Contact us
Report a radiation safety deviation
Serious radiation safety incidents and radiation hazards must be reported by telephone:
- Radiation and Nuclear Safety Authority, switchboard: 09 759 881 (weekdays 8 a.m.–4:15 p.m.)
- General emergency number: 112 (outside office hours).
- Ask the emergency center to forward your call to the Radiation and Nuclear Safety Authority's on-call duty officer.
Radiation and Nuclear Safety Authority of Finland
Address: Jokiniemenkuja 1, 01370 Vantaa
Finland
Main entrance:
On the Jokiniemenkatu side (Jokiniemenkatu 28)
Switch board: +358 9 759 881
Email: [email protected]
Invoices
E-billing address/Party Identifiations Number: 003702458699
Operator ID: Posti Messaging Oy/ FI28768767
Peppol e-invoicing address: 0216:003702458699
VAT number: FI02458699
If you are not able to send e-invoices, please use the below mentioned address for paper invoices:
Säteilyturvakeskus
P.O. Box 7096
01051 LASKUT
Finland
The price for calls
The price for calls to STUK is the local network fee or the mobile call fee charged by the caller's operator. When calling from abroad, the price is determined by the local operator.
Official information requests
Send your message to [email protected] or by using the web form. Please include your e-mail address if you are looking for a personal answer.
Please do not send messages containing any other types of personal data (e.g. personal identification number of other confidential information).
The information delivered in the form is directed to the processing system at STUK Registry.
Official information requests may subject a fee.
The list of charges for services and information request under public law of radiation and Nuclear Safety Authority (STUK), updated 9 Apr 2025 (pdf)
How to contact STUK
You can contact us by email, by calling our service number or by sending a message using the feedback form. In the menu below, you can find contact information by topic and instructions on how to select the subject for the feedback form. You can find the button to the feedback form below this text.
We do not recommend using email for sending private or confidential information.
You can use STUK’s classified email for sending confidential information.
Requests for information under the Act on the Openness of Government Activities
The Radiation and Nuclear Safety Authority (STUK) discloses documents and information on the basis of the principle of openness and the Act on the Openness of Government Activities. In accordance with the principle of openness, the general legal premise applied to information is putative access. After receiving a request for information, STUK will determine whether the document or information is public, confidential or partly restricted under the Act on the Openness of Government Activities. It is possible that STUK does not have the requested information.
Submitting a request for information
When you want a document or information from STUK, we ask you to identify the information you want to access as clearly as possible. Short and sufficient identifying data makes our work easier and speeds up responding to your request for information. Responding the request is easier if you provide appropriate, temporal and regional identification for the request. Using the subject, title, or number of the document as search criteria will help us find the requested information.
In general, it suffices for you submit only the relevant information for a request for information. So, usually when requesting access, you do not need to identify yourself nor declare the use to which the information is to be put. However, in certain situations the person requesting access shall identify themselves and provide reasons for the request and, if necessary, explain what arrangements have been made for the protection of the information. The person requesting access has the duty to independently examine the matter when the request concerns confidential information or a document. Similarly, if access to information on a document can be granted only subject to certain conditions, i.e. based on the party’s right of access for example, the party requesting access has the examination duty.
If necessary, we provide assistance and advice on how to submit a request for information. Advice is provided free of charge.
Contacting us
You can send your information requests, for example, by email to the Radiation and Nuclear Safety Authority’s registry at [email protected]. You can also submit a request for information via the feedback form on our website. When using the feedback form, select “Request for information” as the subject of your feedback from the drop-down menu.
Fees charged
The provision of information may be free of charge. In some cases, a cost-based fee is charged. A fee is charged for any copies or printouts.
The list of charges for the services and information requests under public law of the Radiation and Nuclear Safety Authority (STUK)
You can send our experts questions about laser devices and their use
- Further information on lasers
- Send your messages about the topics above by email to [email protected]
- The use of high-power lasers in public events requires a licence from the Radiation and Nuclear Safety Authority.
- More detailed information on the laser licence, how to apply for it and the requirements for using lasers can be found on the page laser performances.
- Send your message related to laser licences by email to [email protected].
You can send our experts questions about equipment being used at home and in the office and about cellular base stations
- Further information on radiation in appliances
- Further information on base stations
- Send your messages about the topics above by email to [email protected].
