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)
32
Good
St Austell, Cornwall
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.84 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.76 μg/m³
0
55
155
255
425
605+
35.04 ppb
0
55
71
86
201
201+
0.07 ppb
0
36
76
186
605
1005+
0.78 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
St Austell, Cornwall
St Austell, Cornwall
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AQI 34
Good
4.26μg/m³
PM2.5
10.81μg/m³
PM10
36.52ppb
O3
0.18ppb
SO2
2.29ppb
NO2
0.29ppm
CO
AQI 34
Good
3.13μg/m³
PM2.5
9.13μg/m³
PM10
36.55ppb
O3
0.08ppb
SO2
0.79ppb
NO2
0.12ppm
CO
AQI 34
Good
3.14μg/m³
PM2.5
10.56μg/m³
PM10
36.87ppb
O3
0.06ppb
SO2
0.42ppb
NO2
0.12ppm
CO
AQI 44
Good
7.89μg/m³
PM2.5
18.27μg/m³
PM10
25.45ppb
O3
0.62ppb
SO2
10.21ppb
NO2
1.01ppm
CO
AQI 33
Good
2.97μg/m³
PM2.5
9.36μg/m³
PM10
35.73ppb
O3
0.10ppb
SO2
0.81ppb
NO2
0.12ppm
CO
AQI 33
Good
2.97μg/m³
PM2.5
9.86μg/m³
PM10
35.78ppb
O3
0.07ppb
SO2
0.65ppb
NO2
0.12ppm
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 12:00:00, 2026-02-11.
The best air quality in St Austell, Cornwall was observed at 09:00:00 on 2026-02-11.
The air quality in St Austell, Cornwall right now is Good, with an AQI of 32.
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 2.839 μg/m3.
St Austell, Cornwall currently has a PM10 concentration of 8.763 μg/m3.
The current carbon monoxide (CO) level in St Austell, Cornwall is 0.144 ppm.
The current sulfur dioxide (SO2) concentration in St Austell, Cornwall is 0.065 ppb.
St Austell, Cornwall currently has an ozone (O3) concentration of 35.041 ppm.
The current level of nitrogen dioxide (NO2) in St Austell, Cornwall is 0.775 ppb.
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