radioactive

This sign indicates dangerous areas with radioactive materials. The yellow and black symbol has the same meaning worldwide.

You might see this sign in places like hospital x-ray rooms or nuclear power plants. Entry to these areas is restricted without special permission.

This is the international standard symbol created in 1946 to warn of the dangers of radioactivity. The three blades rotating towards the center represent the nature of radioactivity.

In 2007, a more intuitive 'radiation hazard symbol' was added, featuring a skull and crossbones and a running person to ensure immediate recognition of the danger. It has become an essential safety sign in modern society.