Media playback is unsupported on your device

Atomic Weapons Establishment leaks tritium gas into stream

15 October 2013 Last updated at 00:03 BST

The Atomic Weapons Establishment (AWE) in Aldermaston has been criticised for leaking radioactive gas into a stream.

There was an increase in levels of tritium in Aldermaston Stream after AWE turned off a ventilation fan in a radioactive waste storage unit.

The Environment Agency said the low levels of radiation in the stream did not represent an environmental hazard.

However, it said AWE had not adequately assessed the environmental impact of its modifications to the storage unit.

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.