Artículo
Sediments as sinks and sources of marine radionuclides: Implications for their use as ocean tracers
Autor/es | Periáñez Rodríguez, Raúl
Abascal Ruíz, Unai López Gutiérrez, José María |
Departamento | Universidad de Sevilla. Departamento de Física Aplicada I Universidad de Sevilla. Departamento de Física Aplicada II |
Fecha de publicación | 2023-09 |
Fecha de depósito | 2023-09-21 |
Publicado en |
|
Resumen | A Lagrangian transport model for the North Atlantic has been applied to simulate the historical releases of 137Cs, 129I and 236U from the European nuclear fuel reprocessing plants. Advection by currents, mixing and decay ... A Lagrangian transport model for the North Atlantic has been applied to simulate the historical releases of 137Cs, 129I and 236U from the European nuclear fuel reprocessing plants. Advection by currents, mixing and decay are included, as radionuclide interactions between water, sediments and suspended matter. The model was validated comparing predictions with measured radionuclide concentrations in water and sediments in several areas. 129I and 236U signals entering the Arctic Ocean have been compared with the input terms: the 236U signal is distorted, but the 129I signal preserves its shape. In the first moments after the releases, the sediments act as sinks for 236U, but not significantly for 129I and ultimately they become sources of 236U to the open sea. This results in a weaker correlation between input and output signals for 236U than for 129I. The same effects as for 236U have been found for 137Cs signal into the Arctic. |
Agencias financiadoras | Junta de Andalucía |
Identificador del proyecto | P20_01217 |
Cita | Periáñez Rodríguez, R., Abascal Ruíz, U. y López Gutiérrez, J.M. (2023). Sediments as sinks and sources of marine radionuclides: Implications for their use as ocean tracers. Marine Pollution Bulletin, 194 (115316). https://doi.org/10.1016/j.marpolbul.2023.115316. |
Ficheros | Tamaño | Formato | Ver | Descripción |
---|---|---|---|---|
Sediments as sinks and sources ... | 2.640Mb | [PDF] | Ver/ | |