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 operations.

Current issues

According to a report by the Radiation and Nuclear Safety Authority, radon concentrations may vary significantly between the dwellings within the same housing company. Radon concentration does not remain constant even in an individual dwelling. Radon prevention in the construction phase of new...

The Radiation and Nuclear Safety Authority is involved in cooperation where the safety of a small modular reactor (SMR) in planning phase is assessed by the nuclear safety authorities of different countries. The final report of the project has just been published. The cooperation also provided Finns with tools f...