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Olyckan vid kärnkraftverket i Fukushima Kärnkraftverket Dai-ichi i Fukushima på Japans östkust skadades allvarligt den 11 mars 2011 och i flera dagars tid spreds radioaktiva ämnen i havet och närområdet runtom kraftverket. Skadan skedde till följd...https://stuk.fi/sv/olyckan-vid-karnkraftverket-i-fukushima
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Strålningsmätningar och godkännanden Strålning mäts av många olika orsaker, och det finns olika slags mätare i bruk. För alla mätningar är det viktigt att använda rätt mätinstrument och säkerställa att mätaren är i skick och kalibrerad. Mätresulta...https://stuk.fi/sv/stralningsmatningar-och-godkannanden
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Olkiluoto nuclear power plant The three nuclear power plant units located in Olkiluoto, Eurajoki, are owned by Teollisuuden Voima Oyj (TVO). Olkiluoto 1 was taken into commercial use in 1979 and Olkiluoto 2 in 1982. In terms of its type, the Olkil...https://stuk.fi/en/olkiluoto-nuclear-power-plant
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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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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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Operation of a nuclear power plant A nuclear power plant is a thermal power plant in which water vapour drives a turbine and an electrical generator connected to it. In a nuclear power plant, the thermal energy needed to steam water is generated b...https://stuk.fi/en/operation-of-a-nuclear-power-plant
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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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Types of nuclear power plants Over the past decades, a wide range of different types of nuclear power plants have been designed and built around the world, but only a few have reached large-scale commercial operation. The most common reactor types...https://stuk.fi/en/types-of-nuclear-power-plants
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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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Hanhikivi nuclear power plant project The Hanhikivi 1 project was a nuclear power plant commissioned by the Finnish energy company Fennovoima to be built on the Hanhikivi peninsula in the municipality of Pyhäjoki. If realised, Hanhikivi 1 would ha...https://stuk.fi/en/hanhikivi-nuclear-power-plant-project
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Chernobyl nuclear power plant accident On 26 April 1986, a nuclear power plant accident occurred in Chernobyl, present Ukraine. The accident contaminated large areas in Ukraine, Belarus, and Russia with various radioactive substances. People and s...https://stuk.fi/en/chernobyl-nuclear-power-plant-accident
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Reporting on nuclear safety Valitse kieli Suomi Välj språket Svenska Select language English Inspections at the Loviisa nuclear power plant STUK carries out inspections to oversee the operation and use of the Loviisa nuclear power plant. The perio...https://stuk.fi/en/inspections-at-the-loviisa-nuclear-power-plant
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Reporting on nuclear safety Valitse kieli Suomi Välj språket Svenska Select language English Inspections at the Olkiluoto nuclear power plant STUK carries out inspections to oversee the operation and use of the Olkiluoto nuclear power plant. The p...https://stuk.fi/en/inspections-at-the-olkiluoto-nuclear-power-plant
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STUK career stories: Elina works as a local inspector at the Olkiluoto nuclear power plant I am Elina and I work as STUK’s local inspector at the Olkiluoto nuclear power plant in Eurajoki. In terms of my training, I have an MSE in material technol...https://stuk.fi/en/stuk-career-stories-elina-works-as-a-local-inspector-at-the-olkiluoto-nuclear-power-plant
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Nuclear weapons A nuclear weapon is a bomb whose destructive power is mainly based on the pressure wave and thermal radiation created by the explosion. Another threat is radiation from both radioactive substances released by the explosion and neut...https://stuk.fi/en/nuclear-weapons
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5.3.2026 | -https://stuk.fi/en/-/espoo-s-nuclear-reactor-is-now-decommissioned-and-the-site-has-been-cleaned-of-radioactivity
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Nuclear material Nuclear materials refers to nuclear materials, which include uranium, plutonium and thorium, as well as other nuclear materials, equipment, installations, data materials and agreements, if they are relevant in terms of the spread ...https://stuk.fi/en/nuclear-materials
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Nuclear safety STUK supervises nuclear safety in Finland. The license holder is responsible for the safety of nuclear energy use, but STUK sets the safety requirements and oversees their compliance. STUK's supervision includes nuclear facilities, ...https://stuk.fi/en/nuclear-safety
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Information on nuclear waste Radioactive waste means a material, item or structure that contains radioactive substances, has no use and which, due to its radioactivity, must be rendered harmless. Typically, radioactive waste cannot be disposed of;...https://stuk.fi/en/information-on-nuclear-waste
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Reporting on nuclear safety Valitse kieli Suomi Välj språket Svenska Select language English In this section, we report on the regulatory oversight of nuclear safety and security carried out by the Radiation and Nuclear Safety Authority (STUK) and...https://stuk.fi/en/reporting-on-nuclear-safety