Under which condition is the 24-hour notification to the Radiological Health Branch required?

The requirement for a 24-hour notification to the Radiological Health Branch arises when there are significant radiological exposure levels that must be reported for monitoring and regulatory compliance.

When the total effective dose exceeds 5 rems, it indicates a potentially hazardous level of exposure, necessitating notification to ensure that appropriate actions can be taken to protect health and safety. Similarly, if the eye dose equivalent surpasses 15 rems, it reflects a risk of damage or adverse health effects that necessitate immediate attention. Additionally, when the shallow dose to the skin exceeds 50 rems, it presents a risk that could result in tissue damage or radiation burns, making reporting essential.

Thus, the requirement for 24-hour notification does indeed apply to all the specified conditions, as they each pertain to critical thresholds for radiation exposure that warrant prompt communication with regulatory authorities for the safety and oversight of radiological practices. Reporting in these scenarios helps ensure proper monitoring and response measures can be implemented to protect personnel and the public from radiation risks.