The International Atomic Energy Agency found that the trefoil radiation symbol is unintuitive and can be variously interpreted by those uneducated in its meaning; therefore, its role as a hazard warning was compromised as it did not clearly indicate "danger" to many non-Westerners and children who encountered it. As a result of research, a new radiation hazard symbol (ISO 21482) was developed in 2007 to be placed near the most dangerous parts of radiation sources featuring a skull, someone running away, and using a red rather than yellow background.Linda Lodding, "Drop it and Run! New Symbol Warns of Radiation Dangers and Aims to Save Lives ," IAEA Bulletin 482 (March 2007): 70–72.
the international atomic energy agency found that the trefoil radiation symbol is unintuitive and can be variously interpreted by those uneducated in its meaning; therefore its role as a hazard warning was compromised as it did not clearly indicate "danger" to many non-westerners and children who encountered it as a result of research a new radiation hazard symbol (iso 21482) was developed in 2007 to be placed near the most dangerous parts of radiation sources featuring a skull someone running away and using a red rather than yellow backgroundlinda lodding "drop it and run new symbol warns of radiation dangers and aims to save lives " iaea bulletin 482 (march 2007) 70–72