Air quality in Saint-Michel-l'Observatoire, Provence-Alpes-Côte d'Azur, France today

Mr. Duck’s Air Quality Score

Good air today for Saint-Michel-l'Observatoire, Provence-Alpes-Côte d'Azur, 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 Saint‑Michel‑l’Observatoire is classified as Good today. The primary pollutant measured is PM2.5, with a reference concentration of 2.6 µg/m³, while the corresponding PM10 value stands at 4.4 µg/m³ based on three valid observations.

Data are shown via OpenAQ and reflect the current monitoring results for this location. 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 dataset for Saint‑Michel‑l’Observatoire contains measurements of 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 values come from ten individual rows recorded at two monitoring stations, so the spatial coverage is limited to a small number of points within the city.

The most recent observations are from 2026‑02‑10 15:00 UTC for ozone, PM10 and PM2.5, indicating that data for these three pollutants have been refreshed within the last few days. In contrast, the latest NO and NO₂ values date back to 2024‑01‑31 08:00 UTC, meaning those two gases are currently reported from older measurements. Overall, seven of the ten rows are classified as “old” data, while none are marked unknown or very recent.

Across the pollutants the recorded ranges are narrow. NO is consistently measured at 0.2 µg/m³, with no variation between minimum and maximum values. NO₂ shows a modest spread from 0.3 to 1.8 µg/m³, with a median of about 1.05 µg/m³. Ozone levels vary between 70.5 and 85.8 µg/m³, centering around a median of 78.15 µg/m³. PM10 values sit between 4.4 and 5.1 µg/m³ (median 4.75), while PM2.5 ranges from 2.6 to 3.3 µg/m³ (median 2.95). The percentile data confirm that most readings lie close to the central values, with the 10th‑percentile only slightly above the minima and the 90th‑percentile just below the maxima.

Because a majority of rows are older than two years for NO and NO₂, the picture they provide may not reflect current conditions. The more up‑to‑date ozone and particulate measurements give a fresher snapshot, but with only two stations the data cannot capture fine‑scale variations across different neighborhoods of Saint‑Michel‑l’Observatoire.

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 Saint‑Michel‑l’Observatoire are based on three valid measurements and have been updated within 3 days, with the latest reading recorded at 2026‑02‑10T15:00:00+00:00. These values provide a snapshot of current conditions but air quality can differ across neighbourhoods and change throughout the day, so local variations may not be reflected in this summary.

OpenAQ station rows