Air quality in Bois-le-Roi, Ile-de-France, France today

Mr. Duck’s Air Quality Score

Good air today for Bois-le-Roi, Ile-de-France, 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 today in Bois‑le‑Roi is classified as Good. The primary pollutant measured is PM2.5, with a recorded concentration of 1.81 µg/m³ based on five valid observations. No other pollutants are reported for this assessment.

Data are shown via OpenAQ and reflect the current monitoring results. 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 Bois‑le‑Roi contains a single monitoring station that reports six different measurements: PM1, PM10, PM2.5, relative humidity, temperature and particle count (UM003). Because there is only one row of data, the coverage is limited to this lone location rather than a network across the city.

The most recent values are generally very fresh, with five of the six pollutants last updated on 2026‑02‑10 at 18:00 UTC. The exception is PM10, whose latest reading dates back to 2025‑01‑13 at 23:00 UTC, making it considerably older than the others. Across all parameters the median and the minimum values are identical, indicating that each pollutant has only a single recorded observation in the current dataset.

PM1 registers at 1.28 µg/m³, PM2.5 at 1.81 µg/m³ and PM10 at 38.37 µg/m³. Relative humidity is measured at 72.17 % and temperature at 13.30 °C. The particle concentration (UM003) stands at 331.02 particles per cm³. Because each metric has a single data point, there is no spread to describe variability; the reported minimum, median, maximum, 10th‑percentile and 90th‑percentile are all the same.

Overall, the dataset offers a snapshot of current air quality conditions at one spot in Bois‑le‑Roi, with most parameters updated within the last few days. The older PM10 reading highlights an uneven timeliness across pollutants, and the lack of multiple stations means that spatial differences within the city cannot be captured by this data alone.

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 Bois‑le‑Roi are based on five valid measurements and were updated within three days, with the latest reading recorded at 2026‑02‑10T18:00:00+00:00. This snapshot reflects conditions at the time of collection; air quality can vary across different neighbourhoods and times of day within the city, so values may not represent every location or moment precisely.

OpenAQ station rows