If you want to order radioactivity measurements or radiation meter calibration services from STUK, please contact:
- [email protected] (radioactivity measurements from samples)
- [email protected] (calibration services, irradiations, leakage radiation measurements)
For further information on STUK’s measurement services and ordering them, see the page measurement and calibration services.
STUK’s media service is available to media representatives on weekdays between 8:00 a.m. and 4 p.m.
Media service’s phone number is +358 10 850 4761 and email address [email protected].
Communications manager Piia Kaijanto, tel. +358 9 7598 8285
Communications Specialist Risto Isaksson, tel. +358 9 7598 8208
If you cannot find a suitable subject for your question on the drop-down menu, you can submit your question using the feedback form by selecting “other” as subject from the menu. If you wish, you can also email your questions directly to the Radiation and Nuclear Safety Authority’s registry at [email protected].
We are happy to receive feedback and suggestions on how to develop our website. Our goal is to serve the users in the best possible way and to provide interesting, reliable and up-to-date information on nuclear and radiation safety issues.
You can also send feedback directly by email to [email protected].
You can contact us about the following subjects:
- High-activity sealed sources
- Other radioactive substances
You can contact us about the following subjects:
- Radon in workplaces
- Radon in underground mines
- Radon at underground excavation sites
- Radon at tunnel sites
- Radon at waterworks
- Radon in other premises used by people
- Radon measurements in housing companies and at homes
Questions related to radon monitoring in workplaces can be sent by email to [email protected].
Questions related to housing companies and radon measurements in dwellings can be sent by email to [email protected].
Questions related to radon measurements can be sent by email to [email protected].
If you use the online feedback form, depending on the topic of your question, select “Radon measurements, Radon (for dwellings)” or “Radon regulation of workplaces” as subject from the drop-down menu.
Artificial radioactive materials in the environment
You can send our experts questions related to, for example, the concentration of caesium-137, strontium-90 and tritium in the environment, food or domestic water.
Submit your question using the feedback form on our website by selecting “Environmental radiation” as subject from the drop-down menu.
Instructions for measuring the radioactivity of domestic water can be found in the section Measurement and calibration services.
- You can send our experts questions about the use of laser, RF, light impulse, ultrasound and other such devices in beauty care or about sunbed services.
- Further information about beauty care and sunbed services
- Send your messages about the topics above by email to [email protected]
- We do not recommend using email for sending private or confidential information. If you want to report any injuries, and the message contains, for example, your health information, you can use STUK’s classified email.
You can contact us about the following subjects:
- Use of X-ray equipment
- Use of sealed sources
- Use of unsealed sources
- Use of particle accelerators
- Orphan sources
- Aviation
- Trade, export and import
- Installation, repair, maintenance and manufacturing
Contact us by email at [email protected].
You can contact us about the following subjects:
- X-ray practices
- Nuclear medicine
- Radiotherapy
- Radiographic examinations on animals and radionuclide therapy for animals
- Research and teaching activities in health care
- Trade, export and import (radiation sources in health care)
- Installation, repair, maintenance and manufacturing (radiation sources in health care).
Send your messages about the topics above by email to [email protected].
- Dental X-ray practices
Send your messages about dental X-ray practices by email to [email protected].
You can also send us your questions or feedback using the online feedback form.
You can send your questions to our experts either by email at [email protected] or by using the online feedback form and selecting “Dose register” as subject from the drop-down menu.
For further information, see the occupational radiation exposure and the worker’s medical surveillance page.
You can send our experts questions about such things as solar UV radiation, its health effects and protecting yourself from the sun, as well as devices that emit UV radiation, such as disinfection lamps.
- Further information on the sun’s UV radiation
- Get acquainted with the “Sun iho” online campaign (in Finnish)
- Send your messages about the topics above by email to [email protected]
You can send our experts questions about electromagnetic fields caused by power lines, transmission of electricity at home, etc.
- Further information on electricity networks and power lines
- Send your messages about the topics above by email to [email protected].
You can send our experts questions regarding nuclear safety, the supervision of the use of nuclear energy or the licensing of nuclear facilities. Submit your question using the online feedback form by selecting “Nuclear power and safety” as subject from the drop-down menu.