Air quality in Braine-l'Alleud, Walloon Brabant, Belgium today

Mr. Duck’s Air Quality Score

Moderate air today for Braine-l'Alleud, Walloon Brabant, Belgium

⚠️ 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 Braine-l'Alleud is currently classified as Moderate. The main pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 25.22 µg/m³ based on five valid observations reported through OpenAQ.

These figures reflect the present conditions without additional interpretation. 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 Braine‑l’Alleud includes five recent measurements taken at the Groene Longen Saffierlaan site, covering PM1, PM2.5, relative humidity, temperature and UM003 (particle count). All rows come from a single monitoring station, so spatial coverage is limited to that location within Walloon Brabant.

Each pollutant shows a single recorded value because the minimum, median and maximum are identical for the latest sample taken on 2026‑02‑10 19:00 UTC. PM1 registers at 20.3208331267039 µg/m³, while PM2.5 is 25.216666618982952 µg/m³. Relative humidity is high at 92.8416674931844 %, temperature is cool at 9.325000047683716 °C and the UM003 particle concentration stands at 2114.9583333333335 particles/cm³. The “last updated” timestamp for every metric falls within three days of the current date, indicating that the data are fresh.

Because only one station contributes rows, there is no variation across the city to illustrate how conditions differ by neighbourhood or time of day. The uniformity of the values (identical min‑med‑max) also means there is no observable spread for any pollutant in this snapshot. Consequently, while the information is up‑to‑date, it represents a very narrow view of air quality in Braine‑l’Alleud and should be interpreted as a point‑in‑time reading from a single location rather than a comprehensive citywide picture.

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 Braine‑l’Alleud is based on five valid measurements and was refreshed within the past three days, with the latest update recorded at 2026‑02‑10 19:00 UTC. These figures provide a snapshot of current conditions but air quality can differ across neighbourhoods and change throughout the day, so local variations may not be fully captured in this summary.

OpenAQ station rows