Self-cleaning in an estuarine area formerly affected by 226Ra anthropogenic enhancements

The estuary of the Odiel River has been affected by both direct discharges of phosphogypsum (radium enriched industrial waste) and dissolution and weathering of the exposed piles where this radium enriched waste was stored. In 1998 the waste management policy for industries changed. The direct disch...

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Autores: Absi, Abdeslam, Villa Alfageme, María, Moreno González, Helena Patricia, Manjón Collado, Guillermo, Periáñez Rodríguez, Raúl
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2004
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/134013
Acceso en línea:https://hdl.handle.net/11441/134013
https://doi.org/10.1016/j.scitotenv.2004.03.001
Access Level:acceso abierto
Palabra clave:Radium
Estuarine environment
Phosphogypsum
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spelling Self-cleaning in an estuarine area formerly affected by 226Ra anthropogenic enhancementsAbsi, AbdeslamVilla Alfageme, MaríaMoreno González, Helena PatriciaManjón Collado, GuillermoPeriáñez Rodríguez, RaúlRadiumEstuarine environmentPhosphogypsumThe estuary of the Odiel River has been affected by both direct discharges of phosphogypsum (radium enriched industrial waste) and dissolution and weathering of the exposed piles where this radium enriched waste was stored. In 1998 the waste management policy for industries changed. The direct discharges stopped and the new phosphogypsum piles were well protected against dissolution processes, avoiding any transference of radium into the environment. This work presents a study of the evolution with time (1999–2002) of the levels of 226Ra in river water and sediment samples with the new waste management policy. A liquid scintillation technique was used to measure the 226Ra activity concentration in sediment samples. A gas-proportional counter was also used to measure the 226Ra activity concentration in river water samples. The main conclusion is that a systematic and continuous decrease of the activity concentration of 226Ra with time in the Odiel River estuary is occurring. Thus, a possible self-cleaning in the estuary, once the direct waste discharges were avoided, can be inferred.ElsevierFísica Aplicada IFísica Aplicada IIFísica Atómica, Molecular y NuclearFQM280: Física No Lineal2004info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/134013https://doi.org/10.1016/j.scitotenv.2004.03.001reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésScience of the Total Environment, 329 (1-3), 183-195.https://www.sciencedirect.com/science/article/pii/S0048969704001524?via%3Dihubinfo:eu-repo/semantics/openAccessoai:idus.us.es:11441/1340132026-06-17T12:51:07Z
dc.title.none.fl_str_mv Self-cleaning in an estuarine area formerly affected by 226Ra anthropogenic enhancements
title Self-cleaning in an estuarine area formerly affected by 226Ra anthropogenic enhancements
spellingShingle Self-cleaning in an estuarine area formerly affected by 226Ra anthropogenic enhancements
Absi, Abdeslam
Radium
Estuarine environment
Phosphogypsum
title_short Self-cleaning in an estuarine area formerly affected by 226Ra anthropogenic enhancements
title_full Self-cleaning in an estuarine area formerly affected by 226Ra anthropogenic enhancements
title_fullStr Self-cleaning in an estuarine area formerly affected by 226Ra anthropogenic enhancements
title_full_unstemmed Self-cleaning in an estuarine area formerly affected by 226Ra anthropogenic enhancements
title_sort Self-cleaning in an estuarine area formerly affected by 226Ra anthropogenic enhancements
dc.creator.none.fl_str_mv Absi, Abdeslam
Villa Alfageme, María
Moreno González, Helena Patricia
Manjón Collado, Guillermo
Periáñez Rodríguez, Raúl
author Absi, Abdeslam
author_facet Absi, Abdeslam
Villa Alfageme, María
Moreno González, Helena Patricia
Manjón Collado, Guillermo
Periáñez Rodríguez, Raúl
author_role author
author2 Villa Alfageme, María
Moreno González, Helena Patricia
Manjón Collado, Guillermo
Periáñez Rodríguez, Raúl
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Física Aplicada I
Física Aplicada II
Física Atómica, Molecular y Nuclear
FQM280: Física No Lineal
dc.subject.none.fl_str_mv Radium
Estuarine environment
Phosphogypsum
topic Radium
Estuarine environment
Phosphogypsum
description The estuary of the Odiel River has been affected by both direct discharges of phosphogypsum (radium enriched industrial waste) and dissolution and weathering of the exposed piles where this radium enriched waste was stored. In 1998 the waste management policy for industries changed. The direct discharges stopped and the new phosphogypsum piles were well protected against dissolution processes, avoiding any transference of radium into the environment. This work presents a study of the evolution with time (1999–2002) of the levels of 226Ra in river water and sediment samples with the new waste management policy. A liquid scintillation technique was used to measure the 226Ra activity concentration in sediment samples. A gas-proportional counter was also used to measure the 226Ra activity concentration in river water samples. The main conclusion is that a systematic and continuous decrease of the activity concentration of 226Ra with time in the Odiel River estuary is occurring. Thus, a possible self-cleaning in the estuary, once the direct waste discharges were avoided, can be inferred.
publishDate 2004
dc.date.none.fl_str_mv 2004
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/11441/134013
https://doi.org/10.1016/j.scitotenv.2004.03.001
url https://hdl.handle.net/11441/134013
https://doi.org/10.1016/j.scitotenv.2004.03.001
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Science of the Total Environment, 329 (1-3), 183-195.
https://www.sciencedirect.com/science/article/pii/S0048969704001524?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
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score 15,301603

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