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Organically-bound tritium (OBT) dispersion and accumulation in Severn Estuary sediments. Contract RP01034: report to the Food Standards Agency

Organically-bound tritium (OBT) dispersion and accumulation in Severn Estuary sediments. Contract RP01034: report to the Food Standards Agency
Organically-bound tritium (OBT) dispersion and accumulation in Severn Estuary sediments. Contract RP01034: report to the Food Standards Agency
Discharges of tritium from UK nuclear and non-nuclear sites are usually assumed to be in the form of tritiated water (HTO). However, a proportion of HTO may be converted to organically bound tritium (OBT). Discharges from Nycomed Amersham (Cardiff) are unusual in that they contain tritium specifically as OBT, but marine dispersion modelling, and dose assessments, are based on tritiated water.

The behaviour of OBT in the environment would be different from HTO. Little is known about the proportion of OBT present in foodstuffs, but the committed effective dose from OBT is higher than that from a comparable activity of HTO. The project will enable the assessment of the specific impact of OBT in critical group dose assessments.
Food Standards Agency
Croudace, I.W.
24deb068-d096-485e-8a23-a32b7a68afaf
Warwick, P.E.
f2675d83-eee2-40c5-b53d-fbe437f401ef
Food Standards Agency
Croudace, I.W.
24deb068-d096-485e-8a23-a32b7a68afaf
Warwick, P.E.
f2675d83-eee2-40c5-b53d-fbe437f401ef

Croudace, I.W. and Warwick, P.E. , Food Standards Agency (2009) Organically-bound tritium (OBT) dispersion and accumulation in Severn Estuary sediments. Contract RP01034: report to the Food Standards Agency London, GB. Food Standards Agency

Record type: Monograph (Project Report)

Abstract

Discharges of tritium from UK nuclear and non-nuclear sites are usually assumed to be in the form of tritiated water (HTO). However, a proportion of HTO may be converted to organically bound tritium (OBT). Discharges from Nycomed Amersham (Cardiff) are unusual in that they contain tritium specifically as OBT, but marine dispersion modelling, and dose assessments, are based on tritiated water.

The behaviour of OBT in the environment would be different from HTO. Little is known about the proportion of OBT present in foodstuffs, but the committed effective dose from OBT is higher than that from a comparable activity of HTO. The project will enable the assessment of the specific impact of OBT in critical group dose assessments.

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More information

Published date: 2009
Organisations: Geochemistry

Identifiers

Local EPrints ID: 354412
URI: http://eprints.soton.ac.uk/id/eprint/354412
PURE UUID: 2def87fd-0664-46ae-ae06-4596b31cff70
ORCID for P.E. Warwick: ORCID iD orcid.org/0000-0001-8774-5125

Catalogue record

Date deposited: 10 Jul 2013 15:57
Last modified: 13 Oct 2022 01:34

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Contributors

Author: I.W. Croudace
Author: P.E. Warwick ORCID iD
Corporate Author: Food Standards Agency

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