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Press releases and news Current press releases and news from STUK are published here. Please enter one or more search word Select year All 2026 2025 2024 2023 2022 2021 Search Clear 106 results 03.09.2026 12.01 Press release IAEA Press Release: IA...https://stuk.fi/en/press-releases-and-news
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organisation and management team The Radiation and Nuclear Safety Authority (STUK) is the authority responsible for supervising radiation and nuclear safety in Finland. STUK’s operations are based on the Act on the Radiation and Nuclear Safety Aut...https://stuk.fi/en/organisation-and-management-team
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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 Stuk.fi website is STUK’s central channel of information, which provides information on matters...https://stuk.fi/en/information-on-stuk-s-website
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Preparedness for radiation hazards Although the likelihood of a serious radiation hazard situation in Finland is small, preparations have been made, as an accident cannot be completely ruled out. The Radiation and Nuclear Safety Authority (STUK) m...https://stuk.fi/en/preparedness-for-radiation-hazards
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Cooperation STUK supervises and develops Finland’s radiation safety in co-operation with domestic and foreign partners. Important domestic partners include, for instance, different ministries: the Ministry of Social Affairs and Health in matters r...https://stuk.fi/en/networks-and-co-operations
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Subscribe news articles With the form below, you can subscribe to the Radiation and Nuclear Safety Authority's (STUK) latest press releases, news, and blog posts. Choose from the form below which of STUK's published articles you would like to rece...https://stuk.fi/en/subscribe-stuk-s-news-articles
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STUK supervises radiation practices The Radiation and Nuclear Safety Authority (STUK) supervises the safety of the use of ionising radiation and other radiation practices. The supervision consists of inspections of the radiation facility and other...https://stuk.fi/en/stuk-supervises-radiation-practices
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What could threaten Finland? Impacts of a radiation accident can only affect a large area if large amounts of radioactive gases and particles are released into the air. Depending on the weather conditions, a serious nuclear power plant accident in...https://stuk.fi/en/what-could-threaten-finland-
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Anonymized radiation safety deviations On this page STUK publishes anonymized descriptions of the radiation safety incidents that must be reported without delay, the reasons for them, the resolution of the deviations and the measures to prevent si...https://stuk.fi/en/anonymized-radiation-safety-deviations
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Instructions for members of the public If the situation requires immediate protection, people are warned with a general emergency signal, which is a continuous acoustic signal, ascending and descending. In addition, the public will be warned by me...https://stuk.fi/en/instructions-for-members-of-the-public
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The Posiva encapsulation plant and final disposal facility Posiva Oy (Posiva) will soon start operating an encapsulation plant and final disposal facility for spent nuclear fuel in Olkiluoto, Eurajoki. The facility will be used for the packaging a...https://stuk.fi/en/final-disposal-facility
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Peaceful use of nuclear energy The aim of international safeguards is to ensure that nuclear materials are not diverted from peaceful uses to nuclear explosive devices and that activities do not contribute to nuclear proliferation. It is based on ...https://stuk.fi/en/peaceful-uses-of-nuclear-energy
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Electricity networks generate electric and magnetic fields Electricity is transmitted from power plants to consumers through the electricity networks. They consist of various electrical lines and cables, substations and distribution substations, a...https://stuk.fi/en/electrical-networks-and-power-lines
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Regulatory oversight of nuclear safety Regulatory oversight of nuclear safety and security is based on the obligations and responsibilities set out in the Nuclear Energy Act (990/1987). The licensee must ensure safety, and STUK confirms through it...https://stuk.fi/en/regulatory-oversight-of-nuclear-safety
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Radiation protection training and qualifications In order to use radiation and nuclear energy and carry out other work involving exposure to radiation safely, everyone involved in the operations must have the necessary know-how. All employees must...https://stuk.fi/en/radiation-protection-training
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Beauty care and sunbed services Non-ionizing radiation is used in sunbeds and many beauty care devices. It is important that the operators are familiar with the characteristics of the devices they use, the risks associated with the use of radiatio...https://stuk.fi/en/beauty-care-and-sunbed-services
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Final disposal of nuclear waste Many countries that use nuclear energy have disposal facilities for low- and intermediate-level nuclear waste. However, no country has yet started operating a final disposal facility for high-level waste disposal. I...https://stuk.fi/en/final-disposal-of-nuclear-waste
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Actions in a radiation hazard situation Instructions for members of the public in the event of a radiation hazard situation Instructions Information sources for members of the public Finland has never had a radiation hazard situation in which ther...https://stuk.fi/en/actions-in-a-radiation-hazard-situation
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Valitse kieli Suomi Välj språket Svenska Select language English STUK's finances and personnel in 2022 STUK's operations are net-budgeted, which means that part of the expenditure is covered by the agency's own supervisory and service revenue. In ...https://stuk.fi/en/stuk-s-finances-and-personnel-in-2022
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Radon concentration during working hours In workplaces, ventilation is often scheduled according to working hours, for example at nights and weekends, ventilation is set at a lower level or switched off completely. In this case, radon levels tend ...https://stuk.fi/en/radon-concentration-during-working-hours
