What is the annual general public dose limit?

What is the annual general public dose limit?

• A. 100 mrem/yr
• B. 2 mrem/hour
• C. 50 mrem/yr
• D. 500 mrem/yr

Answer: (A)

The main idea is the maximum dose a member of the public should receive from radiation in one year. For the general public, that limit is 100 mrem per year (which is 1 mSv per year). This keeps non‑workers protected from cumulative exposure. Why this is the best choice: 100 mrem/yr is a total annual dose limit, not a rate. The option 2 mrem/hour is a dose rate, not an annual total, and if someone were exposed at that rate for a year it would far exceed the annual public limit. The other two values are either below (50 mrem/yr) or above (500 mrem/yr) the standard limit, so they aren’t the correct general public annual cap.

The main idea is the maximum dose a member of the public should receive from radiation in one year. For the general public, that limit is 100 mrem per year (which is 1 mSv per year). This keeps non‑workers protected from cumulative exposure.

Why this is the best choice: 100 mrem/yr is a total annual dose limit, not a rate. The option 2 mrem/hour is a dose rate, not an annual total, and if someone were exposed at that rate for a year it would far exceed the annual public limit. The other two values are either below (50 mrem/yr) or above (500 mrem/yr) the standard limit, so they aren’t the correct general public annual cap.