Air quality in Allex, Auvergne-Rhône-Alpes, France today

Mr. Duck’s Air Quality Score

Good air today for Allex, Auvergne-Rhône-Alpes, 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 Allex today is classified as Good. Allex is located in the Auvergne‑Rhône‑Alpes region of France. The primary pollutant measured is PM2.5, with a recorded concentration of 0.0114 µg/m³ (based on the reference value of 0.011363636363636364). The reported PM2.5 concentration is expressed in micrograms per cubic meter, a common unit for airborne particles. Five valid measurements contributed to this assessment, and the five valid observations were collected during the monitoring interval and form the basis of the current rating. The value represents ambient levels of fine particulate matter, which are monitored regularly. No PM10 data are reported for this period. The Good category indicates that the measured values fall within the range defined for acceptable ambient conditions.

Data is 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 Allex air‑quality record draws from a single monitoring site, Château Pergaud, and comprises six data rows – one for each of the measured variables. The dataset therefore reflects conditions at one point in the city rather than a network of stations, and the values shown are the only observations available for each pollutant.

All six pollutants are reported: PM1, PM10, PM2.5, relative humidity, temperature and the particle count UM003. For the fine and ultrafine fractions the latest readings are from 2026‑02‑03 09:00 UTC, indicating that the sensor data have been refreshed within the past month. The PM10 measurement, however, dates back to 2024‑09‑23 09:00 UTC, making it the oldest entry in the set and suggesting a gap in recent monitoring for that particular fraction. The other variables – relative humidity at 64.0 %, temperature at 11.9 °C and UM003 at 137.7 particles cm⁻³ – also carry the 2026‑02‑03 timestamp, confirming their current status.

Because the record consists of a single station, each pollutant shows a single value with no observed spread: the minimum, median and maximum are identical for every parameter. PM10 registers a concentration of roughly 24.7 µg m⁻³, whereas PM1 and PM2.5 are essentially zero (0.0 µg m⁻³ and 0.011 µg m⁻³ respectively). This stark contrast highlights that the dataset captures only a snapshot of particulate matter at one location, and that broader city‑wide variations cannot be inferred from these numbers alone. Users should keep in mind that the limited spatial coverage and the older PM10 entry mean the picture of Allex’s air quality is partial and may differ across neighborhoods and times.

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 Allex includes five valid measurements and is updated within 30 days, with the latest reading recorded on 2026-02-03T09:00:00+00:00. These values represent a snapshot of current conditions; air quality can vary by location and time within the city. Users should consider this variability when interpreting the figures.

OpenAQ station rows