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Alara magazine Alara magazine, published by the Radiation and Nuclear Safety Authority of Finland (STUK), was in circulation from 1992 to 2012. It covered topical issues related to the use of radiation, radiation safety, and nuclear safety. The ma...https://stuk.fi/en/alara-magazine
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The content of this page is available in Finnish and Swedish. If you have any inquiries please contact us at [email protected] . Hiddenhttps://stuk.fi/en/warning-signs
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Accessibility statement This accessibility statement applies to the website stuk.fi, which was introduced on 24 May 2023. The website is incomplete. If necessary, the description will be revised as new content and functionalities are added to the ...https://stuk.fi/en/accessibility-statement
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About STUK The purpose of the Radiation and Nuclear Safety Authority’s (STUK) operations is to protect people, society, the environment and future generations from the harmful effects of radiation. In this section, you can read about STUK’s operat...https://stuk.fi/en/about-stuk
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Annual reviews On this page you will find our annual review, where we have compiled the most important events and activities of each year. Year 2024 in STUK Year 2023 in STUK Year 2022 in STUK Our financial statements and activity reports (PDF) ar...https://stuk.fi/en/annual-reviews
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Radon in Finland Radon is a colourless and odourless noble gas that is present in the indoor air in buildings. Radon prevention in the construction phase is easier and less expensive than implementing mitigation measures afterwards. Radon-bearing ...https://stuk.fi/en/radon-in-finland
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Finns are protected Finland has made preparations for radiation hazard situations in many ways, even though the likelihood of a serious radiation hazard situation is small. The radiation situation is constantly monitored throughout the country, an...https://stuk.fi/en/finns-are-protected
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Planning and monitoring The content of this page is provided by the Radiation and Nuclear Safety Authority (STUK). The page contains brief information about the planning and monitoring activities and financial figures. The related documentation is...https://stuk.fi/en/planning-and-monitoring
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Radiation in dailylife In the everyday environment, Finns suffer the most health damage from natural radiation - radon at workplaces, at home and in leisure apartments, and from UV radiation, which must be protected from with clothes, shade and cr...https://stuk.fi/en/radiation-in-dailylife
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Mushrooms 2025 campaign From July to November 2025, the Radiation and Nuclear Safety Authority (STUK) carried out an extensive measurement campaign on edible mushrooms. The aim of the campaign was to determine the activity concentrations of radioa...https://stuk.fi/en/mushrooms-2025-campaign
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Valitse kieli Suomi Välj språket Svenska Select language English Director General’s review For STUK, 2022 was a year of major planned and unplanned changes. Russia's invasion of Ukraine in February changed the daily schedule of many STUK employees...https://stuk.fi/en/director-general-s-review
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STUK online Find us on social media: Facebook: facebook.com/sateilyturvakeskus Instagram: instagram.com/stuk_fi/ Threads: stuk_fi LinkedIn: linkedin.com/company/stuk YouTube: youtube.com/user/sateilyturvakeskus Hiddenhttps://stuk.fi/en/social-media
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Strategy As climate change, the energy transition, inequality and the tightened global security situation reshape and challenge societies, we must better understand how and in what ways the use of radiation and nuclear energy affects them. We need...https://stuk.fi/en/strategy
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Publications STUK's publications are available in Julkari, the joint open-access publication archive of the Ministry of Social Affairs and Health. STUK's own serial publications and brochures are published there in full, in PDF format. STUK also p...https://stuk.fi/en/publications
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Decommissioning of a nuclear facility When a nuclear facility reaches the end of its service life, measures to decommission the facility are initiated. The measures are aimed at cleaning the nuclear power plant structures and systems of radioactiv...https://stuk.fi/en/decommissioning
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Hiddenhttps://stuk.fi/en/newsletter
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Radon at workplaces The employer is responsible for radon safety in the workplace, as for other occupational safety issues. The employer is responsible for radon measurements at the workplace, even if the workplace operates in rented premises. Rad...https://stuk.fi/en/radon-at-workplace
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Sources of radon The pore air in the soil always contains high levels of radon. Radon-bearing air from the soil seeps into the building through openings and gaps in the base floor, due to underpressure in the building. This underpressure is caused...https://stuk.fi/en/sources-of-radon
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What is radiation? Radiation is a natural part of our living environment. There are two types of radiation - ionising and non-ionising. On the other hand, radiation can be either electromagnetic waves or particle radiation. Ionising radiation has ...https://stuk.fi/en/what-is-radiation
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Radiation situation in Ukraine The war in Ukraine does not affect the radiation situation in Finland. Nor can any accident or damage related to radioactive materials or nuclear power plants in Ukraine cause a situation in which people in Finland n...https://stuk.fi/en/situation-in-ukraine