Urban and industrial air quality observations
This API provides real-time, station-specific air quality observations from urban and industrial areas across Finland. Automatic continuous measuring devices record concentrations of up to seven pollutants (SO2, NO2, O3, TRS, CO, PM10, PM2.5), though the exact set varies by station, with data delivered as hourly averages updated each hour. Measurement obligations for municipalities and industry are set under Finland's Air Quality Regulation and environmental permit legislation. The Finnish Meteorological Institute collects the observations through its Air Quality Portal (ilmanlaatu.fi) and publishes them as open data.The data includes real-time station-specific air quality observations from Finnish cities and industrial areas. Concentrations of air pollutants are measured with automatic, continuous measuring devices, and the data consists of hourly averages that are updated once an hour. The data includes seven pollutant compounds (SO2, NO2,O3, TRS, CO, PM10, PM2.5), but the range of compounds to be measured varies by measuring station. The scope of air quality measurement activities in municipalities and industry is determined on the basis of the Air Quality Regulation and environmental permit legislation. The Finnish Meteorological Institute collects the data in the Air Quality Portal (ilmanQuality.fi) and distributes it to open data.
Trust score
How is this computed?Weighted across five axes. Tap a ring for what it measures.
Data access
A queryable map-feature service. Its attribute schema couldn't be read automatically — query the service endpoint directly to inspect its fields.
Verification Status
Using the API
Configuration
- Base URL
- https://opendata.fmi.fi/wfs?request=GetFeature&storedquery_id=urban%3A%3Aobservations%3A%3Aairquality%3A%3Ahourly%3A%3Amultipointcoverage
License
Terms stated by the source (not a recognized license):
1.7.2014 1. General The use of the material is governed by the terms and conditions specified in this licence. The following are regarded as the producer of open data and the holders of copyright or database rights: the Finnish Meteorological Institute, the Finnish Transport Agency and other data producers as specified in Annex 1 (hereinafter the licensors). When used, the material or the service including or utilising the material must be accompanied by information on the original source and th
Query examples
curl -s 'https://opendata.fmi.fi/wfs?service=WFS&version=2.0.0&request=GetCapabilities' -H 'Accept: application/json'List the feature types (layers) and supported operations.
Dataset
Volume & freshness
License
No license declared upstream.