What is the air quality trend in Hornchurch?

Over the past 15 days, Hornchurch had an average AQI of 57 based on station measurements. The worst day was 2026-05-25 with AQI 70.

How is Hornchurch air quality measured?

Air quality in Hornchurch 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 Hornchurch, United Kingdom

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

335h

PM2.5 Station

335h · 27 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-29	44	28–61	10.9 µg/m³	20.5	19h	39
2026-05-28	50	32–110	12.9 µg/m³	24.5	24h	37
2026-05-27	61	38–124	17.1 µg/m³	27.5	24h	42
2026-05-26	62	36–106	17.8 µg/m³	23.7	24h	45
2026-05-25	70	45–137	21.1 µg/m³	28.4	24h	52
2026-05-24	56	30–94	15.1 µg/m³	24.0	24h	38
2026-05-23	52	41–73	13.0 µg/m³	18.1	24h	42
2026-05-22	53	28–73	14.1 µg/m³	13.3	24h	46
2026-05-21	64	32–128	19.0 µg/m³	4.6	24h	40
2026-05-20	67	28–157	20.2 µg/m³	8.8	24h	41
2026-05-19	63	26–110	18.4 µg/m³	10.6	24h	51
2026-05-18	53	25–96	14.6 µg/m³	7.6	24h	48
2026-05-17	66	30–104	20.0 µg/m³	6.8	24h	61
2026-05-16	55	20–93	15.5 µg/m³	9.0	24h	57
2026-05-15	46	44–48	11.1 µg/m³	10.5	4h	60

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