Air quality in Noordwijk, South Holland, Netherlands today
Mr. Duck’s Air Quality Score
Moderate air today for Noordwijk, South 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 Noordwijk today is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 9.3468 and a PM10 reference value of 4.43, based on six valid observations collected via OpenAQ.
These figures reflect the current assessment for the city without additional interpretation. 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 air‑quality dataset for Noordwijk currently contains a single monitoring location – De Zilk‑Vogelaarsdreef – which provides one row of data for each of the six measured pollutants: nitrogen monoxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤10 µm (PM₁₀), particulate matter ≤2.5 µm (PM₂.₅) and sulphur dioxide (SO₂). All values were last updated on 2026‑02‑10 at 21:00 UTC, so the freshest reading for every pollutant is just a few days old.
The recorded concentrations are all identical across the dataset because only one measurement exists per pollutant. NO registers at 0.34 µg/m³, NO₂ at 22.85 µg/m³, O₃ at 16.88 µg/m³, PM₁₀ at 4.43 µg/m³, PM₂.5 at 9.3468 µg/m³ and SO₂ at 0.15 µg/m³. Because there is no variation within each pollutant’s column, the minimum, median, maximum, 10th percentile and 90th percentile values are all the same as the single reported figure.
With only one sensor contributing data, coverage across the city is very limited; any spatial differences in air quality cannot be captured by this dataset. The timestamps indicate that every pollutant’s latest measurement falls within the “updated within 7 days” freshness bucket, but there are no older or unknown‑age entries to compare against. Consequently, while the numbers give a snapshot of current conditions at De Zilk‑Vogelaarsdreef, they do not reflect possible fluctuations elsewhere in Noordwijk or over longer periods.
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 data shown reflects six valid measurements and is updated within 3 days, with the most recent reading recorded on 2026‑02‑10 at 21:00 UTC. While this snapshot provides a current view of air quality in Noordwijk, conditions can differ across neighborhoods and change throughout the day, so local variations may not be captured by these figures.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| De Zilk-Vogelaarsdreef | no | 0.34 | µg/m³ | 2026-02-10 21:00 UTC |
| De Zilk-Vogelaarsdreef | no2 | 22.85 | µg/m³ | 2026-02-10 21:00 UTC |
| De Zilk-Vogelaarsdreef | o3 | 16.88 | µg/m³ | 2026-02-10 21:00 UTC |
| De Zilk-Vogelaarsdreef | pm10 | 4.43 | µg/m³ | 2026-02-10 21:00 UTC |
| De Zilk-Vogelaarsdreef | pm25 | 9.3468 | µg/m³ | 2026-02-10 21:00 UTC |
| De Zilk-Vogelaarsdreef | so2 | 0.15 | µg/m³ | 2026-02-10 21:00 UTC |