The following information was received via email:
On December 10, 2020, the licensee discovered a lost iodine-131 shipment. The shipper of the 475 mCi of iodine-131 Liquid (Yellow II label) delivered the package to the wrong address, a neighboring business. The package was delivered to the licensee by the recipient before the package was known to be 'lost', later on the scheduled delivery date. The surface reading of 12 mR/hr was obtained upon the licensee receiving the package. The package was estimated to be in the possession of the recipient for approximately 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />. The estimated dose was approximately 12 mrem if an individual had been in contact with the package for the entire time it was in the possession of the recipient. Since the material was delivered by the recipient within the time frame the shipper would normally deliver, and the facility had no reason to suspect the material was incorrectly delivered, the licensee will inform the shipper of the incident to handle training of their staff on proper delivery of radioactive packages.
PA Event Report ID No.: PA200024
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