Air quality in Wiesbaden, Hesse, Germany today

Mr. Duck’s Air Quality Score

Moderate air today for Wiesbaden, 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 Wiesbaden today is classified as Moderate. The main pollutant identified is PM2.5, with a measured concentration of 28.73 µg/m³. In addition, the PM10 level is recorded at 24.41 µg/m³ based on fifteen valid measurements.

These values reflect the current assessment provided by OpenAQ for this location. 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 OpenAQ feed for Wiesbaden in Hesse provides data on eleven measured substances: carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter of three size fractions (PM₁, PM₂.5 and PM₁₀), relative humidity, sulfur dioxide (SO₂), temperature and a miscellaneous parameter labelled UM003. The dataset contains 21 individual rows drawn from four monitoring stations across the city.

The most recent observations are generally very fresh: CO, O₃, SO₂, PM₁ and PM₂.5 were all recorded on 2026‑02‑10, with timestamps ranging between 17:00 and 19:00 UTC that same day. PM₁₀ and NO₂ also have updates from 2026‑02‑10 (18:00 UTC). In contrast, the nitrogen oxide (NO) reading is older, last reported on 2024‑03‑11, and the sulfur dioxide value dates back to 2023‑05‑09, indicating that not all pollutants are monitored with equal frequency.

Across the available data the concentrations show modest variability. PM₁₀ values range from about 23.8 µg/m³ at the lower end to roughly 25.9 µg/m³ at the upper end, with a median of 24.3 µg/m³. PM₂.5 spans a broader spread, from 19.6 µg/m³ up to 28.7 µg/m³ and a median near 20.1 µg/m³. NO concentrations vary widely, between roughly 2.9 µg/m³ and 49.4 µg/m³, while NO₂ stays tighter around the mid‑50s µg/m³ range (44.7–51.5 µg/m³). Ozone is reported as a single value of 4.24 µg/m³, and CO appears at a constant 725.73 µg/m³ in its latest record.

Overall, the dataset offers recent coverage for most pollutants but shows gaps for NO and SO₂, where the last measurements are months or years old. Consequently, while the current snapshot reflects conditions at specific stations on early February 2026, actual air quality across Wiesbaden may differ by location and time, especially for those less‑frequently updated substances.

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 Wiesbaden reflects 15 valid measurements and is marked as Updated within 3 days, with the most recent update recorded at 2026‑02‑10T19:00:00+00:00. While these figures provide a current overview of citywide air quality, conditions can differ across neighborhoods and change throughout the day, so local variations may not be captured in this snapshot.

OpenAQ station rows