Air pollutant concentrations in the Helsinki metropolitan area
Monthly and annual averages of air pollutants in the Helsinki metropolitan area, concentrations comparable to standards, maximum hourly values and data on the temporal representativeness of monitoring.
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Additional information
Published:
02.09.2015
Updated:
06.03.2025
Update frequency:
year
Additional information:
https://www.hsy.fi/ilmanlaatu
Categories:
Environment and nature
Air quality and climate
Keywords:
air quality
air pollutants
environment
Timeseries starts:
1994
Timeseries precision:
month
License
Creative Commons Attribution 4.0