What is the air quality trend in Coulsdon?

Over the past 8 days, Coulsdon had an average AQI of 53 based on station measurements. The worst day was 2026-05-25 with AQI 74.

How is Coulsdon air quality measured?

Air quality in Coulsdon 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 Coulsdon, United Kingdom

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

Historical PM2.5 and AQI trend from monitoring stations near Coulsdon, 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 · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-30	7	7–7	1.7 µg/m³	4.5	1h	1
2026-05-29	46	31–60	11.4 µg/m³	15.9	24h	41
2026-05-28	55	38–162	15.5 µg/m³	21.9	24h	40
2026-05-27	62	42–100	17.3 µg/m³	23.7	24h	43
2026-05-26	63	39–107	18.3 µg/m³	20.5	24h	47
2026-05-25	74	48–119	22.9 µg/m³	27.6	24h	51
2026-05-24	60	34–91	16.6 µg/m³	20.8	24h	42
2026-05-23	59	42–114	16.1 µg/m³	15.6	23h	44

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