CBRN event in Massachusetts, Woburn area, United States of America on Fri 6th June 2014

On September 3, 2014, following an inventory reconciliation, the Commonwealth of Massachusetts (the Agency) determined that eleven Model 2021 Nuclecel Ionizers "each originally containing up to 10 mCi PO210" were missing from the general licensee’s facility. The Agency also determined that “six devices contained material with calculated current activity well below the immediate report level (0.1 mCi for PO210), three devices contained material with calculated current activity of 0.12 mCi, and two devices contained material with calculated current activity of 0.77 mCi.” The Agency had not been notified over the lost sources by the licensee and at this time the licensee has not provided further details on the incident. Currently there is an ongoing open Agency review with an Agency inspector scheduled to “conduct a site visit.”