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Radiation and Nuclear Safety Authority in 2023 Valitse kieli Suomi Välj språket Svenska Select language English Director General’s review STUK monitors around the clock Decommissioning of Finland’s first nuclear reactor started STUK prepares for t...https://stuk.fi/en/year-2023-in-STUK
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Radiation and Nuclear safety Authority of Finland Radiation and Nuclear Safety Authority’s (STUK) key task is to supervise the use of radiation and nuclear energy in Finland. STUK oversees that all operators comply with the common rules. Our field...https://stuk.fi/en/get-to-know-stuk
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The human body always contains radioactive substances Our environment contains radioactive substances of both natural and artificial origin. They enter the human body in food, drinking water or inhaled air. In the body, radioactive substances expo...https://stuk.fi/en/radioactivity-in-human-body
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Radiation dose received from food Man-made radioactivity in food is monitored by collecting daily portions of solid food from institutional kitchens in three different locations over a period of one week. Drinks are collected for one day only. The...https://stuk.fi/en/daily-food-and-drink
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Cookies on the website The Stuk.fi website uses cookies that enable the compilation of the statistics of visitors to our website and the quality assurance of our website. Our website also contains cookies that are necessary for its technical opera...https://stuk.fi/en/cookies-on-website
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Dental X-ray practices The purpose of this guideline is to facilitate the interpretation of radiation legislation and, thereby, to promote radiation safety in practice. This guideline is not binding as such, but they reflect STUK's view on how the...https://stuk.fi/en/dental-x-ray-practices
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Indoor air alpha track radon detector measurements Radon is an odourless and invisible radioactive gas that can be present in indoor air. Long-term exposure to high radon levels considerably increases the risk of lung cancer. Radon is undetectable...https://stuk.fi/en/indoor-air-radon-measurements
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Nuclear power plant accidents around the world A reactor at the Chernobyl nuclear power plant in the Soviet Union (present Ukraine) was destroyed in an explosive manner in 1986. The complete destruction of the reactor caused a massive release of r...https://stuk.fi/en/nuclear-power-plant-accidents
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Loviisa nuclear power plant The two nuclear power plant units located in Hästholmen, Loviisa, are owned by Fortum Power and Heat Oy. Loviisa 1 was taken into commercial use in 1977 and Loviisa 2 in 1981. In terms of its type, the Loviisa facility ...https://stuk.fi/en/loviisa-nuclear-power-plant
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Radon causes lung cancer Radon is a colourless and odourless noble gas that is present in the soil and can penetrate the indoor air of buildings. Long-term exposure to high radon levels increases the risk of lung cancer. Radon exposure is estimate...https://stuk.fi/en/radon-causes-lung-cancer
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Valitse kieli Suomi Välj språket Svenska Select language English Director General’s review For the Radiation and Nuclear Safety Authority (STUK), 2024 was a year of significant development and change. In addition to basic radiation and nuclear saf...https://stuk.fi/en/director-general-s-review-2024
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Nuclear waste management In Finland, nuclear waste is accumulated in the nuclear power plants in Loviisa and Olkiluoto and in the research reactor located in Otaniemi. According to the law, this waste must be managed in Finland, up to and includin...https://stuk.fi/en/nuclear-waste-management
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Measurement of radioactivity in samples Determinations of the radioactivity of the samples are offered e.g. for tritium, strontium, plutonium and americium, uranium, lead and polonium, as well as radon and long-lived alpha-active substances. In ad...https://stuk.fi/en/measurement-for-radioactivity-in-samples
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Use of radiation in medicine Since the use of radiation may cause harm in addition to benefits, physicians must consider the necessity of radiological examinations, interventional procedures or radiotherapy on a case-by-case basis. These considera...https://stuk.fi/en/use-of-radiation-in-medicine
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Valitse kieli Suomi Välj språket Svenska Select language English STUK monitors around the clock The Radiation and Nuclear Safety Authority (STUK) maintains continuous preparedness. The system is spearheaded by the expert on call, who generally rec...https://stuk.fi/en/stuk-monitors-around-the-clock
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STUK's regulatory guides The Radiation and Nuclear Safety Authority publishes regulations and guides describing the level of requirements for radiation and nuclear safety supervision. STUK's regulatory guides Regulatory Guides on nuclear safety (Y...https://stuk.fi/en/stuks-regulatory-guides-and-decisions
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STUK's radon monitoring projects at workplaces The Radiation and Nuclear Safety Authority (STUK) monitors radon concentrations at workplaces and radon exposure of workers in Finland. The monitoring is mainly carried out by the employer measuring t...https://stuk.fi/en/stuks-monitoring-projects-at-workplaces
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Information on nuclear power plants A nuclear power plant is a thermal power plant designed to produce electricity, where heat is generated by the fission reaction of uranium atoms in the reactor instead of by the combustion of conventional fuel. ...https://stuk.fi/en/nuclear-power-plants
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Working at STUK We employ over 300 people. We are experts in many different fields, but we all work together to achieve the shared goal – radiation safety. The purpose of all our activities is to protect people, society, the environment and future...https://stuk.fi/en/stuk-as-a-workplace
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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