What is the air quality trend in Caterham?

Over the past 8 days, Caterham had an average AQI of 56 based on station measurements. The worst day was 2026-05-25 with AQI 67.

How is Caterham air quality measured?

Air quality in Caterham 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 Caterham, United Kingdom

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 3 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-29	41	6–61	10.1 µg/m³	17.2	19h	41
2026-05-28	52	34–102	13.7 µg/m³	21.9	24h	41
2026-05-27	61	41–127	17.1 µg/m³	23.7	24h	47
2026-05-26	58	30–96	15.7 µg/m³	20.5	24h	47
2026-05-25	67	42–123	19.8 µg/m³	27.6	24h	56
2026-05-24	61	34–113	17.1 µg/m³	20.8	24h	43
2026-05-23	53	36–73	13.8 µg/m³	15.5	24h	45
2026-05-22	58	45–80	15.9 µg/m³	12.3	5h	48

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