Legal analysis: Radiation accidents can be categorized as particularly significant radiation accidents, significant radiation accidents, large radiation accidents, and general radiation accidents. Grading is based on specific circumstances.
1. Particularly significant radiation accidents, refers to the loss, theft, loss of control of a class I, class II radioactive sources caused by a wide range of serious radiation contamination consequences, or loss of control of radioisotopes and radiation devices leading to more than three people (including three people) acute death.
2. Major radiation accidents, refers to the loss, theft, loss of control of a class, two types of radioactive sources, or radioisotopes and radiation devices out of control resulting in acute death of less than 2 people (including 2 people) or more than 10 people (including 10 people) acute severe radiation sickness, local organ disability.
3. Larger radiation accidents, refers to the three types of radioactive sources lost, stolen, out of control, or radioisotopes and radiation devices out of control resulting in acute severe radiation sickness, local organ disability of less than 9 people (including 9 people).
4. General radiation accidents are defined as the loss, theft, or loss of control of radioactive sources of four or five categories, or loss of control of radioisotopes and radiation devices resulting in the exposure of persons to radiation that exceeds the annual dose limit.
Legal basis: "Regulations on the Safety and Protection of Radioisotopes and Radiation Devices" (State Council Decree No. 449) Article 40 According to the nature of radiation accidents, the severity, controllability and the scope of the impact of the accident and other factors, from the heaviest to the lightest will be divided into four levels of radiation accidents, particularly significant radiation accidents, significant radiation accidents, large radiation accidents and general radiation accidents.