German Air Quality Index & Pollutants (Umweltbundesamt)

Get official, hourly air quality data for Germany – the air quality index plus NO₂, PM10, PM2.5, ozone, SO₂ and CO – for about 400 measuring stations run by the federal states and the Umweltbundesamt (German Environment Agency).

Ask for the latest hour, the last 24 hours, the last 7 days, or any period back to 2016. Filter by federal state, city, station, or near any location ("the 3 stations closest to my address"). No API key, no scraping, no login.

What can I use it for?

• 🏠 Real estate & location reports – air quality around an address or district.
• 📱 Apps & smart home – show current air quality, warn when it turns "poor".
• 🌱 ESG and sustainability reporting – NO₂ and particulate matter near sites and offices.
• 📰 Journalism & research – compare cities, track trends since 2016.
• 🤖 AI agents – call it as a tool via the Apify MCP server: "How is the air quality in Munich right now?"

Data you get

One row per station and hour:

Field	Meaning
stationName, stationCode, city, state, stateCode, postalCode, street	Where the station is
latitude, longitude, areaType, sourceType	Location; urban/suburban/rural; traffic/industry/background
start, end, timestampUtc	The hour measured (CET as published, plus UTC)
airQualityIndex, airQualityLabel	0 = very good, 1 = good, 2 = moderate, 3 = poor, 4 = very poor
no2, pm10, pm25, o3, so2 (µg/m³), co (mg/m³)	Pollutant values, each with its own index (no2Index, …)
distanceKm	Distance to your location (when you give coordinates)
incomplete	true if not all pollutants were available for that hour

A summary (average index, counts per level, best and worst stations) is saved in the key-value store under OUTPUT.

Example input

{
  "period": "latest",
  "latitude": "48.137",
  "longitude": "11.575",
  "maxStations": 3
}

Example output

{
  "stationName": "München/Stachus",
  "stationCode": "DEBY115",
  "city": "München",
  "stateCode": "BY",
  "areaType": "urban",
  "sourceType": "traffic",
  "start": "2026-10-06T12:00:00+01:00",
  "timestampUtc": "2026-10-06T11:00:00.000Z",
  "airQualityIndex": 1,
  "airQualityLabel": "good",
  "no2": 31,
  "pm10": 18,
  "pm25": 9,
  "o3": 52,
  "distanceKm": 0.4
}

(Values above are illustrative.)

Notes

• The source publishes times in CET (UTC+1) all year; timestampUtc gives the exact instant.
• Data for the current year is provisional; the Umweltbundesamt publishes validated data the following June.
• Not every station measures every pollutant; missing values are null.

Pricing

You pay only per row returned – no monthly fee.

Source and license

Data: Umweltbundesamt mit Daten der Messnetze der Länder und des Bundes, licensed under Datenlizenz Deutschland – Namensnennung – Version 2.0. Please keep this attribution when you publish the data. This tool is independent and not affiliated with or endorsed by the Umweltbundesamt.