Air quality in Besançon, Bourgogne – Franche-Comté, France today

Mr. Duck’s Air Quality Score

Moderate air today for Besançon, Bourgogne – Franche-Comté, France

⚠️ This website is currently under active development. Some data may be incomplete or temporarily inaccurate. For health-critical decisions, please verify information through official government or environmental sources.

Categories follow US EPA AQI breakpoints for PM (estimate from latest valid measurements; this project does not compute EPA NowCast/24-hour AQI yet).

This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.

Air quality today

The air quality in Besançon today is classified as Moderate. The primary pollutant identified is PM2.5, fine particulate matter measured at a reference value of 11.3 µg/m³, while PM10 shows a reference value of 10.3 µg/m³ based on five valid measurements.

Data are shown via OpenAQ and reflect the current monitoring results 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 dataset for Besançon includes five measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm or less (PM10) and particulate matter 2.5 µm or less (PM2.5). Across the city there are eight data rows originating from three monitoring stations, so each pollutant is not necessarily represented at every location.

The most recent values are fairly fresh for most gases: NO was last recorded on 2024-03-11 09:00 UTC, while both NO₂ and O₃ have updates as of 2026-02-10 15:00 UTC. The particulate measurements are a day older, with PM10 and PM2.5 reported on 2026-02-09 03:00 UTC. This means that for the majority of pollutants the data are at most a few days old, but NO’s timestamp is over two years old, indicating an uneven temporal coverage.

Looking at the numbers, NO shows a wide spread from 37.9 µg/m³ up to 68.4 µg/m³ with a median around 53.2 µg/m³, suggesting considerable variability across the recorded points. In contrast, NO₂ values are tightly clustered between 6.2 and 7.2 µg/m³, with a median of 6.7 µg/m³, reflecting little variation in the limited recent samples. O₃ ranges from 20.0 to 66.9 µg/m³ and has a median near 43.5 µg/m³, indicating moderate fluctuation. The particulate data are single‑point readings – both PM10 and PM2.5 are reported at exactly 10.3 µg/m³ and 11.3 µg/m³ respectively – so no spread can be assessed for those metrics.

Overall the dataset provides a snapshot of current air quality in Besançon, but the uneven freshness (especially the older NO record) and limited number of stations mean conditions can differ across neighborhoods and times not captured here.

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 dataset for Besançon includes five 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 the time of collection. Air quality can vary across different neighbourhoods and change throughout the day, so this information reflects only the specific moments measured rather than continuous citywide conditions.

OpenAQ station rows