Section 4: Risk assessment

The employer shall assess the risks resulting from the exposure of workers to ionising radiation by seeking the assistance of the employee referred to in I of Article L. 4644-1 or, if he has already appointed one, of the radiation protection advisor. The main purpose of this assessment is: 1° To identify which of the exposure limit values laid down in articles R. 4451-6, R. 4451-7 and R. 4451-8 are…

When carrying out the risk assessment, the employer shall in particular take into consideration: 1° The inventory of ionising radiation sources provided for in Article R. 1333-158 of the Public Health Code; 2° The nature of the sources of ionising radiation, the type of radiation as well as the level and duration of exposure and, where applicable, the methods of dispersion and incorporation of radionuclides; 3° Information on emission levels…

I.-The employer shall carry out measurements in the workplace when the results of the risk assessment show that exposure is likely to reach or exceed one of the following levels: 1° For the whole body: 1 millisievert per year; 2° For the crystalline lens: 15 millisieverts per year; 3° For the extremities and skin: 50 millisieverts per year; 4° For the radon activity concentration in the air for the occupational…

The results of the risk assessment are recorded in the single risk assessment document provided for in Article R. 4121-1. The results of the assessment and measurements provided for in article R. 4451-15 are kept in a form which allows them to be consulted for a period of at least ten years.

I.-The employer shall communicate the results of the risk assessment and measurements to the health professionals mentioned in the first paragraph of Article L. 4624-1 and to the Social and Economic Committee, in particular when they are updated under Article R. 4121-2. II – When, despite the preventive measures implemented in application of section 5 of this chapter, the concentration of radon activity in the air remains above the reference…