The Ministry of Defence has blocked the Scottish Government’s environmental watchdog from releasing information about radioactive pollution from the Clyde nuclear bomb bases for the last nine years.

Emails released under freedom of information (FoI) law reveal that the Ministry of Defence (MoD) asked the Scottish Environment Protection Agency (Sepa) not to publish information about “environmental issues with radioactivity” at Faslane and Coulport near Helensburgh to protect “national security”.