What is the air quality trend in Norwich?

Over the past 3 days, Norwich had an average AQI of 46 based on station measurements. The worst day was 2026-07-21 with AQI 51.

How is Norwich air quality measured?

Air quality in Norwich 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 Norwich, United Kingdom

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

36h

PM2.5 Station

36h · 1 station

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	44	14–74	12.0 µg/m³	4h	2
2026-07-21	51	13–188	17.9 µg/m³	20h	2
2026-07-20	44	21–78	11.7 µg/m³	12h	2

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