Air quality in Riom, Auvergne-Rhône-Alpes, France today
Mr. Duck’s Air Quality Score
Good air today for Riom, 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 Riom today is classified as Good. The primary pollutant identified is PM10, with a measured reference value of 3.4 micrograms per cubic metre based on three valid observations recorded by OpenAQ.
These measurements indicate that particulate matter 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 dataset for Riom includes four measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), ozone (O₃) and particulate matter ≤ 10 µm (PM10). The data come from two monitoring stations, providing a total of six individual rows. For three of the pollutants (NO₂, O₃ and PM10) the most recent readings were recorded on 2026‑02‑10 at 15:00 UTC, so those values are fresh within the last three days. In contrast, the NO measurement is older, with its latest entry dated 2024‑03‑10 at 09:00 UTC, meaning that information for this gas has not been updated for almost two years.
Across the recent data the observed concentrations show a modest spread. NO₂ values range from a low of 6.68 µg/m³ to a high of 12.40 µg/m³, with a median around 9.5 µg/m³; the 10th and 90th percentiles sit at roughly 7.3 and 11.8 µg/m³ respectively. Ozone displays a broader interval, from 46.3 µg/m³ up to 114.8 µg/m³, median 80.6 µg/m³, with the lower decile near 53.2 and the upper decile close to 108 µg/m³. PM10 is reported at a single value of 3.4 µg/m³, while NO is also represented by a single recent‑ish figure of 1.2 µg/m³.
Because only two stations contribute data, spatial coverage across the city is limited and the dataset contains several older or singular entries. Consequently, while the recent numbers give a snapshot of current conditions for most pollutants, they may not capture variations that occur in different neighbourhoods or at times beyond the latest updates.
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 Riom are based on three valid measurements and were updated within 3 days, with the latest reading recorded at 2026‑02‑10 15:00 UTC. This snapshot reflects conditions at a specific time and place; air quality can differ across neighborhoods and change throughout the day, so values may not represent the entire city’s current environment.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| FR07032 | no2 | 6.68 | µg/m³ | 2018-08-23 12:00 UTC |
| FR07032 | o3 | 114.8 | µg/m³ | 2018-08-23 12:00 UTC |
| Riom Périurbaine | no | 1.2 | µg/m³ | 2024-03-10 09:00 UTC |
| Riom Périurbaine | no2 | 12.4 | µg/m³ | 2026-02-10 15:00 UTC |
| Riom Périurbaine | o3 | 46.3 | µg/m³ | 2026-02-10 15:00 UTC |
| Riom Périurbaine | pm10 | 3.4 | µg/m³ | 2026-02-10 15:00 UTC |