Air quality in Châtelet, Hainaut, Belgium today
Mr. Duck’s Air Quality Score
Good air today for Châtelet, Hainaut, Belgium
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Châtelet today is classified as Good. The main pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 0.0 and a PM10 reference value of 1.271, based on two valid observations.
Data are shown via OpenAQ. 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 record for Châtelet currently draws on three recent observations collected at a single OpenAQ station (45R510 – CHATELINEAU). All three measured pollutants—particulate matter 10 µm (PM10), particulate matter 2.5 µm (PM2.5) and sulfur dioxide (SO₂)—are represented, but the dataset is limited to one monitoring location.
The freshest data are for PM10 and PM2.5, both recorded on 2026‑02‑10 at 18:00 UTC, which meets the “updated within three days” criterion. In contrast, the SO₂ reading dates back to 2025‑12‑29 at 12:00 UTC and is flagged as old. Across the three rows, PM10 shows a single value of 1.271 µg/m³ (minimum, median and maximum are identical), while PM2.5 registers only zeros (0.0 µg/m³). SO₂ also presents a uniform figure of 1.0 µg/m³ for its sole entry.
Because the dataset consists of just one station, the spatial coverage is narrow; conditions elsewhere in Châtelet may differ from those captured at this point. The timing of the observations is uneven: two pollutants have very recent measurements, but SO₂ relies on a reading that is more than a month older. Moreover, the lack of variation—identical min, median and max values for each pollutant—means the data provide only a snapshot rather than a picture of fluctuation over time. Users should keep in mind that with such limited rows and mixed freshness, the available figures give a constrained view of the city’s air quality at any given moment.
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 Châtelet reflects two valid measurements and is updated within 3 days, with the latest values recorded on 2026‑02‑10 at 18:00 UTC. This snapshot provides a brief overview of current conditions, but air quality can differ across neighbourhoods and change throughout the day, so local variations may not be captured in these figures.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 45R510 - CHATELINEAU | pm10 | 1.271 | µg/m³ | 2026-02-10 18:00 UTC |
| 45R510 - CHATELINEAU | pm25 | 0.0 | µg/m³ | 2026-02-10 18:00 UTC |
| 45R510 - CHATELINEAU | so2 | 1.0 | µg/m³ | 2025-12-29 12:00 UTC |