Safety Signs News
Dockyard employees exposed to radiation
6th January 2014 | Warning Signs
Posted by Jason Nicholls
Three workers at Devonport Dockyard in Plymouth were accidentally exposed to a small dose of radiation while moving a large component from a submarine.
The exposure was caused by a relatively small tear in the heavy plastic sheeting that enclosed the radioactive component. The warning signs of a possible radiation leak were not spotted in time to prevent workers being exposed.
A small amount of radioactive material was released into the atmosphere and inhaled by three workers. They received radiation doses ranging from under ten microsieverts up to 50 microsieverts.
The maximum daily dose permitted at Devonport Dockyard is 500 microsieverts, and the statutory annual dose limit is 2,000, so none of the workers received anything like a dangerous dose.
Despite the relatively minor nature of the incident, Devonport Dockyard has committed to improving safety conditions to prevent any more accidents of this sort from occurring.
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