U and Th speciation in river sediments

A study of the distribution of some natural radionuclides in different chemical fractions of river bottom sediments has been carried out. The study has shown that the majority of the total U in sediments is located in the non-residual fractions, while Th is more likely to be present in the residual...

Descripción completa

Detalles Bibliográficos
Autores: Martínez Aguirre, Aránzazu, García León, Manuel, Ivanovich, M.
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:1995
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/137190
Acceso en línea:https://hdl.handle.net/11441/137190
https://doi.org/10.1016/0048-9697(95)04759-X
Access Level:acceso abierto
Palabra clave:Radionuclide pollution
Uranium (U)
Thorium (Th)
River sediments
Fertilizer industries
id ES_07dc538f1fe99b80f5d3a809f61b4d85
oai_identifier_str oai:idus.us.es:11441/137190
network_acronym_str ES
network_name_str España
repository_id_str
spelling U and Th speciation in river sedimentsMartínez Aguirre, AránzazuGarcía León, ManuelIvanovich, M.Radionuclide pollutionUranium (U)Thorium (Th)River sedimentsFertilizer industriesA study of the distribution of some natural radionuclides in different chemical fractions of river bottom sediments has been carried out. The study has shown that the majority of the total U in sediments is located in the non-residual fractions, while Th is more likely to be present in the residual ones. This difference between U and Th reflects largely a much higher mobility of U relative to Th in surface and near-surface environments. Coprecipitation with amorphous ferromanganese oxyhydroxides is the main process of U and Th incorporation from the water column into the soil particles. Moreover, the distribution of the radionuclides and the analysis of the Th/U mass ratios in different chemical fractions of sediments has made an unequivocal connection between the enhanced U content in river sediments and the wastes discharged into the rivers by the operation of fertilizer industries.ElsevierFísica Aplicada IFísica Atómica, Molecular y Nuclear1995info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/137190https://doi.org/10.1016/0048-9697(95)04759-Xreponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésScience of the Total Environment, 173-174 (December 1995), 203-209.https://www.sciencedirect.com/science/article/pii/004896979504759X?via%3Dihubinfo:eu-repo/semantics/openAccessoai:idus.us.es:11441/1371902026-06-17T12:51:07Z
dc.title.none.fl_str_mv U and Th speciation in river sediments
title U and Th speciation in river sediments
spellingShingle U and Th speciation in river sediments
Martínez Aguirre, Aránzazu
Radionuclide pollution
Uranium (U)
Thorium (Th)
River sediments
Fertilizer industries
title_short U and Th speciation in river sediments
title_full U and Th speciation in river sediments
title_fullStr U and Th speciation in river sediments
title_full_unstemmed U and Th speciation in river sediments
title_sort U and Th speciation in river sediments
dc.creator.none.fl_str_mv Martínez Aguirre, Aránzazu
García León, Manuel
Ivanovich, M.
author Martínez Aguirre, Aránzazu
author_facet Martínez Aguirre, Aránzazu
García León, Manuel
Ivanovich, M.
author_role author
author2 García León, Manuel
Ivanovich, M.
author2_role author
author
dc.contributor.none.fl_str_mv Física Aplicada I
Física Atómica, Molecular y Nuclear
dc.subject.none.fl_str_mv Radionuclide pollution
Uranium (U)
Thorium (Th)
River sediments
Fertilizer industries
topic Radionuclide pollution
Uranium (U)
Thorium (Th)
River sediments
Fertilizer industries
description A study of the distribution of some natural radionuclides in different chemical fractions of river bottom sediments has been carried out. The study has shown that the majority of the total U in sediments is located in the non-residual fractions, while Th is more likely to be present in the residual ones. This difference between U and Th reflects largely a much higher mobility of U relative to Th in surface and near-surface environments. Coprecipitation with amorphous ferromanganese oxyhydroxides is the main process of U and Th incorporation from the water column into the soil particles. Moreover, the distribution of the radionuclides and the analysis of the Th/U mass ratios in different chemical fractions of sediments has made an unequivocal connection between the enhanced U content in river sediments and the wastes discharged into the rivers by the operation of fertilizer industries.
publishDate 1995
dc.date.none.fl_str_mv 1995
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/137190
https://doi.org/10.1016/0048-9697(95)04759-X
url https://hdl.handle.net/11441/137190
https://doi.org/10.1016/0048-9697(95)04759-X
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Science of the Total Environment, 173-174 (December 1995), 203-209.
https://www.sciencedirect.com/science/article/pii/004896979504759X?via%3Dihub
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869403008539820033
score 15,300719

Similares en LA Referencia