What is the NCRP recommended annual dose limit for the skin and extremities of a radiation worker?

The NCRP, or National Council on Radiation Protection and Measurements, recommends an annual dose limit for the skin and extremities of radiation workers to be 500 millisieverts (mSv). This limit is established to ensure that workers are protected from excessive exposure to radiation, which can lead to acute health effects and long-term risks such as cancer.

This recommended dose is significantly above limits set for other parts of the body—such as the whole body or organs like the eyes—reflecting the tolerable risk for localized exposure over time while still emphasizing the need for adequate protective measures. It's crucial for radiation workers to understand these limits to safely manage their exposure in environments where radiation is a concern.