Which substance is a man-made element with significant radiological hazards and heavy security controls in transport?

Which substance is a man-made element with significant radiological hazards and heavy security controls in transport?

• A. Smoke Detectors
• B. High Level Radiation
• C. Plutonium
• D. Natural Uranium

Answer: (C)

Plutonium fits this description because it is a man-made element produced in nuclear reactors and it carries very significant radiological hazards. It emits alpha radiation and is chemically toxic, so handling and transporting it requires strict packaging, labeling, and security measures to prevent theft or misuse. The combination of being man-made, highly radiotoxic, and tightly regulated in transit makes plutonium the substance described. Natural uranium, by contrast, occurs in nature and is not man-made, so it doesn’t fit. High level radiation describes a hazard level, not a substance. Smoke detectors can contain americium-241, a man-made isotope, but the amounts are small and they do not drive the same heavy security controls in transport as plutonium.

Plutonium fits this description because it is a man-made element produced in nuclear reactors and it carries very significant radiological hazards. It emits alpha radiation and is chemically toxic, so handling and transporting it requires strict packaging, labeling, and security measures to prevent theft or misuse. The combination of being man-made, highly radiotoxic, and tightly regulated in transit makes plutonium the substance described.

Natural uranium, by contrast, occurs in nature and is not man-made, so it doesn’t fit. High level radiation describes a hazard level, not a substance. Smoke detectors can contain americium-241, a man-made isotope, but the amounts are small and they do not drive the same heavy security controls in transport as plutonium.