How big is the threat of radiation from nuclear power plants to human body?

Working in a nuclear power plant has a certain chance of exposure to radiation, which is called taking dose in the industry, but it is within the tolerance range of the human body, so it is risky but not harmful.

The state has strict management over radiation workers: they must undergo training and evidence collection, wear dose films, check dose films regularly, have annual physical examination and register for supervision and management.

The average annual effective dose of radioactive workers should not exceed 20 milliSewart/year. Male is 1mSv/ year.

Nuclear reactors are protected layer by layer, and remote operation through full digital control will not cause radiation damage to staff;

The radiation monitoring of the peripheral part of the nuclear power plant is implemented by the Ministry of Environmental Protection, and online continuous monitoring is adopted. If there is any abnormality, an alarm will be triggered.

The nuclear power plant is mainly responsible for configuring monitoring equipment for radiation monitoring inside and around the nuclear power plant. Due to the strict monitoring network and emergency system, once an abnormal situation occurs, dose data will be obtained at the first time, and emergency response linkage will be carried out according to the event level;

Workers who have obtained the Radiation Worker's Certificate have professional protection knowledge. As long as they operate in strict accordance with the regulations, there is no health threat.

Refer to the annual per capita dose data of main workers in Daya Bay Nuclear Power Station in 2002:

In 2002 (mSv/ year), there were 0.34 operators, 0.42 service personnel, 0.4 instrument personnel, 0.07 electrical personnel, 0.02 electrical personnel, 1930, of which 99.9% were less than 5mSv/ year, and 1 person was present.

It can be seen that as long as the procedures are strictly followed, the radiation damage of nuclear power plant workers is very small and can be ignored.