Most polluted cities in The Netherlands

32 measured cities ranked by PM2.5, last 7 days. Worst: Haarlem at 11.8 µg/m³, #376 in the world.

#	City	µg/m³
1	Haarlem low-cost sensorsNorth Holland	11.8
2	Venray Limburg	11.1
3	Breda North Brabant	10.6
4	Tilburg North Brabant	10.3
5	Medemblik North Holland	10.2
6	Nijmegen Gelderland	10.1
7	Barneveld Gelderland	10.1
8	Amsterdam North Holland	10.1
9	Utrecht Utrecht	10.0
10	IJsselstein Utrecht	10.0
11	Eibergen Gelderland	10.0
12	Ridderkerk South Holland	9.8
13	Velserbroek North Holland	9.8
14	Spijkenisse South Holland	9.7
15	Maarssen Utrecht	9.7
16	Rotterdam South Holland	9.6
17	Eindhoven North Brabant	9.6
18	's-Gravenzande South Holland	9.4
19	The Hague South Holland	9.4
20	Zaanstad North Holland	9.3
21	Schiedam South Holland	9.0
22	Enschede Overijssel	9.0
23	Nijverdal Overijssel	8.8
24	Maassluis South Holland	8.8
25	Heerlen Limburg	8.7
26	Groningen Groningen	8.7
27	Emmen Drenthe	8.3
28	Badhoevedorp North Holland	8.0
29	Hillegom South Holland	7.8
30	Velsen-Zuid North Holland	7.7
31	Hoensbroek Limburg	7.5
32	Purmerend North Holland	7.1

Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

Estimated: cities without a monitor

The Netherlands cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City	7-day estimate	Band
Almere Stad estimated	≈ 10 µg/m³	Moderate
Arnhem estimated	≈ 10 µg/m³	Moderate
's-Hertogenbosch estimated	≈ 9 µg/m³	Moderate
Amersfoort estimated	≈ 10 µg/m³	Moderate
Apeldoorn estimated	≈ 9 µg/m³	Moderate
Hoofddorp estimated	≈ 10 µg/m³	Moderate
Zwolle estimated	≈ 9 µg/m³	Moderate
Leeuwarden estimated	≈ 9 µg/m³	Good
Maastricht estimated	≈ 8 µg/m³	Good
Leiden estimated	≈ 9 µg/m³	Moderate
Dordrecht estimated	≈ 10 µg/m³	Moderate
Zoetermeer estimated	≈ 10 µg/m³	Moderate
Deventer estimated	≈ 9 µg/m³	Moderate
Delft estimated	≈ 10 µg/m³	Moderate
Alkmaar estimated	≈ 9 µg/m³	Good
Hilversum estimated	≈ 10 µg/m³	Moderate
Hengelo estimated	≈ 9 µg/m³	Moderate
Lelystad estimated	≈ 9 µg/m³	Good
Amstelveen estimated	≈ 10 µg/m³	Moderate
Roosendaal estimated	≈ 9 µg/m³	Moderate
Oss estimated	≈ 9 µg/m³	Moderate
Helmond estimated	≈ 10 µg/m³	Moderate
Vlaardingen estimated	≈ 10 µg/m³	Moderate
Almelo estimated	≈ 9 µg/m³	Moderate
Gouda estimated	≈ 10 µg/m³	Moderate
Zaandam estimated	≈ 10 µg/m³	Moderate
Alphen aan den Rijn estimated	≈ 10 µg/m³	Moderate
Hoorn estimated	≈ 9 µg/m³	Good
Assen estimated	≈ 9 µg/m³	Good
Ede estimated	≈ 10 µg/m³	Moderate
Bergen op Zoom estimated	≈ 9 µg/m³	Good
Capelle aan den IJssel estimated	≈ 10 µg/m³	Moderate
Nieuwegein estimated	≈ 10 µg/m³	Moderate
Veenendaal estimated	≈ 10 µg/m³	Moderate
Zeist estimated	≈ 10 µg/m³	Moderate
Den Helder estimated	≈ 9 µg/m³	Good
Hardenberg estimated	≈ 9 µg/m³	Moderate
Oosterhout estimated	≈ 9 µg/m³	Good
Doetinchem estimated	≈ 10 µg/m³	Moderate
Kerkrade estimated	≈ 9 µg/m³	Good

Regions

Gelderland 2 Groningen 1 Limburg 3 North Brabant 3 North Holland 8 Overijssel 2 South Holland 8 Utrecht 3

Updated 2026-10-01 09:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.