Air quality in Hanover, Lower Saxony, Germany today

Mr. Duck’s Air Quality Score

Moderate air today for Hanover, Lower Saxony, Germany

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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 Hanover today is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 13.72 µg/m³ and a PM10 level of 18.3074017 µg/m³, based on seven 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 Hanover includes six measured 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). Data come from ten rows representing two monitoring stations, one of which is a traffic‑focused site that supplies the CO reading.

Freshness varies across the pollutants. The most recent observations were recorded on 2026-02-10 at 18:00 UTC for NO₂, PM₁₀, PM₂.5, O₃ and CO, showing that these five compounds have up‑to‑date information within the last three days. In contrast, the NO values are older, with the latest entry dated 2024-03-11 at 11:00 UTC, indicating a gap of almost two years for this particular measurement.

The recorded concentrations span modest ranges. NO shows a minimum of 1.22 µg/m³ and a maximum of 17.27 µg/m³, with the median around 9.25 µg/m³, suggesting notable variability at the single station that reports it. NO₂ values range from 27.79 to 40.65 µg/m³, clustering tightly around a median of 34.22 µg/m³. PM₁₀ measurements are confined between 15.06 and 18.31 µg/m³ (median ≈ 16.69 µg/m³), while PM₂.5 values vary only from 13.10 to 13.72 µg/m³, reflecting a very narrow spread. O₃ is reported as a single constant value of 32.09 µg/m³, and CO appears at a fixed level of 371.65 µg/m³ from the traffic site.

Overall, the dataset offers recent coverage for most pollutants but relies on limited station count, especially for NO where data are outdated. Consequently, while the figures give a snapshot of current air quality in Hanover, conditions can differ across neighborhoods and times not captured by these rows.

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 current dataset for Hanover includes seven valid measurements and was updated within three days, with the latest refresh on 2026‑02‑10 at 18:00 UTC. These figures represent a snapshot of conditions across the monitoring network; actual air quality can differ by specific location and time of day within the city, so values should be interpreted as an overview rather than precise point‑by‑point readings.

OpenAQ station rows