What is the occupational radiation limit for adults?

• A. 5 rem (0.05 Sv)
• B. 0.5 rem
• C. 5 Sv
• D. 50 rem

Answer: (A)

Understanding how much radiation a worker can receive in a year helps protect health over a lifetime while still allowing necessary imaging tasks. For adults performing dental radiography, there is a standard annual limit placed on whole‑body exposure to keep cancer risk low but not rule out the ability to work. This limit represents the regulatory protection level for occupational exposure and is intentionally set to balance safety with practical duties.

The other options either imply too small a cap for routine occupational work or refer to different scenarios (non-occupational exposure or non–whole-body limits) that don’t match the standard adult occupational limit used in dental radiography safety. That standard annual limit is the one designed for workers, ensuring safety while permitting essential imaging.