Marking of an area with radiological contamination indicates the ________ of a radiological hazard.

Marking an area with radiological contamination primarily indicates the presence of a radiological hazard. This action serves as a clear visual signal that there is a risk of exposure within the marked zone. The marking alerts personnel and the public to the potential danger posed by radiation, enabling them to take appropriate precautions and avoid the contaminated area.

While determining the magnitude, severity, or duration of the hazard can be part of the overall assessment during a radiological event, the act of marking specifically denotes that contamination is present, prompting immediate attention to safety measures.