What is the lifetime cumulative effective dose limit for a 35-year-old radiation worker?

• A. 250 mSv
• B. 300 mSv
• C. 350 mSv
• D. 400 mSv

Answer: (C)

The lifetime cumulative effective dose limit for a radiation worker is calculated using the formula: age in years multiplied by 10 mSv. For a 35-year-old radiation worker, this calculation would be 35 years × 10 mSv/year, resulting in a limit of 350 mSv.

This standard is established to help protect radiation workers from the potential harmful effects of long-term exposure to ionizing radiation. By setting these cumulative limits, regulatory agencies can monitor and manage exposure, ensuring that workers maintain their health over the course of their careers. Higher limits, such as those in the other provided options, would not align with the guidelines that safeguard against increased risks of radiation-induced conditions.