Hot and gone, Wal-Mart signs prompt NRC action
The tritium gas in these signs is in a small quantity but the combined gas from 15,000 of them could be used to create a pretty deadly dirty bomb.
I do find it odd that so many of them are missing, I can see some falling off and then tossed in the trash instead of being disposal of properly, but 15,000?
Federal regulators have instructed dozens of companies to count their exit signs that use a low-level radioactive compound and report any that are missing, a directive issued after Wal-Mart Stores Inc. said it could not find 15,000 of the signs.
The world's largest retailer said Tuesday it has checked all of its U.S. stores and removed any glow-in-the-dark signs that use tritium, a hydrogen isotope that, when used in the signs, has a radioactive strength similar to that of a smoke alarm.
The tritium gas in these signs is in a small quantity but the combined gas from 15,000 of them could be used to create a pretty deadly dirty bomb.
I do find it odd that so many of them are missing, I can see some falling off and then tossed in the trash instead of being disposal of properly, but 15,000?