Base de dados : MEDLINE
Pesquisa : N06.850.135.848 [Categoria DeCS]
Referências encontradas : 4119 [refinar]
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[PMID]:29424986
[Au] Autor:Korsakov AV; Yablokov AV; Geger EV; Pugach LI
[Ti] Título:[Comparative evaluation of the prevalence of congenital malformations de novo in newborns from radiation-contaminated territories of the Bryansk region (1999-2014)].
[So] Source:Gig Sanit;95(7):607-13, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:On the basis of official statistics for 1999-2014 there was performed the comparative evaluation of the prevalence of congenital malformations de novo: polydactyly, reduction limb defects and multiple congenital malformations in newborns of radiation-contaminated areas of the Bryansk area residing in areas with the various density of radioactive contamination by long lived radionuclides cesium-137 (from 10.0 to 2523.4 kBq/m) and strontium-90 (from 0.7 to 42.5 kBq/m). The findings showed no statistically significant differences in the prevalence of polydactyly, reduction limb defects and multiple congenital malformations in newborns in the South-Western areas compared to medium regional values, although the maximum value of the amount of congenital malformations de novo is found in most radiation-contaminated areas.
[Mh] Termos MeSH primário: Anormalidades Congênitas/epidemiologia
Exposição Ambiental/efeitos adversos
Liberação Nociva de Radioativos/estatística & dados numéricos
[Mh] Termos MeSH secundário: Radioisótopos de Césio/análise
Feminino
Seres Humanos
Recém-Nascido
Masculino
Prevalência
Federação Russa/epidemiologia
Radioisótopos de Estrôncio/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Cesium Radioisotopes); 0 (Strontium Radioisotopes)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180301
[Lr] Data última revisão:
180301
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180210
[St] Status:MEDLINE


  2 / 4119 MEDLINE  
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[PMID]:29398043
[Au] Autor:Prister BS; Vinogradskaya VD; Lev TD; Talerko MM; Garger EK; Onishi Y; Tischenko OG
[Ad] Endereço:Institute for Safety Problem of Nuclear Power Plants, NAS of Ukraine, 12 Lysogirska Str., 03028 Kyiv, Ukraine.
[Ti] Título:Preventive radioecological assessment of territory for optimization of monitoring and countermeasures after radiation accidents.
[So] Source:J Environ Radioact;184-185:140-151, 2018 Apr.
[Is] ISSN:1879-1700
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A methodology of a preventive radioecological assessment of the territory has been developed for optimizing post-emergency monitoring and countermeasure implementation in an event of a severe radiation accident. Approaches and main stages of integrated radioecological zoning of the territory are described. An algorithm for the assessment of the potential radioecological criticality (sensitivity) of the area is presented. The proposed approach is validated using data of the dosimetric passportization in Ukraine after the Chernobyl accident for the test site settlements.
[Mh] Termos MeSH primário: Monitoramento de Radiação
Liberação Nociva de Radioativos/prevenção & controle
[Mh] Termos MeSH secundário: Acidente Nuclear de Chernobyl
Proteção Radiológica/métodos
Ucrânia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180220
[Lr] Data última revisão:
180220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180206
[St] Status:MEDLINE


  3 / 4119 MEDLINE  
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[PMID]:29288938
[Au] Autor:Bianchi S; Plastino W
[Ad] Endereço:Department of Mathematics and Physics, Roma Tre University, Via della Vasca Navale, 84, I-00146, Rome, Italy. Electronic address: stefano.bianchi@uniroma3.it.
[Ti] Título:Uranium time series analysis: A new methodological approach for event screening categorisation.
[So] Source:J Environ Radioact;183:37-40, 2018 Mar.
