Air quality in Châteauroux, Centre-Val de Loire, France today

Mr. Duck’s Air Quality Score

Good air today for Châteauroux, Centre-Val de Loire, 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 Châteauroux today is classified as Good. The main pollutant identified is PM2.5, with a measured concentration of 0.8 µg/m³, while the accompanying PM10 level stands at 1.3 µg/m³ based on four valid observations.

These figures are provided through OpenAQ data. 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 record for Châteauroux draws on eight data rows collected at two monitoring sites, all located in the Châteauroux Sud area. Five pollutants are represented: nitrogen monoxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤10 µm (PM₁₀) and particulate matter ≤2.5 µm (PM₂.₅). The most recent measurements were uploaded on 2026‑02‑10 at 15:00 UTC for NO₂, O₃, PM₁₀ and PM₂.5, while the single NO reading dates back to 2024‑03‑11 at 09:00 UTC, making it the oldest entry in the set.

Across the recent data the observed concentrations span a modest range. NO₂ values vary from a low of 2.35 µg/m³ to a high of 3.10 µg/m³, with a median around 2.73 µg/m³; O₃ shows a broader spread, ranging between 49.9 and 55.4 µg/m³ and centering near 52.6 µg/m³. PM₁₀ is the most variable, recorded as low as 1.3 µg/m³ and reaching up to 30.6 µg/m³, while its median sits at roughly 16 µg/m³. In contrast, both NO and PM₂.5 are represented by a single value each—3.1 µg/m³ for NO and 0.8 µg/m³ for PM₂.5—so no distribution can be described for those pollutants.

Four of the eight rows (half) are classified as “updated within 3 days,” indicating that recent observations are available for most parameters, but the presence of older data for NO highlights an uneven temporal coverage across pollutants. Because the dataset relies on only two stations in the southern part of the city, conditions elsewhere in Châteauroux may differ from what these measurements capture.

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 are based on four valid measurements and were refreshed recently, having been updated within three days (last update 2026‑02‑10T15:00:00+00:00). This snapshot reflects conditions at the time of sampling; air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment in Châteauroux.

OpenAQ station rows