What is the air quality trend in Grays?

Over the past 8 days, Grays had an average AQI of 55 based on station measurements. The worst day was 2026-05-25 with AQI 69.

How is Grays air quality measured?

Air quality in Grays 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 Grays, United Kingdom

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 29 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	29–63	10.1 µg/m³	21.4	17h	35
2026-05-28	49	32–118	12.4 µg/m³	24.5	24h	35
2026-05-27	60	41–120	16.8 µg/m³	27.5	24h	39
2026-05-26	58	28–108	16.0 µg/m³	23.7	24h	40
2026-05-25	69	45–131	20.7 µg/m³	28.4	24h	46
2026-05-24	64	33–158	19.1 µg/m³	24.0	24h	36
2026-05-23	51	34–78	13.0 µg/m³	18.1	24h	38
2026-05-22	51	37–77	13.4 µg/m³	14.1	6h	40

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