Air quality in Mont-Saint-Martin, Auvergne-Rhône-Alpes, France today

Mr. Duck’s Air Quality Score

Good air today for Mont-Saint-Martin, 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 Mont‑Saint‑Martin is classified as Good today. The primary pollutant measured is PM2.5, with a recorded concentration of 0.215 µg/m³ based on five valid observations from OpenAQ.

No other pollutants reached the reporting threshold, and the data set includes only the available fine‑particle measurement. 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 Mont‑Saint‑Martin air‑quality feed draws from a single monitoring site that supplies six rows of data, one for each measured variable. The dataset therefore covers PM1, PM10, PM2.5, relative humidity, temperature and the particle count UM003. For most pollutants the latest reading was recorded on 2026‑02‑10 at 17:00 UTC, showing a very recent snapshot of conditions. The exception is PM10, whose most recent value dates back to 2025‑01‑13 at 23:00 UTC, indicating that this particular measurement is older than a year.

All six variables show identical minimum, median and maximum values because each has only one recorded entry. PM1 registers 0.03466666638851166 µg/m³, while PM2.5 is 0.21533333361148835 µg/m³ and PM10 stands at 10.677041610081991 µg/m³. Relative humidity is measured at 37.92116705576579 % and temperature at 15.29766672452291 °C. The particle concentration UM003 records 131.60833333333332 particles per cubic centimetre. Because each pollutant has a single data point, the spread (10th‑90th percentile) is identical to the recorded value, so no variability can be assessed from this snapshot.

The overall picture is one of very limited temporal coverage: five of the six variables are fresh within the last three days, but PM10 remains outdated. With only one station contributing, spatial representation across Mont‑Saint‑Martin is minimal, meaning that conditions may differ in other neighbourhoods or at other times. Users should keep in mind that the dataset provides a narrow view—recent for most pollutants but incomplete for particulate matter larger than 2.5 µm—and that broader monitoring would be needed to capture city‑wide fluctuations.

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 current figures are based on five valid measurements and have been updated within three days, with the latest data recorded at 2026‑02‑10T17:00:00+00:00. These values represent a snapshot of air quality across Mont‑Saint‑Martin and may differ by specific neighbourhoods or times of day; conditions can change rapidly, so this information should be used as an indicative overview rather than a precise real‑time reading.

OpenAQ station rows