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Pereira Cardoso, Renan  
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Muniz, Marcelo C.  
dc.contributor.author
Juri Ayub, Jimena  
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Fagundes, Bruno  
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Meigikos dos Anjos, Robewrto  
dc.contributor.author
Silva Cid, Alberto  
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Velasco, Ricardo Hugo  
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Lohaiza, Flavia Analia  
dc.date.available
2024-10-21T17:52:55Z  
dc.date.issued
2011  
dc.identifier.citation
7Be content in rainfall and soil deposition in South American coastal ecosystems; XXXIV edition of the brazilian workshop on nuclear physics; Brasil; 2011; 1-6  
dc.identifier.issn
1824-8039  
dc.identifier.uri
http://hdl.handle.net/11336/246219  
dc.description.abstract
Beryllium-7 (7Be) is a cosmogenic radionuclide that enters from the atmosphere, mainly by wet deposition, being widely used to explore environmental processes. With the aim of using beryllium as an environmental tracer, we are evaluating the 7Be input through rainfalls, its soil deposition and vertical distribution in soil profile. In Niteroi City (Rio de Janeiro State, Brazil) the 7Be content in rainfall and soil were evaluated. The 7Be content in samples was determined by measuring its γ-emission at 477.6 Kev, using a special 55% efficiency high-purity germanium detector produced by Canberra. 7Be activity concentration in rainfall ranged from 0.12 ± 0.15 Bq l-1 to 1.96 ± 0.23 Bq l-1 (Mean=0.58 Bq l-1, SD=0.48 Bq l-1). The magnitude of precipitation ranged from 2.8 to 40 mm. The 7Be activity concentrations in Niteroi rains are lower than values reported from another sites. Differences in 7Be content should be expected to occur in different environment, due to the effect that latitude and altitude can have on 7Be atmospheric concentrations. 7Be wet deposition ranged from 0.39 ± 0.49 Bq m-2 to 34.8 ± 4.9 Bq m-2. The content and distribution of 7Be in soil were analyzed for the months of February and April. 7Be are presents at the first 2 cm depth and the activity concentration decrease exponentially, when depth increases. The total 7Be content in soil were 190 Bq m-2 and 330 Bq m-2 for February and April, respectively. These results are expected because 7Be are strongly retained in the first centimetres of soil and between February and April several rains have occurred, providing 7Be to soil.  
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application/pdf  
dc.language.iso
eng  
dc.publisher
Sistema de Información sobre Sequías para el sur de Sudamérica  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
no corresponde  
dc.subject.classification
Otras Ciencias de la Tierra y relacionadas con el Medio Ambiente  
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
7Be content in rainfall and soil deposition in South American coastal ecosystems  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.type
info:eu-repo/semantics/conferenceObject  
dc.type
info:ar-repo/semantics/documento de conferencia  
dc.date.updated
2024-09-03T13:21:41Z  
dc.journal.pagination
1-6  
dc.journal.pais
Italia  
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Trieste  
dc.description.fil
Fil: Pereira Cardoso, Renan. Universidade Federal Fluminense; Brasil  
dc.description.fil
Fil: Muniz, Marcelo C.. Universidade Federal Fluminense; Brasil  
dc.description.fil
Fil: Juri Ayub, Jimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi". Universidad Nacional de San Luis. Facultad de Ciencias Físico, Matemáticas y Naturales. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi"; Argentina. Universidade Federal Fluminense; Brasil  
dc.description.fil
Fil: Fagundes, Bruno. Universidade Federal Fluminense; Brasil  
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Fil: Meigikos dos Anjos, Robewrto. Universidade Federal Fluminense; Brasil  
dc.description.fil
Fil: Silva Cid, Alberto. Universidade Federal Fluminense; Brasil  
dc.description.fil
Fil: Velasco, Ricardo Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi". Universidad Nacional de San Luis. Facultad de Ciencias Físico, Matemáticas y Naturales. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi"; Argentina  
dc.description.fil
Fil: Lohaiza, Flavia Analia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi". Universidad Nacional de San Luis. Facultad de Ciencias Físico, Matemáticas y Naturales. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi"; Argentina  
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info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.22323/1.142.0064  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pos.sissa.it/142/064/pdf  
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dc.coverage
Internacional  
dc.type.subtype
Congreso  
dc.description.nombreEvento
XXXIV edition of the brazilian workshop on nuclear physics  
dc.date.evento
2011-06-05  
dc.description.paisEvento
Brasil  
dc.type.publicacion
Journal  
dc.description.institucionOrganizadora
Universidade Federal Fluminense  
dc.source.revista
Proceedings of science  
dc.date.eventoHasta
2011-06-10  
dc.type
Congreso