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6 March 2016, 12:40
New documents have revealed Ttwenty workers at the Faslane nuclear submarine base on the Clyde were exposed to radiation as a result of safety mistakes.
It happened in February 2012 as engineers were repairing a leaking tank on a Trident submarine while a nearby nuclear reactor was operated.
Details emerged after a Freedom of Information (FOI) request by the campaign group Nuclear Informarion Service.
There was a prolonged and repeated failure of the ship's staff to understand and control the radiological hazard they were creating.
SNP Defence spokesperson Brendan O'Hara said: ''The MoD - once again - stands accused of a very poor approach to radiation safety at the Faslane base. When it comes to protecting our armed forces personnel, the contractors working at the base, as well as the wider community, nuclear safety must be paramount.
''These incidents and how they were subsequently handled, pose real and serious questions , not just about nuclear safty procedures at the base - but also whether the regulator the ONR is doing enough - and quickly enough - to address these concerns.
''The MoD must investigate and explain why these failings occur and lay out precisely what it is doing to get it sorted.''
An MOD spokesman said:
''Safety at Clyde naval base is of paramount importance and none of the events in this report caused harm to any member of staff or the public. Investigations were carried out and measures put in place to prevent such incidents from occurring again, and we continue to conduct rigorous monitoring as part of our commitment to maintain the highest standards."