GEOCHEMICAL ASSOCIATION OF PLUTONIUM IN MARINE-SEDIMENTS FROM PALOMARES (SPAIN)

Citation
Mp. Anton et al., GEOCHEMICAL ASSOCIATION OF PLUTONIUM IN MARINE-SEDIMENTS FROM PALOMARES (SPAIN), Radiochimica Acta, 66-7, 1994, pp. 443-446
Citations number
20
Categorie Soggetti
Nuclear Sciences & Tecnology","Chemistry Inorganic & Nuclear
Journal title
ISSN journal
00338230
Volume
66-7
Year of publication
1994
Pages
443 - 446
Database
ISI
SICI code
0033-8230(1994)66-7:<443:GAOPIM>2.0.ZU;2-Y
Abstract
The geochemical association of plutonium in sediments from the marine ecosystem of Palomares has been studied. A sequential leaching techniq ue using selective extractants has been employed to determine the perc entages of Pu in the following forms: (a) readily available, (b) excha ngeable and adsorbed to specific sites, (c) associated with organic ma tter, (d) sesquioxides, (e) residual. Plutonium was found to be associ ated mainly with phases (c), (d) and (e), and therefore, appears to be relatively inmobile and not readily available to bottom feeding biota . The effect of different source terms on Pu distribution is also disc ussed.