Air quality in Alsdorf, North Rhine-Westphalia, Germany today

Mr. Duck’s Air Quality Score

Good air today for Alsdorf, North Rhine-Westphalia, Germany

⚠️ 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 Alsdorf today is classified as Good. The primary pollutant measured is PM2.5. The latest reading shows a PM2.5 concentration of 8.19 µg/m³. This value falls well within the thresholds associated with the Good category. Five valid measurements contribute to this assessment. The measurement reflects recent sampling conducted in the city. All five observations were taken within the same monitoring period. The reported figure aligns with the reference value used for assessment.

No PM10 data is currently reported for this location. These values are displayed via OpenAQ. Data is provided through the OpenAQ platform, which aggregates measurements from participating stations. 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 Alsdorf air‑quality record draws on OpenAQ data from a single monitoring site, Kleiner Park, which supplies five measured variables. The pollutants available are PM1, PM2.5, relative humidity, temperature and the particle count UM003. All five parameters share the same most recent timestamp of 2026‑02‑03 20:00 UTC, placing the data comfortably within the last 30 days and indicating that the newest observations are current.

For each pollutant the dataset contains only one distinct value, so the minimum, median and maximum are identical. PM1 registers at 5.84 µg/m³, PM2.5 at 8.19 µg/m³, relative humidity at 40.29 %, temperature at 19.72 °C and UM003 at 1 092.2 particles/cm³. Because there is no spread among the recorded figures, the typical (median) reading is exactly the same as the single reported measurement for every pollutant.

While the timestamps are fresh, the coverage is limited to this one location, meaning the figures reflect conditions at Kleiner Park only. Consequently, variations that might exist across other parts of Alsdorf are not captured in the current set. Users should keep in mind that city‑wide air quality can differ by neighbourhood and time, and the present data provides a snapshot rather than a comprehensive view of the entire urban area.

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 dataset for Alsdorf includes five valid measurements and is updated within 30 days. The latest data were recorded on 2026-02-03 at 20:00 UTC. These figures represent a snapshot of conditions and air quality can vary by location and time within the city. Users should consider this variability when interpreting the values.

OpenAQ station rows