The following information was excerpted from an email received from the State of Louisiana:
On 8/15/2018, the radiation safety officer (RSO) at NASA's Michoud Assembly Facility (NASA-M) discovered a dew point device containing a radioactive source was sent to a recycling center for disposal. The recycler was UNICOR Recycling Factory (UCF) in Marinna, FL. UCF was not licensed to receive radioactive material. The dew point device with the source was sent to UCF for disposal on 9/26/2013. The RSO reported the disposal to the Louisiana Department of Environmental Quality, as a lost source and unreported release of radioactive material, on 5/9/2019. UCF was contacted my NASA-M for records and documentation, but UCF stated they did not have any records/documentation for that device disposal.
The device was an Alnor Instrument Co.; Type 7000U Dew Point Determination device with a 35 microCi Am-241 source (serial number 25829).
Louisiana Event Report ID No.: LA-190007
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