What is the air quality trend in Witham?

Over the past 8 days, Witham had an average AQI of 62 based on station measurements. The worst day was 2026-05-25 with AQI 76.

How is Witham air quality measured?

Air quality in Witham 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 Witham, United Kingdom

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 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	4–81	11.6 µg/m³	12.9	19h	15
2026-05-28	57	34–147	15.8 µg/m³	16.5	24h	15
2026-05-27	64	35–107	18.8 µg/m³	21.9	24h	17
2026-05-26	66	38–152	19.2 µg/m³	14.6	24h	17
2026-05-25	76	45–126	24.0 µg/m³	21.1	24h	21
2026-05-24	68	33–172	21.9 µg/m³	20.2	24h	16
2026-05-23	62	33–108	17.7 µg/m³	13.0	24h	16
2026-05-22	63	50–83	18.0 µg/m³	9.9	5h	17

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