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Shade in outdoor areas provides effective protection from UV radiation Promoting sun protection is part of promoting the well-being and health of citizens and society as a whole. An easy way to promote sun protection is to add shade to outdoor rec...https://stuk.fi/en/shade-protects-against-uv-radiation
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Fukushima nuclear power plant accident The Fukushima Dai-ichi nuclear power plant located on the east coast of Japan was severely damaged on 11 March 2011, and radioactive substances were released for several days into the sea and the area surroun...https://stuk.fi/en/fukushima-nuclear-power-plant-accident
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Valitse kieli Suomi Välj språket Svenska Select language English R&D supports monitoring and preparedness The Radiation Safety Authority (STUK) conducts research and development (R&D) that supports the monitoring of the use of radiation and nuclea...https://stuk.fi/en/r-d-supports-monitoring-and-preparedness
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Waste containing naturally occurring radioactive substances Waste containing naturally occurring radioactive substances is not radioactive waste as defined in the Radiation Act (859/2018) but waste as defined in section 78, subsection 3 of the Act...https://stuk.fi/en/waste-containing-naturally-occurring-radioactive-materials
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For the user of radiation On these pages we have compiled information for professional users of radiation. Prerequisites for a safety licence STUK supervises radiation practices Radiation safety deviations Radiation protection training and qualifi...https://stuk.fi/en/for-the-user-of-radiation
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Valitse kieli Suomi Välj språket Svenska Select language English A year of developing preparedness The Radiation and Nuclear Safety Authority (STUK) maintains and develops its continuous preparedness to respond to various radiation hazards and pre...https://stuk.fi/en/a-year-of-developing-preparedness
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Radioactivity in the Baltic Sea Finland has been a forerunner in the monitoring of radioactivity in the Baltic Sea. Radioactivity surveys were initiated as early as the end of the 1950s by the Radiation and Nuclear Safety Authority’s (STUK) predec...https://stuk.fi/en/radioactivity-in-the-baltic-sea
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Prerequisites for a safety licence On this page you will find information on the obligations of all undertakings with regard to the safe use of radiation. Safety assessment concerning a radiation practice In practices subject to a safety licence, ...https://stuk.fi/en/prerequisites-for-a-safety-licence
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Nuclear tests in the atmosphere Fallout from past nuclear tests is still detected in Finnish nature. Altogether 512 nuclear tests have been performed in the atmosphere at a number of sites. Most of these tests took place between 1945 and 1963. The...https://stuk.fi/en/nuclear-tests-in-the-atmosphere
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Studies after the Fukushima accident Following the Fukushima Dai-ichi nuclear power plant accident in March 2011, a number of studies were launched on how the lessons learned from the accident should be taken into account in improving the safety o...https://stuk.fi/en/studies-after-the-fukushima-accident
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Workplace radon concentrations in Finland Indoor radon levels may vary greatly even within one postal code area. In addition, the way the house is built affects the radon concentration. Search the regional workplace radon measurement data The sear...https://stuk.fi/en/workplace-radon-concentrations-in-finland
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Valitse kieli Suomi Välj språket Svenska Select language English Radiation measurement data for 2024 The Radiation and Nuclear Safety Authority (STUK) provides companies and private citizens, among others, with various radiation-related measuremen...https://stuk.fi/en/radiation-measurement-data-for-2024
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Regulatory oversight of nuclear facilities STUK oversees the Loviisa and Olkiluoto nuclear facilities and Posiva's encapsulation and final disposal facilitys of spent nuclear fuel. In addition, STUK supervises the decommissioning of VTT’s research...https://stuk.fi/en/regulatory-oversight
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International reviews of STUK’s operations The IRRS review every ten years The Integrated Regulatory Review Service (IRRS) by the International Atomic Energy Association (IAEA) focuses mostly on supervision activities and accident preparedness of ...https://stuk.fi/en/international-reviews-of-stuk-s-operations
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Fees for radiation practices regulation The content of this page is available in Finnish and Swedish. If you have any inquiries please contact [email protected] Hiddenhttps://stuk.fi/en/fees-for-radiation-practices-regulation
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The content of this page is only in Finnish and Swedish. If you have any inquiries please contact us at [email protected] . Hiddenhttps://stuk.fi/en/about-radon-regulation-in-general
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Sheltering indoors reduces radiation exposure People should take cover indoors for the time it takes for the radioactive plume to pass. The ventilation must be turned off and the ventilation openings sealed as far as possible. Staying indoors prot...https://stuk.fi/en/sheltering-indoors-reduces-radiation-exposure
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40 years since Chernobyl accident A serious nuclear accident occurred at the Chernobyl Nuclear Power Plant, located in what is now Ukraine, on April 26, 1986. The accident began with a test of experimental equipment, which led to a loss of control...https://stuk.fi/en/40-years-since-chernobyl-accident
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Ultraviolet radiation causes skin cancer Excessive exposure to ultraviolet (UV) radiation can cause health problems. Skin can burn, age prematurely and the risk of skin cancer is increased. UV radiation can also damage the eyes. UV radiation also ...https://stuk.fi/en/ultraviolet-radiation-causes-skin-cancer
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Analysis of minor radiation safety deviations In 2024, the Radiation and Nuclear Safety Authority received slightly over 2,000 notifications from health care units conducting X-ray examinations concerning cases in which the use of radiation in X-r...https://stuk.fi/en/analysis-of-minor-deviations