Open data service

Making better use of public data in the Helsinki region

Local government 45

Culture and recreation 65

Traffic and tourism 96

Constructed environment 137

Economy and taxation 33

Health and social services 25

Jobs and industries 31

Environment and nature 105

News

Management model brings clarity to the opening and maintenance of data

HRI participated in the EU Open Data Days 2021

HRI 10 Years Anniversary Webinar: London aims to be the number one of smart cities

How was Helsinki3D+-Minecraft created?

Latest showcases

tullinpuomi.fi

Pysäköintivirheet Helsingissä

Rantuniitty.fi

Tautitutka - Ajantasainen tartuntatautitilanne

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Recently updated data

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. The data is produced annually. New monitoring locations and results are added t...

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 qu...

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.

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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Latest updates

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. The data is produced annually. New monitoring locations and results are added t...

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 qu...

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.

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.

tullinpuomi.fi

Sivustolle on koottu Helsingin Tullinpuomin alueelta mm. joukkoliikenteen aikataulut, Töölön urheiluhallin liikuntavuorot, tietoa hiihtoladuista, luistinradoista ja iltarasteista sekä tapahtumista.

Parking violations in Vantaa

The data includes annual data on the number of parking fines by street name in Vantaa. From 2022 onwards, the data contains a breakdown of the amount of fines, due to which the statistics for 2015-2021 will be shown seperatly. Starting from 2018, the data contains place names that start with numbers...

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. Visitors are recorded by different user groups. The user groups vary to a certain extent due to the different levels of equipment and the different activit...

User survey results of the open data service of Helsinki Metropolitan Area

Open data service of Helsinki Metropolitan Area, Helsinki Region Infoshare (hri.fi), conducts an annual survey of the use of open data available through the service. The survey inquires about how open data has been used, which formats have been used and asks for suggestions to improve the distributi...