Radioactive Symbol - International Ionizing Radiation Warning Sign #228539 (License: Personal Use)

This black-and-white trefoil symbol, consisting of three curved blades radiating from a central circle within a circle, is the internationally standardized warning for ionizing radiation. Adopted by the IAEA and ISO, it signifies potential exposure to harmful radiation and is used on containers, equipment, and facilities handling radioactive materials. Its high-contrast design ensures visibility and immediate recognition even under poor lighting or from a distance.

Used on signage, packaging, and safety documentation in nuclear facilities, medical imaging departments, research labs, and transport of radioactive substances; matches user intent for safety education, regulatory compliance, or hazard identification.