What is the air quality trend in Brentwood?

Over the past 8 days, Brentwood had an average AQI of 56 based on station measurements. The worst day was 2026-05-25 with AQI 71.

How is Brentwood air quality measured?

Air quality in Brentwood 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 Brentwood, United Kingdom

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

Historical PM2.5 and AQI trend from monitoring stations near Brentwood, 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 · 25 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	44	28–63	11.0 µg/m³	20.5	19h	38
2026-05-28	51	32–117	13.1 µg/m³	24.5	24h	36
2026-05-27	61	38–126	17.1 µg/m³	27.5	24h	41
2026-05-26	61	36–100	17.0 µg/m³	23.7	24h	43
2026-05-25	71	45–142	21.6 µg/m³	28.4	24h	50
2026-05-24	56	30–94	15.3 µg/m³	24.0	24h	37
2026-05-23	52	41–76	13.0 µg/m³	18.1	24h	40
2026-05-22	53	40–65	13.8 µg/m³	13.9	4h	44

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