What is the annual effective dose limit for a whole body non-pregnant worker over the age of 18?

The annual effective dose limit for a whole body non-pregnant worker over the age of 18 is set at 50 mSv. This limit is established by regulatory agencies, such as the International Commission on Radiological Protection (ICRP) and the United States Nuclear Regulatory Commission (NRC), to ensure the safety of workers who are potentially exposed to ionizing radiation in the course of their duties.

This limit is designed to allow for the necessary occupational exposure that may occur in fields such as radiology, nuclear medicine, and radiation therapy while maintaining a commitment to minimizing health risks. The threshold takes into consideration both the risks associated with radiation exposure and the benefits of performing essential tasks that require such exposure.

For clarity, other dose limits set by regulatory bodies serve specific populations or situations. For instance, the limits for public exposure or for pregnant workers tend to be more restrictive to safeguard vulnerable individuals. Overall, the 50 mSv limit reflects a balance between occupational necessity and safety in exposure to radiation.