The symbol will not be located on building access doors, transportation packages or containers. "The new ionizing radiation warning symbol (ISO 21482) is the latest successful result of long-standing ...

The circle in the middle of the trefoil represents an atom and the blades represent the three common types of ionizing radiation emanating from it — alpha (α), beta (β) and gamma (γ). The symbol was ...

U.N. watchdog unveils new symbol for radiation risk By Reuters August 9, 20072:10 PM PDTUpdated February 16, 2007 ...