Air quality in Grâce-Hollogne, Liège, Belgium today
Mr. Duck’s Air Quality Score
Good air today for Grâce-Hollogne, Liège, 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 Grâce‑Hollogne is classified as Good today. 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 0.1355, based on four 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 Grâce‑Hollogne currently draws on four rows of measurements collected at a single monitoring site (48R237 – BIERSET). All four key pollutants tracked by the OpenAQ network are represented: carbon monoxide (CO), nitrogen dioxide (NO₂), particulate matter up to 10 µm (PM₁₀) and fine particulate matter up to 2.5 µm (PM₂.₅). Each pollutant’s most recent reading was logged on 2026‑02‑10 at 18:00 UTC, and the dataset notes that these values were “Updated within 3 days,” indicating a relatively fresh snapshot for this location.
The numeric profile is remarkably uniform across the four rows. CO registers a single value of 165.0 µg/m³, with its minimum, median and maximum all identical at 165.0 µg/m³. NO₂ shows the same pattern at 10.0 µg/m³, while PM₁₀ is recorded at 0.1355 µg/m³ throughout. PM₂.₅ registers a value of zero across the board (0.0 µg/m³). Because each pollutant’s distribution consists of one repeated measurement, there is no observable spread or variability in the data for this period.
With only one monitoring station contributing four rows, coverage is limited to that specific point in the city, and the dataset does not include any older or unknown‑timestamp entries. Consequently, while the figures provide a clear, up‑to‑date picture of conditions at the BIERSET site, they may not capture spatial differences that can occur elsewhere in Grâce‑Hollogne or reflect longer‑term trends.
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 Grâce‑Hollogne is based on four valid measurements and was refreshed within the past three days, with the latest update recorded at 2026‑02‑10 18:00 UTC. This snapshot reflects conditions captured by those sensors at that time; air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment in the city.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 48R237 - BIERSET | co | 165.0 | µg/m³ | 2026-02-10 18:00 UTC |
| 48R237 - BIERSET | no2 | 10.0 | µg/m³ | 2026-02-10 18:00 UTC |
| 48R237 - BIERSET | pm10 | 0.1355 | µg/m³ | 2026-02-10 18:00 UTC |
| 48R237 - BIERSET | pm25 | 0.0 | µg/m³ | 2026-02-10 18:00 UTC |