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Radiation and Nuclear Safety Authority of Finland

The Radiation and Nuclear Safety Authority is an independent authority and expert organization supervising and contributing to radiation safety and the safe use of nuclear energy in Finland.

Current issue

The Finnish company Steady Energy is developing its own small nuclear power plant, which it is marketing as a source of district heating for cities. The Radiation and Nuclear Safety Authority (STUK) has reviewed the plant description and evaluated its safety using the model proposed in the new nu...

Radiation today

0.166 µSv/h
0.00 - 0.10 µSv/h
0.10 - 0.20 µSv/h
0.20 - 0.30 µSv/h
0.30 - 0.40 µSv/h
0.40 - µSv/h

Press releases and news

The Finnish company Steady Energy is developing its own small nuclear power plant, which it is marketing as a source of district heating for cities. The Radiation and Nuclear Safety Authority (STUK) has reviewed the plant description and evaluated its safety using the model proposed in the new nu...

From July until the end of November, the Radiation and Nuclear Safety Authority will organise the Mushrooms 2025 campaign, the aim of which is to examine radioactive cesium (Cs-137) concentrations and differences in concentrations in edible mushroom species in different parts of t...

On Sunday morning, the United States launched strikes on three nuclear facilities in Iran: Fordow, Isfahan, and Natanz. According to information relayed by the International Atomic Energy Agency (IAEA), radiation levels around the facilities have not increased. The Agency continues to monitor the situation.