Air quality indices in the Helsinki metropolitan area and Uusimaa

The material contains the air quality indices of HSY’s air quality monitoring sites on an hourly basis. The air quality index divides air quality into five different classes, from good to very poor. The index classes are based on the health effects of air pollutants and on standards. When the air quality is poor, sensitive people may develop symptoms.

The material is updated four times a year (March, June, September and December).

Data and Resources

Additional information

Administrator Helsingin seudun ympäristöpalvelut HSY
Administrator's webpage http://www.hsy.fi/avoindata
Published 24.04.2015
Updated 14.06.2021
Update frequency
More information
  1. http://www.hsy.fi/ilmanlaatu
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Geographical coverage
Time series starts 1.1.2014
Time series accuracy
Licence Creative Commons Attribution 4.0
How to reference Source: Air quality indices in the Helsinki metropolitan area and Uusimaa. The maintainer of the dataset is Helsingin seudun ympäristöpalvelut HSY. The dataset has been downloaded from Helsinki Region Infoshare service on 14.06.2021 under the license Creative Commons Attribution 4.0.

Licence

Creative Commons Attribution 4.0
CC-BY-4.0 [Open Data]

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