Which zone has the highest risk of contamination due to radioactive systems?

Zone 3 is identified as having the highest risk of contamination due to radioactive systems. This zone typically encompasses areas where radioactive materials are stored, handled, or processed, leading to a greater likelihood of accidental spills or exposure. The designation of Zone 3 signifies that stringent safety measures are often needed to limit exposure and control contamination. This may involve more rigorous monitoring protocols, containment practices, and protective equipment for personnel working in or near this zone.

In contrast, other zones generally categorize areas with lower risks or different functions related to radioactive systems, making them less critical from a contamination standpoint. Thus, Zone 3's designation reflects its significance in terms of safety and contamination risk management within environments dealing with radioactive materials.