What is the air quality trend in Woerden?

Over the past 16 days, Woerden had an average AQI of 27 based on station measurements. The worst day was with AQI .

How is Woerden air quality measured?

Air quality in Woerden 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 Woerden, Netherlands

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

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

Current AQI
Good

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

307h · 6 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-10	19	6–24	4.6 µg/m³	11.7	21h	11
2026-04-09	57	12–78	16.1 µg/m³	26.8	17h	13
2026-04-08	21	17–29	5.1 µg/m³	9.6	9h	14
2026-04-07	18	3–36	4.2 µg/m³	8.2	24h	11
2026-04-06	14	2–28	3.5 µg/m³	8.2	18h	8
2026-04-04	21	7–30	5.1 µg/m³	9.5	15h	9
2026-04-03	37	21–65	9.1 µg/m³	16.0	24h	14
2026-04-02	41	1–92	11.9 µg/m³	16.8	22h	10
2026-04-01	42	23–58	10.1 µg/m³	17.6	22h	13
2026-03-31	27	12–44	6.5 µg/m³	14.4	23h	10
2026-03-30	25	12–44	6.1 µg/m³	14.0	12h	8
2026-03-29	18	7–27	4.4 µg/m³	10.0	23h	10
2026-03-28	28	6–64	6.9 µg/m³	12.4	23h	11
2026-03-27	35	20–66	8.6 µg/m³	13.4	24h	14
2026-03-26	17	13–23	4.1 µg/m³	10.5	24h	10
2026-03-25	12	7–21	2.8 µg/m³	9.9	6h	8

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