What is the air quality trend in St Austell?

Over the past 8 days, St Austell had an average AQI of 45 based on station measurements. The worst day was 2026-07-17 with AQI 55.

How is St Austell air quality measured?

Air quality in St Austell is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for St Austell, United Kingdom

Name: St Austell Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near St Austell, United Kingdom.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

126h

PM2.5 Station

126h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	41	23–59	10.1 µg/m³	6h	2
2026-07-21	52	13–129	14.5 µg/m³	21h	2
2026-07-20	32	4–53	7.6 µg/m³	15h	2
2026-07-19	38	16–76	9.6 µg/m³	20h	2
2026-07-18	42	10–152	11.3 µg/m³	19h	1
2026-07-17	55	17–166	17.0 µg/m³	18h	2
2026-07-16	48	19–138	13.2 µg/m³	15h	2
2026-07-15	53	13–65	14.0 µg/m³	12h	2

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