Air quality in Annemasse, Auvergne-Rhône-Alpes, France today
Mr. Duck’s Air Quality Score
Good air today for Annemasse, Auvergne-Rhône-Alpes, 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 Annemasse today is classified as Good. The primary pollutant measured is PM2.5, with a reference value of 1.7 µg/m³, while the accompanying PM10 reference value stands at 6.4 µg/m³. Four valid measurements underpin this assessment and are displayed via OpenAQ.
Overall conditions meet the criteria for a Good rating based on the available data. 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 Annemasse air‑quality record draws from a single monitoring station, so the dataset contains one row for each of the 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). Because there is only one station, the coverage is limited to a single point in the city rather than a network that would capture spatial variation.
The most recent observations are fairly fresh for four of the pollutants, with data updated on 2026‑02‑10 at 15:00 UTC for NO₂, O₃, PM₁₀ and PM₂.₅. The NO measurement is older, last recorded on 2024‑03‑11 at 09:00 UTC, which means the nitrogen monoxide value reflects conditions from more than a year ago while the others represent the latest snapshot available. All five pollutants have a single reported value, so the minimum, median and maximum are identical for each: NO is 22.3 µg/m³, NO₂ is 19.4 µg/m³, O₃ is 64.4 µg/m³, PM₁₀ is 6.4 µg/m³ and PM₂.₅ is 1.7 µg/m³. This lack of variability indicates that the dataset does not provide a range or distribution for any pollutant at this site.
Because only one row exists per pollutant, there are no older or unknown entries in the current set; however, the presence of an outdated NO reading highlights that some components may be less frequently refreshed than others. Consequently, while the recent data give a clear picture of the latest concentrations for most pollutants, the single‑station coverage and the stale NO value mean that city‑wide conditions could differ across neighborhoods or change between measurement times. Users should keep in mind that this snapshot reflects one location at specific moments rather than a comprehensive view of Annemasse’s air quality.
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 Annemasse are based on four valid measurements and were refreshed recently, with the latest update recorded on 2026‑02‑10 at 15:00 UTC; the dataset is therefore considered “Updated within 3 days.” Please note that air quality can vary across different neighbourhoods and times of day within the city, so this snapshot may not represent conditions everywhere or at all moments.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| ANNEMASSE | no | 22.3 | µg/m³ | 2024-03-11 09:00 UTC |
| ANNEMASSE | no2 | 19.4 | µg/m³ | 2026-02-10 15:00 UTC |
| ANNEMASSE | o3 | 64.4 | µg/m³ | 2026-02-10 15:00 UTC |
| ANNEMASSE | pm10 | 6.4 | µg/m³ | 2026-02-10 15:00 UTC |
| ANNEMASSE | pm25 | 1.7 | µg/m³ | 2026-02-10 15:00 UTC |