Hamburg Air Monitoring Network (HaLm)Hamburger Luftmessnetz (HaLm)

Name: Hamburg Air Monitoring Network (HaLm)
Creator: LGV Hamburg

Hamburger Luftmessnetz (HaLm)Hamburg Air Monitoring Network (HaLm)

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This API provides access to data from the Hamburg Air Monitoring Network (HaLm), operated by LGV Hamburg. The network comprises 15 monitoring stations that continuously measure air quality in accordance with EU directives and the German Federal Immission Control Act. Stations are categorized into background, ozone, and traffic monitoring types, with background stations used to assess general air quality conditions across the city, while traffic stations focus on pollution near roadways. The data is delivered via a WFS (Web Feature Service) interface, providing structured geospatial measurement values for Hamburg.Das Hamburger Luftmessnetz (HaLm) * betreibt 15 Messstationen zur Überwachung der Luftqualität * unterscheidet zwischen Hintergrund-, Ozon- und Verkehrs-Messstationen * misst kontinuierlich gemäß EU-Richtlinien und dem Bundesimmissionsschutzgesetz Die Hintergrund-Messstationen dienen der allgemei...

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Data schema (14 fields)

Click a field to see example values.

Field	Type	Description
stationskuerzel	string	Abbreviated code identifying the measuring station.Abbreviated code identifying the measuring station.
name	string	Full name of the measuring station.Full name of the measuring station.
adresse	string	Street address of the measuring station.Street address of the measuring station.
stationstyp	string	Type of measuring station, e.g. background, ozone, or traffic.Type of measuring station, e.g. background, ozone, or traffic.
stationstyp_kuerzelStationstyp kuerzel	string	Abbreviated code for the station type.Abbreviated code for the station type.
datum	string	Date of the measurement.Date of the measurement.
messzeit	string	Time of the measurement.Time of the measurement.
LQI	string	Air quality index value for the station.Air quality index value for the station.
NO2	string	Measured nitrogen dioxide concentration.Measured nitrogen dioxide concentration.
SO2	string	Measured sulphur dioxide concentration.Measured sulphur dioxide concentration.
O3	string	Measured ozone concentration.Measured ozone concentration.
CO	string	Measured carbon monoxide concentration.Measured carbon monoxide concentration.
PM10	string	Measured concentration of particulate matter PM10.Measured concentration of particulate matter PM10.
geom	geometry	Geographic location of the measuring station.Geographic location of the measuring station.

Schema captured from wfs 21 days ago.

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Sample data (3 records)

Record 1LQI: 3 · NO2: 2

{
  "LQI": "3",
  "NO2": "2",
  "PM10": "2",
  "name": "Stresemannstraße",
  "datum": "2026-07-26",
  "adresse": "Stresemannstraße 95",
  "messzeit": "16:00:00",
  "stationstyp": "Verkehrsmessstation",
  "stationskuerzel": "17SM",
  "stationstyp_kuerzel": "V"
}

Record 2LQI: 3 · NO2: 1

{
  "LQI": "3",
  "NO2": "1",
  "SO2": "1",
  "PM10": "2",
  "name": "Niendorf",
  "datum": "2026-07-26",
  "adresse": "Hainholz",
  "messzeit": "16:00:00",
  "stationstyp": "Hintergrundmessstation",
  "stationskuerzel": "83NI",
  "stationstyp_kuerzel": "H"
}

Record 3O3: 2 · LQI: 3

{
  "O3": "2",
  "LQI": "3",
  "NO2": "2",
  "SO2": "1",
  "PM10": "2",
  "name": "Sternschanze",
  "datum": "2026-07-26",
  "adresse": "Dänenweg",
  "messzeit": "16:00:00",
  "stationstyp": "Hintergrund- und Ozonmessstation",
  "stationskuerzel": "13ST",
  "stationstyp_kuerzel": "HO"
}

Live sample captured at profiling time — values may have changed upstream.

Verification Status

Using the API

Query examples

curl -s 'https://geodienste.hamburg.de/HH_WFS_Luftmessnetz?service=WFS&version=2.0.0&request=GetCapabilities' -H 'Accept: application/json'

List the feature types (layers) and supported operations.

Dataset

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Datasets

1

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License

No license declared upstream.

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