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Distributions of Pu, Am and Cs in margin sediments from the western Mediterranean (Spanish coast)

TitoloDistributions of Pu, Am and Cs in margin sediments from the western Mediterranean (Spanish coast)
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2002
AutoriGascó, C., Antón M.P., Pozuelo M., Meral J., González A.M., Papucci C., and Delfanti Roberta
RivistaJournal of Environmental Radioactivity
Volume59
Paginazione75-89
ISSN0265931X
Parole chiaveAir Pollutants, Americium, americium 241, article, cesium 137, Cesium Radioisotopes, continental margin, Downward falling particulate matter, Environmental monitoring, Environmental Pollutants, Environmental radioactivity, fallout, Geologic Sediments, Impurities, Mediterranean Sea, particulate matter, Plutonium, plutonium 238, plutonium 239, plutonium 240, Pollution, Radioactive, Radioactive materials, radioisotope, radionuclide, seashore, sediment, sediment pollution, Sedimentation, sedimentation rate, Sediments, Spain, surface property, Water, Water Movements, Water Pollutants
Abstract

Continental margins are important areas to be considered when studying the distributions and depositions of pollutants, both conventional and radioactive. Coastal sediments accumulate most of those contaminants which can be introduced following atmospheric and/or fluvial pathways. Moreover, their residence times within the water column are usually shortened due to their affinity to associate with the downward falling particulate matter, more abundant at shallower depths. In this paper, the distribution profiles and inventories of plutonium, americium and cesium are detailed, providing useful information about recent sedimentation phenomena such as sediment mixing, slumping processes and bioturbation. Unsupported 210Pb data are used as reliable indicators of enhanced/reduced deposition events. Also, the calculated inventories have enabled the estimation of the radiological contribution of the Spanish Mediterranean margin to the total radioactivity deposited onto the Mediterranean sea floor. Copyright © 2002 Elsevier Science Ltd.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0036132458&doi=10.1016%2fS0265-931X%2801%2900037-6&partnerID=40&md5=7ddba712b9b791e8f41ec9273e11c164
DOI10.1016/S0265-931X(01)00037-6
Citation KeyGascó200275