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Contact us: Radiation and Nuclear Safety Authority of Finland Jokiniemenkuja 1, 01370 Vantaa Finland Switch board: +358 9 759 881 e-mail: [email protected] How to reach us Contact our experts For contacting our experts and giving feedback on our a...https://stuk.fi/yhteystiedot
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MELODI workshop on medical radiation, October 27─28, 2025 MELODI workshop on medical radiation, October 27─28, 2025 has been cancelled. The workshop will be postponed until 2026. A new date is being sought. A Multidisciplinary European Low Dose In...https://stuk.fi/en/melodi2025
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Laser performances A permit from the Radiation and Nuclear Safety Authority (STUK) is required for the use of a powerful laser device. The use of a powerful laser device (laser classes 3B and 4) as a lighting effect, in an advertisement, in an art...https://stuk.fi/en/laser-performances
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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 nu...https://stuk.fi/en/contact-us
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4.6.2026 | -https://stuk.fi/en/-/radiation-doses-of-radiation-workers-were-moderate-in-2025
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30.1.2026 | -https://stuk.fi/en/-/small-amounts-of-radioactive-substances-in-outdoor-air
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6.5.2026 | At this time of the year, the midday sun can already cause burns in people with sensitive skin. According to a recent study, young people like sunbathing and tanning, even though they are also concerned about the health hazards of UV radiation and the risk of skin cancer.https://stuk.fi/en/-/know-the-uv-index-to-avoid-sunburn-
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Sunbeds The most dangerous devices in the home and in beauty care in terms of radiation are sunbeds for tanning the skin. They produce ultraviolet (UV) radiation with which it is possible to tan, and in the worst case, burn skin. A permanent tan a...https://stuk.fi/en/sunbeds
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Ultrasound Ultrasound refers to mechanical waves with frequencies higher than the upper audible limit of human hearing (more than 20 kilohertz). Ultrasound always requires a medium, such as air, liquid, solid or human tissue, to propagate, using p...https://stuk.fi/en/ultrasound
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Aviation In aviation, employees are exposed to cosmic radiation. Cosmic radiation is particle radiation emitted by the sun or from space. If it is possible that the effective dose of cosmic radiation to the aircrew may exceed 1 millisievert (mSv) ...https://stuk.fi/en/aviation
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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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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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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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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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STUK heading an EU project that improves radiation safety in x-ray imaging | Säteilyturvakeskus STUK
20.5.2026 | -https://stuk.fi/en/-/stuk-heading-an-eu-project-that-improves-radiation-safety-in-x-ray-imaging -
Construction of a nuclear facility Following the decision-in-principle, the party in charge of the project must apply for and be granted the Government’s licence to construct the nuclear facility. In connection with the construction licence, the a...https://stuk.fi/en/construction
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Base stations Operation and placement of base stations Data communication between the mobile phone and the base station is carried out using radio waves. The call or other information is transmitted from the mobile phone as a radio wave to the nea...https://stuk.fi/en/base-stations
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Radon mitigation Radon mitigation can easily reduce radon concentration in indoor air. The most effective mitigation methods are sub-slab suction and a radon well. Before starting the mitigation, it is important to check that the ventilation is wo...https://stuk.fi/en/radon-mitigation
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Current issues We are publishing press releases and news articles on topical radiation and nuclear safety issues on this section of our website. Press releases RSS (Opens New Window) (Opens New Window) 4.6.2026 Press release Radiation doses of rad...https://stuk.fi/en/current-issues