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 72.

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

169h

PM2.5 Station

169h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-29	42	10–63	10.4 µg/m³	15.7	24h	35
2026-05-28	56	37–159	15.6 µg/m³	21.9	24h	36
2026-05-27	61	45–82	17.0 µg/m³	23.7	24h	41
2026-05-26	66	39–107	19.4 µg/m³	20.5	24h	45
2026-05-25	72	49–116	22.0 µg/m³	27.6	24h	48
2026-05-24	60	27–93	16.8 µg/m³	20.8	24h	38
2026-05-23	57	39–108	15.3 µg/m³	15.5	24h	40
2026-05-22	14	14–14	3.3 µg/m³	3.3	1h	1

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