Background air quality observations
This API provides real-time, station-specific background air quality observations maintained by the Finnish Meteorological Institute. Air pollutant concentrations are measured using continuous automatic monitoring devices, with data consisting of hourly averages updated once per hour. Measurements cover up to five pollutant compounds - sulphur dioxide (SO2), nitrogen dioxide (NO2), ozone (O3), PM10, and PM2.5 - though the specific set of compounds monitored varies by station. The dataset offers national coverage across Finland and supports monitoring of ambient air quality conditions over time.The data includes real-time station-specific air quality observations maintained by the Finnish Meteorological Institute. Concentrations of air pollutants are measured using continuous automatic measuring devices. The data consists of hourly averages that are updated once an hour. There are five pollutant compounds in total (SO2, NO2,O3, PM10, PM2.5), but the range of compounds to be measured varies by measuring station.
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=fmi%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.