Air quality in Hoofddorp, North Holland, Netherlands today
Mr. Duck’s Air Quality Score
Good air today for Hoofddorp, North Holland, Netherlands
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Hoofddorp today is classified as Good. The primary pollutant measured is PM10, with a reported reference concentration of 11.9 micrograms per cubic metre based on two valid observations.
Data are shown via OpenAQ and reflect the current monitoring results for this location. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.
Latest sensor values
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
What the data includes
The dataset for Hoofddorp contains four pollutant rows covering nitrogen monoxide (NO), nitrogen dioxide (NO2), ozone (O3) and particulate matter 10 µm or smaller (PM10). All four measurements come from a single monitoring location, identified as Hoofddorp‑Hoofdweg, so the station coverage for the city is limited to one site.
The most recent data points are from 2026‑02‑10 21:00 UTC, which apply to both NO2 and PM10. Those two pollutants each have a single recorded value – NO2 at 38.3 µg/m³ and PM10 at 11.9 µg/m³ – with identical minimum, median and maximum figures, indicating no observed variation in the limited sample. In contrast, the NO and O3 rows contain placeholder values of –999.0 µg/m³ and are flagged as “Old data,” with their last updates dating back to 2024‑03‑25 22:00 UTC for NO and 2021‑04‑20 21:00 UTC for O3. This means that, for half of the measured pollutants, the available information is outdated and does not reflect current conditions.
Overall, the freshness of the dataset is mixed: two pollutants are up‑to‑date within the last week, while the other two have not been refreshed for several years. Because all readings stem from a single location, they cannot capture spatial differences across Hoofddorp, and the lack of recent NO and O3 values further limits the picture of current air quality in the city.
Learn more about sources and filtering: About the data.
Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)
Latest sensor values (bars)
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
Data notes
The dataset for Hoofddorp contains two valid measurements and was updated within 3 days, with the latest reading recorded on 2026‑02‑10 at 21:00 UTC. While this information reflects recent conditions at specific monitoring points, air quality can differ across neighborhoods and change throughout the day, so local variations may not be captured in these figures.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Hoofddorp-Hoofdweg | no2 | 38.3 | µg/m³ | 2026-02-10 21:00 UTC |
| Hoofddorp-Hoofdweg | pm10 | 11.9 | µg/m³ | 2026-02-10 21:00 UTC |