Air quality in Chalon-sur-Saône, Bourgogne – Franche-Comté, France today
Mr. Duck’s Air Quality Score
Good air today for Chalon-sur-Saône, Bourgogne – Franche-Comté, 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 Chalon‑sur‑Saône is currently classified as Good. The main pollutant identified is PM2.5, with a measured concentration of 3.8 µg/m³ based on two valid observations reported through OpenAQ.
These values indicate that the fine particle levels are within the range associated with the Good category. 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 Chalon‑sur‑Saône includes five measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), ozone (O₃), fine particulate matter (PM₂.5) and coarse particulate matter (PM₁₀). The dataset contains nine individual rows drawn from three monitoring stations, so the spatial coverage is limited to a handful of points within the city centre and two additional reference sites.
The most recent data are for NO₂ (2026‑02‑10 15:00 UTC), PM₂.5 (2026‑02‑09 03:00 UTC) and NO (2024‑03‑11 09:00 UTC). Ozone and PM₁₀ are only represented by much older entries from 2018‑07‑18 and 2024‑01‑08 respectively, indicating that the overall freshness of the record is uneven across pollutants. For the three newer series, median concentrations sit at 12.4 µg/m³ for NO₂, 5.35 µg/m³ for PM₂.5 and 28.0 µg/m³ for NO, with observed ranges spanning from low single‑digit values up to 69.8 µg/m³ for NO₂ and 43.2 µg/m³ for NO. The particulate data are tightly clustered: PM₂.5 varies between 3.8 and 6.9 µg/m³, while the lone PM₁₀ reading is a negative outlier at –0.2 µg/m³, suggesting a possible sensor or reporting issue.
Because most rows are recent for only two pollutants, the picture of air quality in Chalon‑sur‑Saône is incomplete and may not capture variations across different neighbourhoods or times of day. Users should keep in mind that conditions can differ by location and moment, and that the dataset’s limited station count and mixed data ages constrain how fully it reflects the city’s current atmosphere.
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 for Chalon‑sur‑Saône are based on two valid measurements and were refreshed recently, Updated within 3 days; the latest values were recorded at 2026‑02‑10T15:00:00+00:00. This snapshot reflects conditions at that specific time and location, but air quality can change across different parts of the city and throughout the day, so current levels may differ from those shown here.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| FR32001 | no | 43.2 | µg/m³ | 2024-01-29 17:00 UTC |
| FR32001 | no2 | 69.8 | µg/m³ | 2024-01-29 17:00 UTC |
| FR32001 | pm25 | 6.9 | µg/m³ | 2024-01-29 16:00 UTC |
| FR32014 | no2 | 5.38 | µg/m³ | 2018-07-18 12:00 UTC |
| FR32014 | o3 | 117.18 | µg/m³ | 2018-07-18 12:00 UTC |
| Chalon Centre Ville | no | 12.8 | µg/m³ | 2024-03-11 09:00 UTC |
| Chalon Centre Ville | no2 | 12.4 | µg/m³ | 2026-02-10 15:00 UTC |
| Chalon Centre Ville | pm25 | 3.8 | µg/m³ | 2026-02-09 03:00 UTC |