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RADIATION WORK

The Finnish Radiation Act and Radiation Decree set maximum radiation limits for persons who are exposed to radiation in their work.

The maximum allowed five-year radiation dose for a radiation worker is 100 mSv. The radiation dose for a single year may not exceed 50 mSv.

Employees working in the controlled area of a nuclear power plant are classified into radiation work categories A and B. Health monitoring based on the classification ensures that the health status of the employee allows the performance of the appointed tasks.

Category A includes radiation workers who work in facilities in which the annual radiation dose may rise to more than 6 mSv, and radiation workers who need to use heavy protective clothing (additional protective suit, respirator). Most of the employees belong to category B.

During pregnancy, a radiation worker’s work must be arranged so that the equivalent dose for the fetus remains as low as reasonably possible. The dose for the remaining pregnancy may not exceed 1 mSv. During pregnancy, an employee cannot assume the tasks of a category A worker.