Which item is a consumer safety device that contains a radioactive source and is often transported under hazmat rules?

Which item is a consumer safety device that contains a radioactive source and is often transported under hazmat rules?

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

Answer: (D)

Some everyday safety devices include tiny sealed radioactive sources, which is why they’re controlled under hazmat transport rules. A smoke detector is a prime example: it contains a small amount of americium-241 inside a sealed chamber to ionize the air and help sense smoke. Because that radioactive source is present, the device is treated as radioactive material for shipping, even though the amount is very small and contained. This keeps transport crews aware of the source and ensures proper packaging and handling. The other items listed aren’t consumer safety devices that include a radioactive source. High level radiation isn’t a device people use at home. Natural uranium and plutonium are nuclear materials used in industrial or nuclear contexts, not in consumer safety devices. So the correct choice is smoke detectors.

Some everyday safety devices include tiny sealed radioactive sources, which is why they’re controlled under hazmat transport rules. A smoke detector is a prime example: it contains a small amount of americium-241 inside a sealed chamber to ionize the air and help sense smoke.

Because that radioactive source is present, the device is treated as radioactive material for shipping, even though the amount is very small and contained. This keeps transport crews aware of the source and ensures proper packaging and handling.

The other items listed aren’t consumer safety devices that include a radioactive source. High level radiation isn’t a device people use at home. Natural uranium and plutonium are nuclear materials used in industrial or nuclear contexts, not in consumer safety devices.

So the correct choice is smoke detectors.