Air quality in Marburg, Hesse, Germany today

Mr. Duck’s Air Quality Score

Moderate air today for Marburg, Hesse, 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 Marburg today is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 12.91 µg/m³ and a PM10 level of 15.43 µg/m³, based on seven valid observations reported through OpenAQ.

Data are presented for informational purposes only; 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 data set for Marburg contains measurements for six pollutants – carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤ 10 µm (PM10) and particulate matter ≤ 2.5 µm (PM2.5). In total 14 rows of observations are drawn from three monitoring stations, so the spatial coverage is limited to a handful of points within the city.

The most recent values are generally fresh: NO₂, PM10, PM2.5, and O₃ were all last updated on 2026‑02‑10 at 18:00 UTC, while NO was recorded on 2024‑03‑11 at 11:00 UTC. CO is the outlier, with its only entry dated 2023‑07‑14 at 10:00 UTC, indicating that carbon‑monoxide information is considerably older than the other pollutants. Across the five newer pollutants the median concentrations are modest – NO sits at about 12 µg/m³ (range 2.1 to 128 µg/m³), NO₂ around 39 µg/m³ (31 to 55 µg/m³), PM10 near 15 µg/m³ (14 to 32 µg/m³) and PM2.5 roughly 13 µg/m³ (12.2 to 27.7 µg/m³). Ozone shows a single value of 19 µg/m³.

The spread of values differs by pollutant: NO exhibits the widest range, with a low‑percentile near 4 µg/m³ and a high‑percentile close to 105 µg/m³, while PM10 and PM2.5 are tightly clustered around their medians (10th percentiles 14.3 µg/m³ and 12.35 µg/m³ respectively). Because the dataset relies on only three stations, conditions can vary across Marburg depending on location and time of day, especially for pollutants like CO where the available measurement is outdated.

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 Marburg are based on seven valid measurements and were updated within 3 days, with the latest refresh recorded at 2026‑02‑10T18:00:00+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 the city.

OpenAQ station rows