Air quality monitoring sites and annual nitrogen dioxide (NO2) averages in the Helsinki metropolitan area

6.3.2024 - Helsingin seudun ympäristöpalvelut (HSY)

Monitoring site data includes permanent monitoring sites, mobile monitoring sites and passive samplers, as well as the annual average concentrations (μg/m3) of nitrogen dioxide (NO2) measured at these sites in 2004–2023.

The data is produced annually. New monitoring locations and results are added to the map annually. Passive sampler monitoring started in 2004.

Coordinate system of the data is ETRS-GK25.

The data can be viewed and downloaded in HSY’s open map service.

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Data and Resources

Additional information

Metadata API

Administrator	Helsingin seudun ympäristöpalvelut HSY
Administrator's webpage	http://www.hsy.fi/avoindata
Published	27.02.2017
Updated	06.03.2024
Update frequency	year
More information	https://www.hsy.fi/ilmanlaatu-ja-ilmasto/mista-saat-ilmanlaatutietoja/ https://www.hsy.fi/ilmanlaatu-ja-ilmasto/
Categories	Maps Environment and nature
Data collections	Air quality and climate Open APIs
Tags	air quality air pollutants nitrogen dioxide environment
Geographical coverage	Helsinki Espoo Vantaa Kauniainen Pääkaupunkiseutu
Time series starts	2004
Time series accuracy	year
License	Creative Commons Attribution 4.0
How to reference	Source: Air quality monitoring sites and annual nitrogen dioxide (NO2) averages in the Helsinki metropolitan area. The maintainer of the dataset is Helsingin seudun ympäristöpalvelut HSY. The dataset has been downloaded from Helsinki Region Infoshare service on 23.11.2024 under the license Creative Commons Attribution 4.0.

License

Creative Commons Attribution 4.0