Air quality in Simmerath, North Rhine-Westphalia, Germany today
Mr. Duck’s Air Quality Score
Good air today for Simmerath, North Rhine-Westphalia, Germany
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Simmerath today is classified as Good. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 0.809 and a PM10 reference value of 0.973, based on four valid observations.
Data are shown via OpenAQ. 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 Simmerath contains a single monitoring station that reports five pollutants: nitrogen monoxide (NO), nitrogen dioxide (NO2), ozone (O3), particulate matter ≤10 µm (PM10) and particulate matter ≤2.5 µg (PM2.5). The most recent measurement timestamps show a mixed picture of freshness. NO was last recorded on 2024‑03‑11 11:00 UTC, which is more than two years old, while the other four pollutants were all updated on 2026‑02‑10 17:00 UTC, i.e., within the past three days.
All reported values are single‑point observations with no variation across the dataset. For NO the concentration is 0.578 µg/m³; for NO2 it is 5.628 µg/m³; O3 registers at 35.682 µg/m³; PM10 measures 0.973 µg/m³ and PM2.5 records 0.809 µg/m³. Because each pollutant has only one recorded value, the minimum, median, maximum, 10th percentile and 90th percentile are identical for every metric.
The data therefore provide a very limited snapshot of air quality in Simmerath: there is only one row per pollutant, and except for NO the observations are recent, but the overall coverage remains narrow. Users should keep in mind that conditions can differ across neighborhoods and over time, and the single‑station record may not capture those variations.
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 Simmerath are based on four valid measurements and were refreshed recently – the dataset was updated within three days, with the latest timestamp recorded at 2026‑02‑10T17:00:00+00:00. This snapshot reflects conditions at the time of collection; air quality can differ across neighbourhoods and change throughout the day, so values may not represent every location or moment in the city.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Simmerath (Eifel) | no | 0.578 | µg/m³ | 2024-03-11 11:00 UTC |
| Simmerath (Eifel) | no2 | 5.628 | µg/m³ | 2026-02-10 17:00 UTC |
| Simmerath (Eifel) | o3 | 35.682 | µg/m³ | 2026-02-10 17:00 UTC |
| Simmerath (Eifel) | pm10 | 0.973 | µg/m³ | 2026-02-10 17:00 UTC |
| Simmerath (Eifel) | pm25 | 0.809 | µg/m³ | 2026-02-10 17:00 UTC |