What is the air quality trend in Amersham on the Hill?

Over the past 15 days, Amersham on the Hill had an average AQI of 27 based on station measurements. The worst day was 2026-07-17 with AQI 51.

How is Amersham on the Hill air quality measured?

Air quality in Amersham on the Hill 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 Amersham on the Hill, United Kingdom

Name: Amersham on the Hill Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Amersham on the Hill, United Kingdom.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

314h

PM2.5 Station

314h · 1 station

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	29	8–92	8.1 µg/m³	10.3	8h	1
2026-07-21	10	2–32	2.4 µg/m³	3.0	24h	1
2026-07-20	6	2–13	1.4 µg/m³	1.6	23h	1
2026-07-19	5	1–9	1.2 µg/m³	1.3	23h	1
2026-07-18	36	5–87	9.7 µg/m³	10.6	24h	1
2026-07-17	51	19–73	13.6 µg/m³	16.3	24h	1
2026-07-16	37	14–69	9.4 µg/m³	10.5	24h	1
2026-07-15	40	22–63	9.8 µg/m³	11.0	24h	1
2026-07-14	38	5–64	9.5 µg/m³	10.8	24h	1
2026-07-13	18	5–36	4.2 µg/m³	5.0	22h	1
2026-07-12	12	1–27	2.9 µg/m³	3.0	21h	1
2026-07-11	20	5–59	4.9 µg/m³	5.7	24h	1
2026-07-10	31	4–62	7.6 µg/m³	9.0	24h	1
2026-07-09	45	8–78	11.8 µg/m³	12.6	15h	1
2026-07-08	40	29–58	9.7 µg/m³	10.9	10h	1

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