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Artificial radionuclides in the shelf seas of northwest Europe from UK and other sources. - AE0114

Description
R&D Summary Objectives:- To describe the behaviour and time- and space-dependent distributions of long-lived artificial radionuclides (e.g. Pu-239/240, Am-241, Cs-137 etc.) released into UK coastal waters against the background of inputs from other land-based sources to the shelf seas of northwest Europe, and from fallout. To provide essential support for, and validation of, assessments of past and present discharge practices in the context of continuing availability of the long-lived radionuclides via the food-chain and the application of more restrictive constraints on disposal operations. Key Customer Purpose:- To enable MAFF to keep under review, on the basis of the best available scientific information, its policies, under RSA 1960, on current discharges from Sellafield and other licenced nuclear sites into UK coastal waters, and the legacy of past discharges of long-lived radionuclides in the shelf seas of northwest Europe.
Objective
This project will continue detailed studies to investigate the behaviour of radionuclides discharged from UK nuclear sites (primarily Sellafield) into UK coastal waters, and their wider dispersion into the waters of the northwest European Shelf. More specifically, work will be carried out to determine the physico-chemical forms of radionuclides (simple ions, colloids and particulates, complexes with other components of the effluent or micro-components, e.g. organic compounds, in seawater etc.), and how these factors influence their behaviour in the environment. These data will provide an improved basis for the quantification of radionuclide transport processes in space and time, and provide more detailed information for the prediction of future radionuclide distributions and assessments of their overall fate. It is important that inputs of radionuclides from UK sources to the waters of the northwest European Shelf are accurately defined so that they can be differentiated from those of other well-documented land-based sources (e.g. Cap de la Hague) and from more problematic inputs such as lost submarines (e.g. Komsomolets) and past dumping by the former Soviet Union in the Barents and Kara Seas.
Project Documents
• Final Report : AE0114: Final report ARTIFICIAL RADIONUCLIDES IN THE SHELF SEAS OF NORTHWEST EUROPE FROM UK AND OTHER SOURCES   (78k)
Time-Scale and Cost
From: 1993

To: 1997

Cost: £1,868,564
Contractor / Funded Organisations
CEFAS
Keywords
              
Fields of Study
Environmental Protection - Marine