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The role of natural and industrial sources of Fe minerals in the geochemical behaviour of radionuclides in the NS AE0130 - AE1204
To determine the extent to which iron and manganese minerals
from both natural and industrial sorces contribute to the
remobilisation and distribution of radionuclides from
sediments in the north-eastern Irish Sea.
Key Customer Purpose:-
To enable current monitoring strategies to be more cost
effective through a better understanding of the likely
distribution of radionuclides in the Irish Sea, and thus
enable MAFF to make informed descisions regarding
authorisation of discharges of radionuclides from
(a) To determine the site specific distribution of alpha
emitters on sediment grains, Esk estuary and off shore
Cumbrian waters in relation to Kd factors.
(b) To identify the relative uptake of alpha emitters and
some gamma emitters onto natural iron minerals, debris from
industrial processing of iron in Cumbria and natural; redox
cycling with particular reference to seasonal biogeochemical
(c) To evaluate the role of iron and manganese radionuclide
(d) To determine the natural transport processes, and their
rates, likely to influence the retention of radionuclides in
the iron-manganese system for Cumbrian waters.
(e) To evaluate the likely influence of the total available
iron-manganese system on retention or loss of radionuclide
over the next 100 years.
(f) To provide an index whereby the state of the
iron-manganese system at any time can be identified in terms
of uptake of radionuclides. To identify any other major
element association controlling factors. To identify the
role of reactive iron in the system.
Time-Scale and Cost
Contractor / Funded Organisations
Phoenix Research Laboratory
Fields of Study
Environmental Protection - Marine