What is required for members of the public in relation to radiation from nuclear gauges?

The requirement that exposure to radiation from nuclear gauges for members of the public should not exceed 100 mrem per year is based on regulatory guidelines established to protect public health and safety. This limit is set to minimize the risk of harmful health effects associated with radiation exposure. By adhering to this threshold, it ensures that individuals in the vicinity of nuclear gauges are not exposed to levels of radiation that could significantly increase their risk of cancer or other radiation-induced conditions.

In contrast, allowing unlimited radiation exposure, restricting access to all areas where gauges are used, or continuously monitoring exposure for the public would either be impractical or overly stringent for everyday scenarios. The focus is on establishing a safe limit that balances the deployment of nuclear gauges in various industries with the health and safety of the public.