Sammendrag
The aim of the project is to study remobilisation of radiologically important
radionuclides from sediments of different characteristics in European
environments. Transboundary exposure has to be taken into account into the
modelling and assessment of commited doses. The radiological consequences will
be evaluated by the study of long-range transport of the radionuclides, their
speication, uptake in biota and radioecological modelling. The objectives will
be achieved through collaboration between experienced scientists regarding
field sampling, laboratory experiments and analytical methods using latest
techniques. The results will create a more precise knowledge of long-term
effects on environment and man from present and past sources and a more
informed debate on waste management or controlled release of radioactivity in
the marine environment. AUN will:· provide input data for long range marine
transport and essential for the source term,· information on o processes
controlling radionuclide remobilisation from contaminated oxic and anoxic
sediments, with emphasis on the role of environmental parameters, radionuclide
speciation and solid partitioning (including colloids) in sorption/desorption
processes at the sediment-water interfaceo the bioavailabilty of artificial
radionuclides which have been remobilised from sediments in the aquatic
environment. · to improve the methodology for describing sediment-water
interactions and transport models with special regards to the study of the
mechanisms for remobilisation and bioavailability.
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Vitenskapelig sammendrag
The aim of the project is to study remobilisation of radiologically important
radionuclides from sediments of different characteristics in European
environments. Transboundary exposure has to be taken into account into the
modelling and assessment of commited doses. The radiological consequences will
be evaluated by the study of long-range transport of the radionuclides, their
speication, uptake in biota and radioecological modelling. The objectives will
be achieved through collaboration between experienced scientists regarding
field sampling, laboratory experiments and analytical methods using latest
techniques. The results will create a more precise knowledge of long-term
effects on environment and man from present and past sources and a more
informed debate on waste management or controlled release of radioactivity in
the marine environment. AUN will:· provide input data for long range marine
transport and essential for the source term,· information on o processes
controlling radionuclide remobilisation from contaminated oxic and anoxic
sediments, with emphasis on the role of environmental parameters, radionuclide
speciation and solid partitioning (including colloids) in sorption/desorption
processes at the sediment-water interfaceo the bioavailabilty of artificial
radionuclides which have been remobilised from sediments in the aquatic
environment. · to improve the methodology for describing sediment-water
interactions and transport models with special regards to the study of the
mechanisms for remobilisation and bioavailability.
Vis fullstendig beskrivelse