Datasets Change history About Submit Last created Popular Relevance Names in ascending order Names in descending order Last modified Go 3 datasets found Domestic hazardous waste collection points in the Helsinki metropolitan area Helsinki Region Environmental Services (HSY) collects hazardous waste in Espoo, Helsinki, Kirkkonummi and Vantaa. The material includes hazardous waste collection points.... WMS WFS XLSX SHP TAB HSY’s stormwater sewerage area The data contains information on the extent of HSY’s stormwater sewerage area at property level. The stormwater sewerage area is based on Section 17 a of the Water Services Act.... WFS WMS SHP TAB 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... WFS WMS XLSX SHP TAB