwall right now is Good, with an AQI of 24.
In St Austell, Cornwall, O3 is the most frequently found pollutant.
When air quality in St Austell, Cornwall is compromised, staying indoors and wearing a mask can reduce health risks.
St Austell, Cornwall currently has a PM2.5 concentration of 4.029 μg/m3.
St Austell, Cornwall currently has a PM10 concentration of 7.336 μg/m3.
The current carbon monoxide (CO) level in St Austell, Cornwall is 0.119 ppm.
The current sulfur dioxide (SO2) concentration in St Austell, Cornwall is 0.083 ppb.
St Austell, Cornwall currently has an ozone (O3) concentration of 26.082 ppm.
The current level of nitrogen dioxide (NO2) in St Austell, Cornwall is 3.632 ppb.
All Rights Reserved © Ambee Inc. 2025