What is the air quality trend in Greenwich?

Over the past 8 days, Greenwich had an average AQI of 62 based on station measurements. The worst day was 2026-05-25 with AQI 80.

How is Greenwich air quality measured?

Air quality in Greenwich 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 Greenwich, United Kingdom

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

Historical PM2.5 and AQI trend from monitoring stations near Greenwich, 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 · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-30	34	3–44	8.2 µg/m³	7.4	9h	41
2026-05-29	53	35–106	14.0 µg/m³	15.8	24h	44
2026-05-28	54	42–75	14.0 µg/m³	21.1	24h	41
2026-05-27	69	48–128	20.5 µg/m³	24.9	24h	47
2026-05-26	63	49–94	17.7 µg/m³	21.1	24h	50
2026-05-25	80	52–142	25.5 µg/m³	26.7	24h	54
2026-05-24	75	39–144	23.3 µg/m³	20.4	24h	44
2026-05-23	70	45–148	21.2 µg/m³	16.4	16h	50

Back to Greenwich Air Quality