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)
37
Good
St Austell, Cornwall
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.49 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.54 μg/m³
0
55
155
255
425
605+
40.40 ppb
0
55
71
86
201
201+
0.11 ppb
0
36
76
186
605
1005+
0.88 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Very high
St Austell, Cornwall
St Austell, Cornwall
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AQI 35
Good
5.28μg/m³
PM2.5
13.45μg/m³
PM10
38.30ppb
O3
0.17ppb
SO2
1.78ppb
NO2
0.12ppm
CO
AQI 39
Good
5.78μg/m³
PM2.5
13.97μg/m³
PM10
42.04ppb
O3
0.09ppb
SO2
0.77ppb
NO2
0.12ppm
CO
AQI 40
Good
5.58μg/m³
PM2.5
14.93μg/m³
PM10
43.07ppb
O3
0.06ppb
SO2
0.50ppb
NO2
0.12ppm
CO
AQI 26
Good
3.04μg/m³
PM2.5
10.61μg/m³
PM10
28.47ppb
O3
0.54ppb
SO2
7.06ppb
NO2
0.13ppm
CO
AQI 40
Good
5.74μg/m³
PM2.5
14.84μg/m³
PM10
42.94ppb
O3
0.09ppb
SO2
0.87ppb
NO2
0.12ppm
CO
AQI 40
Good
5.64μg/m³
PM2.5
14.56μg/m³
PM10
42.95ppb
O3
0.09ppb
SO2
0.76ppb
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 11:00:00, 2026-02-10.
The best air quality in St Austell, Cornwall was observed at 03:00:00 on 2026-02-10.
The air quality in St Austell, Cornwall right now is Good, with an AQI of 37.
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 5.487 μg/m3.
St Austell, Cornwall currently has a PM10 concentration of 14.54 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 0.114 ppb.
St Austell, Cornwall currently has an ozone (O3) concentration of 40.395 ppm.
The current level of nitrogen dioxide (NO2) in St Austell, Cornwall is 0.875 ppb.
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