Spatial mobility of U and Th in a U-enriched area (Central Portugal)
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/68301 |
Resumo: | Uranium and thorium are toxic in different environments. The exploitation of uranium mines and associated mine drainage leaching towards streams, sediments, and soils cause relevant pollution. The U-mine areas present high concentrations of potentially toxic elements with several consequences to ecosystems and human health. Physicochemical and potentially toxic elements of mine dumps, stream sediments, and soils from the Canto Lagar uranium mine area (Central Portugal) were analyzed. Stream sediments, soils, and mine dumps show a large range in the concentration values of Fe, U, As, Cu, Zn, Pb, and Th, suggesting geological and mine contributions. Most of the selected potential toxic elements from sediments present a low to moderate contamination degree, except for As, W, and U, which vary between high and very high contamination index. The soils must not be used in agricultural or residential activities due to contamination in As and U. This abandoned mine represents an environmental risk due to the spatial mobility and dispersion of potentially toxic elements from the dumps to the sediments and soils, as well as by surface runoff and wind. |
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Spatial mobility of U and Th in a U-enriched area (Central Portugal)uranium minesdumpsstream sedimentssoilsPortugalCiências Naturais::Ciências da Terra e do AmbienteScience & TechnologyUranium and thorium are toxic in different environments. The exploitation of uranium mines and associated mine drainage leaching towards streams, sediments, and soils cause relevant pollution. The U-mine areas present high concentrations of potentially toxic elements with several consequences to ecosystems and human health. Physicochemical and potentially toxic elements of mine dumps, stream sediments, and soils from the Canto Lagar uranium mine area (Central Portugal) were analyzed. Stream sediments, soils, and mine dumps show a large range in the concentration values of Fe, U, As, Cu, Zn, Pb, and Th, suggesting geological and mine contributions. Most of the selected potential toxic elements from sediments present a low to moderate contamination degree, except for As, W, and U, which vary between high and very high contamination index. The soils must not be used in agricultural or residential activities due to contamination in As and U. This abandoned mine represents an environmental risk due to the spatial mobility and dispersion of potentially toxic elements from the dumps to the sediments and soils, as well as by surface runoff and wind.This research was funded by FCT—Fundação para a Ciência e a Tecnologia, I.P., grant number FCT FRH/BPD/64921/2009 and Nano-MINENV PTDC/CTA-AMB/29259/2017.Multidisciplinary Digital Publishing InstituteUniversidade do MinhoAntunes, MargaridaSantos, AntónioValente, TeresaAlbuquerque, Teresa20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/68301engAntunes, M.; Santos, A.; Valente, T.; Albuquerque, T. Spatial Mobility of U and Th in a U-enriched Area (Central Portugal). Appl. Sci. 2020, 10, 7866. DOI: 10.3390/app102178662076-341710.3390/app10217866https://www.mdpi.com/2076-3417/10/21/7866info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:07:42Zoai:repositorium.sdum.uminho.pt:1822/68301Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:58:43.561087Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Spatial mobility of U and Th in a U-enriched area (Central Portugal) |
title |
Spatial mobility of U and Th in a U-enriched area (Central Portugal) |
spellingShingle |
Spatial mobility of U and Th in a U-enriched area (Central Portugal) Antunes, Margarida uranium mines dumps stream sediments soils Portugal Ciências Naturais::Ciências da Terra e do Ambiente Science & Technology |
title_short |
Spatial mobility of U and Th in a U-enriched area (Central Portugal) |
title_full |
Spatial mobility of U and Th in a U-enriched area (Central Portugal) |
title_fullStr |
Spatial mobility of U and Th in a U-enriched area (Central Portugal) |
title_full_unstemmed |
Spatial mobility of U and Th in a U-enriched area (Central Portugal) |
title_sort |
Spatial mobility of U and Th in a U-enriched area (Central Portugal) |
author |
Antunes, Margarida |
author_facet |
Antunes, Margarida Santos, António Valente, Teresa Albuquerque, Teresa |
author_role |
author |
author2 |
Santos, António Valente, Teresa Albuquerque, Teresa |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Antunes, Margarida Santos, António Valente, Teresa Albuquerque, Teresa |
dc.subject.por.fl_str_mv |
uranium mines dumps stream sediments soils Portugal Ciências Naturais::Ciências da Terra e do Ambiente Science & Technology |
topic |
uranium mines dumps stream sediments soils Portugal Ciências Naturais::Ciências da Terra e do Ambiente Science & Technology |
description |
Uranium and thorium are toxic in different environments. The exploitation of uranium mines and associated mine drainage leaching towards streams, sediments, and soils cause relevant pollution. The U-mine areas present high concentrations of potentially toxic elements with several consequences to ecosystems and human health. Physicochemical and potentially toxic elements of mine dumps, stream sediments, and soils from the Canto Lagar uranium mine area (Central Portugal) were analyzed. Stream sediments, soils, and mine dumps show a large range in the concentration values of Fe, U, As, Cu, Zn, Pb, and Th, suggesting geological and mine contributions. Most of the selected potential toxic elements from sediments present a low to moderate contamination degree, except for As, W, and U, which vary between high and very high contamination index. The soils must not be used in agricultural or residential activities due to contamination in As and U. This abandoned mine represents an environmental risk due to the spatial mobility and dispersion of potentially toxic elements from the dumps to the sediments and soils, as well as by surface runoff and wind. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020 2020-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/68301 |
url |
http://hdl.handle.net/1822/68301 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Antunes, M.; Santos, A.; Valente, T.; Albuquerque, T. Spatial Mobility of U and Th in a U-enriched Area (Central Portugal). Appl. Sci. 2020, 10, 7866. DOI: 10.3390/app10217866 2076-3417 10.3390/app10217866 https://www.mdpi.com/2076-3417/10/21/7866 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute |
publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799132378042466304 |