What is the air quality trend in Walton-on-Thames?

Over the past 15 days, Walton-on-Thames had an average AQI of 47 based on station measurements. The worst day was 2026-07-11 with AQI 56.

How is Walton-on-Thames air quality measured?

Air quality in Walton-on-Thames 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 Walton-on-Thames, United Kingdom

Name: Walton-on-Thames Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Walton-on-Thames, United Kingdom.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

336h

PM2.5 Station

336h · 8 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-22	43	32–54	10.4 µg/m³	11.1	8h	22
2026-07-21	39	25–56	9.5 µg/m³	9.1	24h	32
2026-07-20	36	27–55	8.8 µg/m³	9.7	24h	31
2026-07-19	42	27–119	10.9 µg/m³	9.3	24h	30
2026-07-18	53	36–81	13.7 µg/m³	19.0	24h	28
2026-07-17	56	43–85	14.8 µg/m³	20.9	24h	28
2026-07-16	53	39–87	13.6 µg/m³	17.8	24h	26
2026-07-15	49	37–69	12.3 µg/m³	16.4	24h	25
2026-07-14	47	34–66	11.7 µg/m³	14.4	24h	26
2026-07-13	42	29–79	10.6 µg/m³	12.1	24h	25
2026-07-12	49	28–114	13.1 µg/m³	10.3	24h	25
2026-07-11	56	34–104	16.1 µg/m³	13.2	24h	23
2026-07-10	47	33–68	11.7 µg/m³	16.4	24h	24
2026-07-09	53	34–93	13.5 µg/m³	20.9	24h	25
2026-07-08	49	27–65	12.3 µg/m³	18.2	16h	26

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