[Is] ISSN:1879-1700
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Uranium (U) groundwater anomalies, detected before the L'Aquila earthquake (April 6th, 2009), represent a key geochemical signal of a progressive increase of deep fluids fluxes at middle-lower crustal levels associated with the geodynamics of the earthquake. Although the analyses performed in association with the seismic pattern around Gran Sasso National Laboratory and the geophysical and geochemical patterns of the Gran Sasso aquifer supported this hypothesis, a new approach for time series analysis has been developed for event screening categorisation and to highlight U as possible strain meter in geodynamical processes, particularly those which characterise active normal faulting.
[Mh] Termos MeSH primário: Monitoramento de Radiação/métodos
Urânio/análise
Poluentes Radioativos da Água/análise
Poluição Química da Água/estatística & dados numéricos
[Mh] Termos MeSH secundário: Terremotos
Água Subterrânea/química
Itália
Liberação Nociva de Radioativos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Water Pollutants, Radioactive); 4OC371KSTK (Uranium)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180130
[Lr] Data última revisão:
180130
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171231
[St] Status:MEDLINE


  4 / 4119 MEDLINE  
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[PMID]:29278800
[Au] Autor:Leung WH; Ma WM; Chan PKY
[Ad] Endereço:Hong Kong Observatory, Hong Kong, China. Electronic address: whleung@hko.gov.hk.
[Ti] Título:Nuclear accident consequence assessment in Hong Kong using JRODOS.
[So] Source:J Environ Radioact;183:27-36, 2018 Mar.
[Is] ISSN:1879-1700
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The JRODOS (Java-based Real-time Online DecisiOn Support) is a decision support system for off-site emergency management for releases of radioactive material into the environment. This paper documents the application of JRODOS by the Hong Kong Observatory in accident consequence assessment and emergency preparedness studies. For operational considerations, the most computational efficient dispersion model in JRODOS, ATSTEP, is adopted. Verification studies for JRODOS's ATSTEP model have been conducted. Comparison with tracer experiment results showed that under neutral atmospheric conditions and distances up to 50 km, the JRODOS simulation outputs were in general of the same order of magnitude with the tracer data. To further evaluate the capability of JRODOS in short-range simulation, a case study on the Fukushima nuclear power plant accident was also carried out. JRODOS was able to produce realistic simulation results which were comparable to the actual airborne monitoring data of the Cs-137 ground deposition from the Fukushima accident. Furthermore, the results of a comprehensive study to assess the potential consequences of accidents at a nearby nuclear power station are presented. Simulation using the French S3 source term for the Guangdong Nuclear Power Station at Daya Bay showed that the projected effective doses within Hong Kong remain far below the IAEA generic criteria of projected dose for urgent protective actions in sheltering/evacuation, while the projected equivalent dose in thyroid may meet the IAEA generic criteria for use of thyroid blocking agent at some areas in the northeastern part of Hong Kong, at distances of up to about 40 km from Daya Bay depending on the prevailing weather conditions in different seasons.
[Mh] Termos MeSH primário: Poluentes Radioativos do Ar/análise
Defesa Civil/métodos
Liberação Nociva de Radioativos
[Mh] Termos MeSH secundário: Contaminação Radioativa do Ar/estatística & dados numéricos
Radioisótopos de Césio/análise
Hong Kong
Dose de Radiação
Monitoramento de Radiação/métodos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Air Pollutants, Radioactive); 0 (Cesium Radioisotopes)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180130
[Lr] Data última revisão:
180130
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171227
[St] Status:MEDLINE


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[PMID]:28961580
[Au] Autor:Lu W; Wu Z; Qiu R; Li C; Yang B; Gao S; Ren L; Li J
[Ad] Endereço:*Department of Engineering Physics, Tsinghua University, Beijing, China; †Key Laboratory of Particle & Radiation Imaging (Tsinghua University), Ministry of Education, Beijing, China; ‡Institute of Disease Control and Prevention, Academy of Military Medical Sciences, Beijing, China; §Joint Institute of Tsinghua University and Nuctech Company Limited, Beijing, China.
