SmogRank / Countries / The Netherlands / South Holland
Most polluted cities in South Holland, The Netherlands
8 measured cities ranked by PM2.5, last 7 days. Worst: Ridderkerk at 9.8 µg/m³, #557 in the world.
| # | City | µg/m³ | |
|---|---|---|---|
| 1 | Ridderkerk South Holland | 9.8 | |
| 2 | Spijkenisse South Holland | 9.7 | |
| 3 | Rotterdam South Holland | 9.6 | |
| 4 | 's-Gravenzande South Holland | 9.4 | |
| 5 | The Hague South Holland | 9.4 | |
| 6 | Schiedam South Holland | 9.0 | |
| 7 | Maassluis South Holland | 8.8 | |
| 8 | Hillegom South Holland | 7.8 |
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
South Holland 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 |
|---|---|
| Leiden estimated | ≈ 9 µg/m³ |
| Dordrecht estimated | ≈ 10 µg/m³ |
| Zoetermeer estimated | ≈ 10 µg/m³ |
| Delft estimated | ≈ 10 µg/m³ |
| Vlaardingen estimated | ≈ 10 µg/m³ |
| Gouda estimated | ≈ 10 µg/m³ |
| Alphen aan den Rijn estimated | ≈ 10 µg/m³ |
| Capelle aan den IJssel estimated | ≈ 10 µg/m³ |
| Rijswijk estimated | ≈ 10 µg/m³ |
| Zwijndrecht estimated | ≈ 10 µg/m³ |
| Barendrecht estimated | ≈ 10 µg/m³ |
| Voorburg estimated | ≈ 10 µg/m³ |
| Hoogvliet estimated | ≈ 10 µg/m³ |
| Gorinchem estimated | ≈ 10 µg/m³ |
| Papendrecht estimated | ≈ 10 µg/m³ |
| Ypenburg estimated | ≈ 10 µg/m³ |
| Krimpen aan den IJssel estimated | ≈ 10 µg/m³ |
| Leiderdorp estimated | ≈ 10 µg/m³ |
| Wassenaar estimated | ≈ 10 µg/m³ |
| Waddinxveen estimated | ≈ 10 µg/m³ |
| Noordwijk-Binnen estimated | ≈ 9 µg/m³ |
| Sliedrecht estimated | ≈ 10 µg/m³ |
| Oud-Beijerland estimated | ≈ 10 µg/m³ |
| Scheveningen estimated | ≈ 10 µg/m³ |
| Voorschoten estimated | ≈ 10 µg/m³ |
| Lisse estimated | ≈ 9 µg/m³ |
| Hellevoetsluis estimated | ≈ 9 µg/m³ |
| Oegstgeest estimated | ≈ 9 µg/m³ |
| Hendrik-Ido-Ambacht estimated | ≈ 10 µg/m³ |
| Berkel en Rodenrijs estimated | ≈ 10 µg/m³ |
| Katwijk aan Zee estimated | ≈ 9 µg/m³ |
| Bodegraven estimated | ≈ 10 µg/m³ |
| Nootdorp estimated | ≈ 10 µg/m³ |
| Benthuizen estimated | ≈ 9 µg/m³ |
| Pijnacker estimated | ≈ 10 µg/m³ |
| Alblasserdam estimated | ≈ 10 µg/m³ |
| Rhoon estimated | ≈ 10 µg/m³ |
| Naaldwijk estimated | ≈ 10 µg/m³ |
| Middelharnis estimated | ≈ 8 µg/m³ |
| Bergschenhoek estimated | ≈ 10 µg/m³ |
Updated 2026-10-01 11:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.