When posting a High Radiation Area, the radiation dose rate must be at least?

The correct threshold for posting a High Radiation Area is based on established safety standards and regulations. A High Radiation Area is defined as an area where an individual could receive a dose rate of 100 mrem/hr (1 mSv/hr) or more. This measurement is crucial because it serves as a guideline to protect individuals from potential overexposure to radiation.

When radiation levels exceed this threshold, signs must be posted to inform employees and the public, ensuring that proper precautions are taken to mitigate exposure. The designation of a High Radiation Area emphasizes the necessity for monitoring and controlling access, ultimately enhancing safety protocols in environments where radiation may be present.

Understanding this threshold helps individuals working in radiological contexts recognize the importance of adhering to regulatory standards to maintain a safe working environment and protect health.