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...

The dataset includes data collected with an open map-based survey on the acceptability of wind power in Helsinki. The survey was carried out from 15 June to 31 August 2021, and almost 2,500 people responded. The...

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 statistical yearbook of the City of Vantaa has been published since Vantaa became a city 1974. The yearbook is a compilation work that aims to describe Vantaa and its residents as comprehensively as possible with...