What is the dose limit for an occupationally exposed fetus after one month?

The correct dose limit for an occupationally exposed fetus after one month of pregnancy is set at 0.5 mSv, which is equivalent to 0.05 rem. This limit is established to protect the developing fetus from potentially harmful effects of radiation exposure during a sensitive period of development.

These guidelines reflect an understanding that the fetus is particularly vulnerable to radiation, especially in the early stages of pregnancy, when the organs are developing. To ensure safety, regulatory agencies prescribe stringent dose limits to minimize any risk of developmental abnormalities or other effects that could result from radiation exposure.

It's important to recognize that while there are different dose metrics (such as rem and mSv), they are often interconvertible depending on the context and the specific limits set by various health and safety organizations. In this case, the recommended dose is explicitly 0.5 mSv, reinforcing the fetal protection policy in occupational settings.