Air quality in Velsen-Noord, North Holland, Netherlands today
Mr. Duck’s Air Quality Score
Moderate air today for Velsen-Noord, 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 today in Velsen‑Noord is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles).
Measurements from four valid observations show a PM2.5 reference value of 15.8 and a PM10 reference value of 23.8, as reported by OpenAQ. These figures reflect the current concentrations recorded for the city.
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 current station data listed for this city is focused on particulate matter (PM). In Velsen‑Noord the OpenAQ feed provides two pollutants, PM10 and PM2.5, each reported from four recent rows that originate from two monitoring sites. The most recent measurements were recorded on 2026-02-10 at 21:00 UTC, so the data are fresh within the last week for both fractions.
PM10 values in the latest set range from a low of 8.5 µg/m³ to a high of 23.8 µg/m³, with a median around 16.7 µg/m³ and the middle 80 % falling between roughly 10 and 22.6 µg/m³. PM2.5 shows a similar spread, from 4.8 up to 15.8 µg/m³, median 9.5 µg/m³, with the 10th‑90th percentile band spanning about 5.1 to 15.0 µg/m³. Because only two stations contribute data, spatial coverage is limited and conditions may differ across other parts of Velsen‑Noord. Nonetheless, the timestamps indicate that the available readings are up‑to‑date, offering a current snapshot of particulate concentrations for 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 data shown for Velsen-Noord is based on four valid measurements and was updated within 3 days, with the latest reading recorded at 2026‑02‑10 21:00 UTC. While this snapshot reflects current conditions at the monitoring site, 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 |
|---|---|---|---|---|
| Velsen-Staalstraat | pm10 | 13.6 | µg/m³ | 2025-09-04 12:00 UTC |
| Velsen-Staalstraat | pm25 | 5.9 | µg/m³ | 2025-09-04 13:00 UTC |
| Velsen-Reijndersweg | pm10 | 19.8 | µg/m³ | 2025-09-04 12:00 UTC |
| Velsen-Reijndersweg | pm25 | 4.8 | µg/m³ | 2025-09-04 13:00 UTC |
| Velsen-Reijndersweg | pm10 | 23.8 | µg/m³ | 2026-02-10 21:00 UTC |
| Velsen-Reijndersweg | pm25 | 15.8 | µg/m³ | 2026-02-10 21:00 UTC |
| Velsen-Staalstraat | pm10 | 8.5 | µg/m³ | 2026-02-10 21:00 UTC |
| Velsen-Staalstraat | pm25 | 13.1 | µg/m³ | 2026-02-10 21:00 UTC |