What is the air quality trend in Horsforth?

Over the past 21 days, Horsforth had an average AQI of 45 based on station measurements. The worst day was 2026-08-26 with AQI 65.

How is Horsforth air quality measured?

Air quality in Horsforth 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 Horsforth, United Kingdom

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

475h

PM2.5 Station

475h · 4 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	38	15–56	9.2 µg/m³	15h	4
2026-09-04	39	13–66	9.8 µg/m³	24h	4
2026-09-03	37	23–63	8.9 µg/m³	24h	4
2026-09-02	32	12–68	7.8 µg/m³	24h	4
2026-09-01	40	17–62	9.8 µg/m³	24h	4
2026-08-31	36	23–57	8.7 µg/m³	24h	5
2026-08-30	40	15–80	10.2 µg/m³	24h	5
2026-08-29	50	22–120	13.9 µg/m³	24h	4
2026-08-28	53	15–95	14.6 µg/m³	24h	5
2026-08-27	54	35–87	14.3 µg/m³	24h	5
2026-08-26	65	18–158	19.6 µg/m³	24h	5
2026-08-25	47	23–71	12.0 µg/m³	24h	5
2026-08-24	47	22–73	11.8 µg/m³	24h	4
2026-08-23	53	29–152	14.4 µg/m³	24h	5
2026-08-22	44	14–87	11.4 µg/m³	24h	4
2026-08-21	46	21–96	12.2 µg/m³	24h	4
2026-08-20	52	22–134	13.9 µg/m³	24h	5
2026-08-19	54	24–110	14.7 µg/m³	24h	5
2026-08-18	47	30–83	12.5 µg/m³	23h	5
2026-08-17	38	10–74	9.7 µg/m³	24h	5
2026-08-16	39	32–45	9.3 µg/m³	5h	4

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