Air quality in Vannes, Brittany, France today
Mr. Duck’s Air Quality Score
Good air today for Vannes, Brittany, 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 Vannes today is classified as Good. The main pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 1.0 and a PM10 reference value of 1.7, 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 Vannes air‑quality dataset contains measurements for five 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). These data come from three monitoring stations that together contribute twelve individual rows of observations.
Freshness varies across the pollutants. The most recent readings for NO₂, O₃, PM₁₀ and PM₂.₅ were all recorded on 2026‑02‑10 at 15:00 UTC, while the latest NO value dates back to 2024‑03‑11 at 09:00 UTC, making it the oldest of the set. Overall, half of the rows (six) are from the last three days, four rows are older than three days but within thirty days, and two rows are older than a year.
The recorded concentrations show a wide spread for several pollutants. NO₂ values range from 5.3 to 24.85 µg/m³ with a median of 9.3 µg/m³; O₃ spans 8.03‑49.0 µg/m³, median 38.5 µg/m³; PM₁₀ varies between 1.7 and 23.0 µg/m³, median 12.35 µg/m³; PM₂.₅ ranges from 1.0 to 13.1 µg/m³, median 7.05 µg/m³. NO is the most tightly clustered, recorded between 3.5 and 4.9 µg/m³ with a median of 4.2 µg/m³.
Because the dataset includes only three stations, spatial coverage across Vannes is limited, and the older NO measurement highlights that not all pollutants are updated equally often. Consequently, while the recent data give a snapshot of current conditions at those sites, actual air quality can differ in other parts of the city or at times not captured by the latest timestamps.
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 Vannes includes four valid measurements and is updated within three days, with the latest values recorded on 2026‑02‑10 at 15:00 UTC. These figures represent a snapshot of ambient conditions across the city; air quality can differ by specific neighbourhoods and change throughout the day, so local variations may not be reflected in this summary.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Vannes Roscanvec | no2 | 24.85 | µg/m³ | 2017-05-31 07:00 UTC |
| Vannes Roscanvec | o3 | 8.03 | µg/m³ | 2017-05-31 07:00 UTC |
| FR19033 | no | 3.5 | µg/m³ | 2024-01-29 17:00 UTC |
| FR19033 | no2 | 9.3 | µg/m³ | 2024-01-29 17:00 UTC |
| FR19033 | o3 | 38.5 | µg/m³ | 2024-01-29 17:00 UTC |
| FR19033 | pm10 | 23.0 | µg/m³ | 2024-01-29 17:00 UTC |
| FR19033 | pm25 | 13.1 | µg/m³ | 2024-01-29 17:00 UTC |
| Vannes UTA | no | 4.9 | µg/m³ | 2024-03-11 09:00 UTC |
| Vannes UTA | no2 | 5.3 | µg/m³ | 2026-02-10 15:00 UTC |
| Vannes UTA | o3 | 49.0 | µg/m³ | 2026-02-10 15:00 UTC |
| Vannes UTA | pm10 | 1.7 | µg/m³ | 2026-02-10 15:00 UTC |
| Vannes UTA | pm25 | 1.0 | µg/m³ | 2026-02-10 15:00 UTC |