Question to the Department for Business, Energy and Industrial Strategy:

To ask Her Majesty's Government, in the light of the disposal of chemicals from a laboratory on the Sellafield Site on 21 October, whether there was, or whether there has been at any time, a possible risk to radiological inventory in the surrounding laboratories.

The chemicals disposed of on 21 October had been kept within one room of a laboratory facility at Sellafield. This room and the surrounding rooms are not bulk storage areas for radiological inventory, but can contain residues of material.

It is Sellafield Ltd’s assessment that, in the unlikely event of an adverse chemical reaction, the effect would have been contained within the building envelope. At no time was a release of radioactivity from the site credible.