Radioactive Warning Symbol - Universal Hazard Sign for Ionizing Radiation #191498 (License: Personal Use)

This image shows the standard ISO 361 radiation warning symbol: a bright yellow circle with a black trefoil (three-bladed propeller) and central dot, indicating the presence of ionizing radiation. The high-contrast design ensures visibility and immediate recognition in safety signage, lab equipment, transport containers, and nuclear facilities. It was first developed in 1946 at the University of California, Berkeley, and standardized globally to prevent accidental exposure.

Used on signage, packaging, and equipment in nuclear power plants, medical radiology departments, research labs, and hazardous material transport. Matches user intent for safety education, regulatory compliance, or hazard identification resources.