Which color identifies radioactive materials on placards?

The correct choice is yellow, which is used on placards to identify radioactive materials. This color coding helps emergency responders quickly recognize the type of hazard they might encounter in the event of an incident involving hazardous materials.

Yellow is associated with radioactive materials because it stands out in various environments, allowing for immediate visual identification. The use of specific colors on placards is part of a standardized system to promote safety and enhance the effectiveness of emergency response. This system aligns with guidelines provided by regulatory organizations to ensure that responders are aware of the potential dangers associated with the materials they are dealing with, ultimately protecting both responders and the public from exposure to radiation.

Understanding the significance of this color in the context of hazardous materials is crucial for those working in or responding to hazmat situations, as it facilitates a faster and safer approach to handling these potentially dangerous substances.