Information on STUK's website

You have arrived at the website of the Radiation and Nuclear Safety Authority (STUK), which was launched in May 2023. The website is STUK’s central channel of information, which provides information on matters related to radiation and nuclear safety in Finland. It is possible that you will not find the answer to your individual situation or need for information on this page. In that case, you can contact us through our contact form.

Technical implementation

Our website has been created using the Liferay EE 7.1 publishing system. The user interface is responsive, so it scales according to the user’s terminal device. The aim in planning the website’s appearance and the user interface was to reach the level AA of the WCAG 2.0 accessibility guidelines.

Site information security

The information security of our website is verified by a third party and its data traffic is SSL-protected, which means that unauthorized persons cannot monitor or change your internet traffic.
If you find a vulnerability or weakness on our website, please report it to our Registry using the contact form or by email to [email protected].

You need Adobe Acrobat Reader to read the PDF documents on the website. You can download it for free from Adobe's website

Processing of personal data on our website

We are committed to protecting the privacy and personal data of visitors to our website in accordance with the Personal Data Act and the EU General Data Protection Regulation (2016/679). Using our website does not require registration. We do not collect information from which an individual visitor can be identified. Read more about the processing of personal data on the website.


We use cookies on our website. Cookies are small text files that your browser stores on your device. When you arrive at the website, we ask for your consent to the use of cookies. The website uses both cookies necessary for the operation of the site and cookies for visitor tracking and quality control. For more information, see the cookie policy of our website.


Our goal is for our website to be accessible to as many people as possible. We welcome feedback and are constantly improving our website. Learn more about the accessibility of our website


The rights to the text and image material published on the website are held by the Radiation and Nuclear Safety Authority (STUK) or another information provider as noted in connection with the document, in accordance with the Copyright Act and its subsequent amendments. Images on our website may not be manipulated or altered without permission. The images may not be exploited in an inappropriate or unethical way or used for marketing, advertising or other commercial purposes. The user may not transfer the right of publication to a third party.

If you use the Radon maps of Finland published on our website, the following information must be mentioned in connection with the map: Source: STUK (base map: National Land Survey of Finland).
In matters concerning the use of material published on our website or linked to it, please contact our communications either via our switchboard on weekdays from 8 a.m. to 4:15 p.m.,
tel. +358 (0)9 759 881, or by email to viestinta(at)

Legal provision

We have made every effort to ensure that the content and information of our website is correct and up-to-date. However, we are not liable for any direct or indirect damage caused to the user by possible errors in the content. We are also not liable for any harm caused by technical malfunctions or material linked to the website that has been published by third parties.

Links and social media

The internal links of the service mainly open in the same browser window. The links external to the service open in a new browser window.

If a link takes the visitor away from our website, we are not responsible for the type of information that the website collects. For example, videos are located on YouTube, which collects information about users. The content of our website can be shared on Twitter and Facebook.

When you access the linked pages, the terms of use of the respective website apply. We recommend that you familiarize yourself with the privacy policy of other websites and the processing of personal data separately. We are not responsible for updates, posts or the accuracy of the information on these third party websites. A link to a third party website on our website does not imply that we are responsible for the operation of the third party website or for the products and services offered or mentioned on the website.

Subscription service for newsletters (to be introduced later)

It is possible to subscribe to our press releases, online news and blog posts in Finnish to be sent directly to the email provided by the user. When you subscribe to up-to-date information on our website, you give your permission to store your contact information for the purpose of sending you newsletters. The processing of the information is based on your consent.

You can read more about the processing of the subscriber's personal data in the communications’ privacy policy (to be published later).

You can also subscribe to our press releases, online news and blog posts in Finnish as RSS feeds.


Our publications are published in the Julkari electronic publication archive, which also produces listings for our website. STUK’s own publications are published in full as PDF files. The foreword and abstract, or some of the publications, are also published in html format. Our electronic publications are free of charge. Go to to view our publications.

Contacting us

We are constantly developing our website. You can provide feedback on the content of the pages using the feedback form on the pages. The feedback form does not ask for personal data. With the feedback form, you can also submit feedback or a request for information on other matters. We only store the contact and other information that the user has separately provided in the feedback form, which we can use to respond to the user's contact requests, questions or other feedback.
You can find information on the processing of feedback in the privacy policy (to be published later).

Website administrator

The main user of our website is a designated communications specialist. In questions concerning our website, you can contact our communications either via our switchboard on weekdays from 8 a.m. to 4:15 p.m., tel. +358 (0) 9 759 881, or by email to viestinta(at)