Pollen stations
MeteoSwiss operates the national pollen monitoring network. It consists of around 15 monitoring stations which cover Switzerland's most important climatic and vegetation regions. The measurements obtained provide invaluable information for those who suffer from allergies.
Additionally since 2023 the new automatic pollen network is operational: for the first time in the world, instead of daily averages being available after a week, airborne pollen concentrations (No/m³, number of grains per cubic metre of air) of Birch, Beech, Oak, Alder, Ash, Grasses and Hazel are available in real time at an hourly resolution.
Data download
We are currently setting up our service as Beta. During this phase everything is subject to change without prior notice.
- All files are available for all stations.
You can access the available Open Data via https://data.geo.admin.ch/browser/index.html#/collections/ch.meteoschweiz.ogd-pollen
Data structure
- Files per station
The data is split by measuring station. A file for a station contains all available parameters in one file. There are files with hourly h and daily d values.
We strongly recommend that you download the corresponding aggregated data granularity.
Granularities h and d contain average pollen concentrations.
Depending on the granularity there are files with update frequency now,recent and historical.
See e.g. files for station Lausanne (PLS) with all granularities and update frequencies mentioned: ogd-pollen_pls_(data granularity)_(update frequency).csv.
Data format
CSV with an estimated volume of ≤0.6 MB per file.
Metadata
- Parameter
- Stations
- Data inventory
All parameters have a unique identifier that depends on the time resolution .
ogd-pollen_meta_parameters.csv provides a list of all parameter identifiers with explanation, time interval, decimal places, data type and unit of measurement.
All stations have a three-letter identifier (e.g. BER for "Bern/Zollikofen" or LUG for "Lugano").
ogd-pollen_meta_stations.csv provides a list of all station identifiers with name, Canton, Wigos ID, station type, altitude, coordinates, orientation and URL of the station details pages.
ogd-pollen_meta_datainventory.csv provides a list of all stations and parameters with start and end date of the measurements.
Data usage
See e.g. MeteoSwiss' POLLEN network map.