[Ti] Título:Physical Dosimetric Reconstruction of a Radiological Accident at Nanjing (China) for Clinical Treatment Using Thudose.
[So] Source:Health Phys;113(5):327-334, 2017 Nov.
[Is] ISSN:1538-5159
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A severe radiological accident involving an industrial radiography source containing Ir occurred in China. A worker was seriously exposed, which resulted in acute radiation syndrome. Initial whole-body dose was estimated at 1.51 Gy (95% Confidence Interval: 1.40-1.61 Gy) using biological dosimetry. This work performed a physical dosimetric reconstruction to provide more detailed exposure information for clinical treatment, using sitting and standing posture phantoms constructed by adjusting the Chinese reference adult male polygon surface phantoms to the worker body. A 3D view of photon flux in the body and dose distribution of local tissue with isodose lines in his legs were displayed by THUDose, and the absorbed doses of organs were present. These results were compatible with clinical symptoms and analysis, and they were helpful in assisting in the planning of therapy and in alerting physicians of potential high-risk organs. The physical dosimetric reconstruction could provide more detailed information for clinical treatment in a radiological accident with respect to obtaining local dose estimates.
[Mh] Termos MeSH primário: Liberação Nociva de Radioativos
Radiometria/métodos
[Mh] Termos MeSH secundário: Adulto
China
Seres Humanos
Masculino
Exposição Ocupacional/análise
Imagens de Fantasmas
Fótons
Postura
Dose de Radiação
Proteção Radiológica
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171010
[Lr] Data última revisão:
171010
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170930
[St] Status:MEDLINE
[do] DOI:10.1097/HP.0000000000000711


  6 / 4119 MEDLINE  
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[PMID]:28614748
[Au] Autor:Herranz M; Idoeta R; Rozas S; Legarda F
[Ad] Endereço:Dpto. de Ingeniería Nuclear y Mecánica de Fluidos, Escuela de Ingeniería de Bilbao, Universidad del País Vasco UPV/EHU, Alda. Urquijo s/n, 48013 Bilbao, Spain.
[Ti] Título:Analysis of the use of the IAEA rapid method of Sr and Sr in milk for environmental monitoring.
[So] Source:J Environ Radioact;177:48-57, 2017 Oct.
[Is] ISSN:1879-1700
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Rapid methods that are used during nuclear accidents or incident situations must first be implemented and validated in radioactivity measurement laboratories, so they can be ready to provide quick answers to governments, regulatory organizations and people in such situations. As these accident situations are rare and the methods are thus not frequently used, the best way to achieve this is to use the same methods for both routine environmental monitoring and rapid or emergency situations. Before this can be done, however, an analysis of the conditions under which a rapid method could be effectively used in routine situations should be carried out. This work analyses the performance of the rapid method for the simultaneous determination of Sr and Sr in milk, published by the IAEA, and compares it with another, more conventional method used for routine environmental purposes. Through numerical calculations and considering different Sr and Sr activities, we also conducted a study to obtain the optimum values for determination parameters - such as sample mass, counting times, time lapse between measurements and background counting times - that will allow the use of the IAEA rapid method as a routine environmental one.
[Mh] Termos MeSH primário: Leite/química
Monitoramento de Radiação/métodos
Radioisótopos de Estrôncio/análise
[Mh] Termos MeSH secundário: Animais
Liberação Nociva de Radioativos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Strontium Radioisotopes)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170908
[Lr] Data última revisão:
170908
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170615
[St] Status:MEDLINE


  7 / 4119 MEDLINE  
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[PMID]:28562830
[Au] Autor:Rodrigues JVR; Pinto MM; Figueredo RMP; Lima H; Souto R; Sacchetim SC
[Ad] Endereço:Centro Universitário de Anápolis - UniEVANGÉLICA, GO - Brazil.
[Ti] Título:Systemic Arterial Hypertension in Patients Exposed to Cesium-137 in Goiânia-GO: Prevalence Study.
