Datasets

Elevation model of the City of Helsinki. The resolution is 50 cm / pixel. Previewing the data in the kartta.hel.fi service: Elevation model (2021) Coordinate systems: Maintained in ETRS-GK25 (EPSG:3879). Can be...

Map level shows real-time air quality as an index of air quality in the permanent and mobile measurement stations of the Helsinki Region Environmental Services (HSY). The measurement result is updated hourly. HSY...

Citynature.eu offers an open REST API interface that can be used to utilise the information about nature trails from both Helsinki and Tallinn available on the site. The contents of the website are not available in...

The dataset shows the areas where the annual limit value for nitrogen dioxide (40 µg/m3) has exceeded or has been in danger of exceeding. In 2022 it was estimated that the annual limit value of nitrogen dioxide will...

The data includes the results of the noise survey (in Finnish) completed in Helsinki in the summer of 2017. The noise mapping in accordance with the EU Environmental Noise Directive was carried out for the third time....

With the Nature Information System, you can get to know the diverse nature of Helsinki. The most important natural resources of the system are nature conservation sites, valuable flora and fauna sites, important bird...

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...

Environmental permits in the City of Helsinki. The Environmental Protection Act defines the activities that require an environmental permit. The Environmental Protection Decree, on the other hand, determines whether...

The data includes traffic noise zones in the Helsinki metropolitan area (Helsinki, Espoo, Vantaa and Kauniainen). The dataset contains a breakdown of road and rail traffic noise zones, as well as day and night times....