Radiation Hazard Symbol - Universal Warning Sign for Ionizing Radiation #1481372 (License: Personal Use)

This image displays the internationally recognized radiation hazard symbol, also known as the trefoil, consisting of three black blades arranged at 120-degree angles around a central circle on a bright yellow background. Designed in 1946 at the University of California, Berkeley, it conveys immediate visual warning of ionizing radiation sources. The high-contrast color scheme ensures visibility and recognition across languages and contexts.

Used on signage, equipment labels, packaging, and safety documentation in nuclear power plants, radiology departments, research labs, and transport containers for radioactive materials. Matches user intent for hazard awareness, safety training, regulatory compliance, or educational content about radiation risks.