Information on the website

The web service contains publications in Finnish, Swedish and English. Information included in the service can be explored using a search function. Each page provides access to the search function, contact information and feedback form.

You need an Acrobat Reader program for reading the PDF files provided on the website. You can download the program for free from the Adobe webpages.

Website cookies

Web analytics:

Using the Google Analytics app, we track the numbers of visitors, page views and other website activities on This information is used for developing the site. The website statistics include data on the number of visitors, time and duration the site is visited and browser used, plus visited page contents, among other things.

You can deny the use of website analytics cookies by choosing Kiellän kävijäseurannan or allow them by choosing Hyväksyn kävijäseurannan.

YouTube cookies:

The YouTube videos embedded on our website fall under the YouTube privacy policy, therefore data on our website visitors are not shared with YouTube unless the visitor watches the video. For additional information please refer to the Embed Videos & Playlists instruction of Google Support.

Technical functionality

Our website is responsive, which means it adjusts itself to multiple terminal sizes. The website functions best when using the latest browser versions.


The rights of the materials belong to the Helsinki Region Environmental Services Authority HSY unless otherwise stated. You are free to link to the page contents.

The copyrights of photographs, other image material and maps are owned by the photographers, image creators or by HSY. The use of the respective material must always be agreed upon separately with HSY.


HSY is responsible for the contents of The aim is that any errors discovered will be corrected as soon as possible. However, the current validity of the old reports cannot be guaranteed and neither there will be updates to old reports afterwards. HSY cannot guarantee the validity of all contents at all times.

HSY is not liable for any direct or indirect damages caused by possible errors or inadequacies of the website data to the user or to a third party. HSY is also not responsible for any direct or indirect damages caused by the use of this service or interpretation.

Our webpages contain links to other websites. HSY is neither responsible for the website contents of any external actors nor for the functionality of their links.

We aim to ensure that our web service functions smoothly and reliably. However, HSY is not liable for any possible operational breaks, for instance due to maintenance work, technical faults or other similar reasons, nor because of possible operational breaks in data communication or internet connections.

HSY is not responsible for any damages which are caused by the website activities or through any dysfunctions of the website.