What is the air quality trend in Chelsea?

Over the past 8 days, Chelsea had an average AQI of 64 based on station measurements. The worst day was 2026-05-22 with AQI 76.

How is Chelsea air quality measured?

Air quality in Chelsea 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 Chelsea, United Kingdom

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

Historical PM2.5 and AQI trend from monitoring stations near Chelsea, 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	45	1–63	11.4 µg/m³	14.7	23h	38
2026-05-28	58	40–157	16.3 µg/m³	21.1	24h	39
2026-05-27	63	45–84	18.0 µg/m³	24.9	24h	43
2026-05-26	72	41–135	21.9 µg/m³	21.1	24h	47
2026-05-25	71	46–101	21.5 µg/m³	26.7	24h	51
2026-05-24	69	32–153	20.7 µg/m³	20.4	24h	42
2026-05-23	65	45–123	18.8 µg/m³	15.3	24h	43
2026-05-22	76	58–94	24.1 µg/m³	9.1	2h	26

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