What is the air quality trend in Amersfoort?

Over the past 14 days, Amersfoort had an average AQI of 27 based on station measurements. The worst day was 2026-05-23 with AQI 50.

How is Amersfoort air quality measured?

Air quality in Amersfoort 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 Amersfoort, Netherlands

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

Historical PM2.5 and AQI trend from monitoring stations near Amersfoort, Netherlands.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

246h

PM2.5 Station

246h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-29	47	5–84	13.6 µg/m³	14.0	12h	1
2026-05-27	25	4–51	6.1 µg/m³	6.3	7h	1
2026-05-26	27	3–87	7.9 µg/m³	8.2	14h	1
2026-05-25	8	4–16	1.9 µg/m³	2.3	14h	1
2026-05-24	38	4–107	11.4 µg/m³	12.9	19h	2
2026-05-23	50	8–112	15.6 µg/m³	17.3	24h	2
2026-05-22	34	9–73	8.7 µg/m³	9.1	23h	2
2026-05-21	19	1–45	4.5 µg/m³	5.3	24h	2
2026-05-20	15	1–41	3.7 µg/m³	4.8	24h	2
2026-05-19	17	1–38	4.2 µg/m³	4.8	24h	2
2026-05-18	35	5–76	9.0 µg/m³	9.9	24h	2
2026-05-17	40	10–65	9.9 µg/m³	11.3	23h	2
2026-05-16	20	4–53	4.9 µg/m³	5.5	13h	2
2026-05-15	3	3–3	0.6 µg/m³	1.2	1h	1

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