Air quality in Erfurt, Thuringia, Germany today

Mr. Duck’s Air Quality Score

Moderate air today for Erfurt, Thuringia, 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 Erfurt today is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 23.58 µg/m³ and a PM10 level of 45.83 µg/m³, based on 14 valid observations recorded via OpenAQ.

These values reflect the current state of ambient air in the city. 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 Erfurt air‑quality dataset contains measurements for six pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm or less (PM10), particulate matter 2.5 µm or less (PM2.5) and sulphur dioxide (SO₂). These values come from a total of four monitoring stations, each providing a single row of data for the pollutants it records.

The most recent observations are fairly current for most gases: NO₂, PM10, PM2.5 and O₃ were all last updated on 2026‑02‑10 at 18:00 UTC, while NO was recorded earlier on 2024‑03‑11 at 11:00 UTC. SO₂ is the only parameter with older information, its latest reading dating from 2024‑12‑31 at 23:00 UTC. Across all pollutants the data span a wide range – for example, NO values vary from about 1.25 to 17 µg/m³, while NO₂ ranges between roughly 32 and 55 µg/m³. Median concentrations sit near the middle of these intervals (NO median ≈ 9 µg/m³; NO₂ median ≈ 45 µg/m³), indicating that typical levels are neither at the extreme low nor high ends observed.

Particulate matter shows a similar pattern: PM10 values lie between 19 and 46 µg/m³ with a median of 37 µg/m³, and PM2.5 ranges from 14 to 24 µg/m³ with a median around 20 µg/m³. Ozone is the most variable in terms of spread, recorded as low as 3 µg/m³ and peaking at 27 µg/m³; its median sits near 15 µg/m³. The single SO₂ measurement (2.31 µg/m³) offers no range for comparison.

Overall the dataset provides a recent snapshot for most pollutants, but coverage is uneven – especially for SO₂ and NO, where only older or fewer observations exist. Consequently, while the figures give a clear picture of current conditions at the reporting sites, they may not capture short‑term fluctuations that can occur elsewhere in Erfurt.

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 for Erfurt reflects 14 valid measurements and is updated within 3 days, with the latest values recorded at 2026‑02‑10T18:00:00+00:00. This snapshot provides a current overview of city‑wide air quality, but conditions can differ across neighborhoods and change throughout the day, so local variations may not be captured in these figures.

OpenAQ station rows