Air quality in Boulogne-sur-Mer, Hauts-de-France, France today
Mr. Duck’s Air Quality Score
Good air today for Boulogne-sur-Mer, Hauts-de-France, France
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Boulogne-sur-Mer today is classified as Good. The primary pollutant measured is PM2.5 (fine particles). Data from three valid measurements show a PM2.5 reference value of 8.9 µg/m³ and a concurrent PM10 reference value of 14.7 µg/m³, as displayed via OpenAQ.
Overall conditions meet the Good category criteria based on these observations. 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 Boulogne‑sur‑Mer currently includes three measured pollutants – nitrogen dioxide (NO₂), particulate matter 10 µm or less (PM₁₀) and fine particulate matter 2.5 µm or less (PM₂.₅). All of the data come from a single monitoring location, identified as Boulogne Diderot, so there is one station contributing to the city‑wide dataset.
Each pollutant has exactly one recent observation, all captured at the same moment: NO₂ registers 14.3 µg/m³, PM₁₀ records 14.7 µg/m³ and PM₂.5 shows 8.9 µg/m³. For every compound the minimum, median and maximum values are identical, indicating that only a single reading is available rather than a range of measurements over time. The timestamp for each entry is 2026‑02‑10 15:00 UTC, which falls within the “updated within three days” freshness category used by the source platform.
Because the dataset consists of just three rows – one per pollutant – coverage across Boulogne‑sur‑Mer is limited to this lone site. The data are very fresh, but the lack of multiple stations or repeated observations means that spatial and temporal variations in air quality cannot be captured here. Users should keep in mind that conditions may differ elsewhere in the city or at other times, even though the current figures provide a snapshot from the Boulogne Diderot monitor on the specified date and time.
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 current dataset for Boulogne-sur-Mer includes three valid measurements and is refreshed regularly, having been updated within the past three days (last update: 2026‑02‑10 15:00 UTC). These values represent a snapshot of ambient conditions at specific monitoring points; air quality can differ across neighborhoods and change throughout the day, so local conditions may vary from what is shown here.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Boulogne Diderot | no2 | 14.3 | µg/m³ | 2026-02-10 15:00 UTC |
| Boulogne Diderot | pm10 | 14.7 | µg/m³ | 2026-02-10 15:00 UTC |
| Boulogne Diderot | pm25 | 8.9 | µg/m³ | 2026-02-10 15:00 UTC |