The following was received from the
California Department of Public Health, Radiologic Health Branch (
RHB) via email:
On March 8, 2023, the Regal Cinemas general manager contacted RHB to report a stolen tritium exit sign from their movie theater in Fresno, CA. Based on the general manager's statement, the theater has installed 90 tritium (H-3) exit signs. Every morning the assigned theater employee performs a daily exit sign inventory by going through the exit doors and the hallways. On Monday March 6, 2023, before the theater was opened to the public, one of the exit signs, located in the hallway leading to the auditorium number 5, was noted as missing. It appeared that it had been pulled out of the wall. The management and employees checked all possible dumping places, and were unable to locate the sign. RHB has requested additional information (model and serial number) regarding the exit sign.
THIS MATERIAL EVENT CONTAINS A 'Less than Cat 3' LEVEL OF RADIOACTIVE MATERIAL
Sources that are "Less than
IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as
moisture density gauges or thickness
gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to
http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf