Annual dose limit for the general public?

Annual dose limit for the general public?

• A. 0.01 rem
• B. 1 rem
• C. 0.5 rem
• D. 0.1 rem

Answer: (D)

The main idea is the regulatory limits that protect people who are not trained radiation workers. The annual dose limit for the general public is 0.1 rem (which is about 1 millisievert). This keeps exposure from all sources low over a year, reflecting the goal of minimizing lifetime cancer risk from radiation. Understanding the other options helps see why this one fits. 0.01 rem is far below typical real-world exposure limits and isn’t the standard public limit. 0.5 rem is more like an occupational exposure level—what a trained worker might be allowed to receive under supervision, not what the general public is restricted to. 1 rem is higher than the public limit and would exceed what nonworkers are allowed to receive in a year. So, 0.1 rem per year is the established limit for the general public.

The main idea is the regulatory limits that protect people who are not trained radiation workers. The annual dose limit for the general public is 0.1 rem (which is about 1 millisievert). This keeps exposure from all sources low over a year, reflecting the goal of minimizing lifetime cancer risk from radiation.

Understanding the other options helps see why this one fits. 0.01 rem is far below typical real-world exposure limits and isn’t the standard public limit. 0.5 rem is more like an occupational exposure level—what a trained worker might be allowed to receive under supervision, not what the general public is restricted to. 1 rem is higher than the public limit and would exceed what nonworkers are allowed to receive in a year.

So, 0.1 rem per year is the established limit for the general public.