Updates between 12.02.2025 and 26.02.2025.
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User survey results of the open data service of Helsinki Metropolitan Area
Open data service of Helsinki Metropolitan Area, Helsinki Region Infoshare (hri.
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Concentrations of air pollutants in Uusimaa
Monthly and annual averages of air pollution, concentrations comparable to norms, maximum hour values and data on the temporal representativeness of measurements in Uusimaa.
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Air quality monitoring sites and annual nitrogen dioxide (NO2) averages in the Helsinki metropolitan area
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 2004–2024.
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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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Water posts in the Helsinki metropolitan area
The dataset provides the locations of public water posts in the Helsinki metropolitan area.
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Number of visitors at the City of Vantaa swimming pools
The numbers of visitors to the five swimming halls owned by the City of Vantaa (Hakunila, Korso, Martinlaakso, Myyrmäki and Tikkurila) by month.
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Helsinki cyclist barometer survey answers
This dataset contains the answers to the City of Helsinki's cyclist barometer survey starting from 2014.