This is a circular orange radiation warning sign in which three white sectors are evenly distributed. On some platforms, it has a yellow background and a black fan shape. Warnings for areas emitting ionizing radiation are used to remind people to pay attention
⚠️ or stay away. Usually used in biochemical
🧬, nuclear power, or medical fields
💉, which is similar to
☣️ biological hazards. Refers to a dangerous or negatively affected object, or someone is a "dangerous person". Because of the similar patterns on social networking sites,it also use to describe pizza
🍕and fan .