Datasets

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.

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...

A household mixed waste composition study in the Helsinki metropolitan area is carried out every three years. The results are presented in averages and by property group as well %-share and kg/property/resident. The...

Responses to the customer survey conducted annually by HSY, question 11: "Which of the following types of waste do you sort yourself and how regularly?", years 2007-2017. The survey examines the behaviour of the...

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....

The Service Map is an open information channel on the service points and services offered by the cities of Helsinki, Espoo, Vantaa and Kauniainen. The Service Map helps the inhabitants of the municipality find current...