[So] Source:Arq Bras Cardiol;108(6):533-538, 2017.
[Is] ISSN:1678-4170
[Cp] País de publicação:Brazil
[La] Idioma:eng; por
[Ab] Resumo:Background:: Systemic Arterial Hypertension (SAH) in the Brazilian population, in populations not exposed to Césio-137, presents a prevalence of 28% nationwide. However, in the group of radioactivity victims, these values are unknown. Objective:: To analyze the prevalence of hypertension in patients exposed to Cesium-137 in Goiânia, enrolled in the Sistema de Monitoramento dos Radioacidentados (SISRAD) (Radioactivtity Victims Monitoring System) of the Centro de Assistência aos Radioacidentados (C.A.R.A) (Assistence Center for Radioactivity Victims). Methods:: This is a descriptive, observational cross-sectional epidemiological study carried out in Goiânia-Goiás, from August 2013 to October 2014, with a group of patients enrolled in the Sistema de Monitoramento dos Radioacidentados (SISRAD) of the Centro de Assistência a Radioacidentados (C.A.R.A.). A total of 102 radioactive patients were divided into two groups: group 1 with 40 and group 2 with 62 participants. A field survey was conducted with a closed and semi-structured questionnaire in which the following contexts were addressed: sociodemographic profile, life habits and personal background. A database was created using the Google Forms application from the Google Web technologies company. The duly collected and stored data were imported and analyzed in the statistical software SPSS, version 21. Results:: The prevalence of SAH reached a total of 25% (12 individuals) of the 48 interviewees, 50% of women (24) and 50% of men (24), of which 22.9% (11) of the radioactivity victims revealed to be smokers. Conclusion:: The prevalence of SAH in the radioactivity victims population is similar to that of the population in general. Fundamentos:: A Hipertensão Arterial Sistêmica (HAS) na população brasileira, em populações não expostas ao Césio-137, apresenta prevalência de 28% em âmbito nacional. Porém, no grupo de radioacidentados, esses valores são desconhecidos. Objetivo:: Analisar a prevalência da HAS em pacientes expostos ao Césio-137 ocorrido em Goiânia, cadastrados no Sistema de Monitoramento dos Radioacidentados (SISRAD) do Centro de Assistência aos Radioacidentados (C.A.R.A). Métodos:: Estudo epidemiológico do tipo descritivo, observacional de caráter transversal realizado em Goiânia-Goiás, no período de agosto de 2013 a outubro de 2014, com grupo de pacientes cadastrados no Sistema de Monitoramento dos Radioacidentados (SISRAD) do Centro de Assistência aos Radioacidentados (C.A.R.A). Participaram da pesquisa 48 radioacidentados de um total de 102 que foram subdivididos em dois grupos: grupo 1 com 40 e o grupo 2 com 62 participantes. Realizou-se uma pesquisa de campo com questionário fechado e semi-estruturado em que foram abordados os seguintes contextos: perfil sociodemográfico, hábitos de vida e antecedentes pessoais. Criou-se um banco de dados utilizando-se o aplicativo Google Forms, da empresa de tecnologias na Web Google. Os dados devidamente coletados e armazenados foram importados e analisados no software estatístico SPSS, versão 21. Resultados:: Dos 48 entrevistados a prevalência de HAS atingiu um total 25% deles (12 indivíduos), sendo 50% de mulheres (24) e 50% de homens (24), dentre estes, 22,9% (11) dos radioacidentados revelaram ser tabagistas. Conclusão:: A prevalência de HAS na população de radioacidentados se manifesta de forma semelhante ao da população em geral.
[Mh] Termos MeSH primário: Radioisótopos de Césio/toxicidade
Hipertensão/etiologia
Liberação Nociva de Radioativos
[Mh] Termos MeSH secundário: Adolescente
Adulto
Idoso
Idoso de 80 Anos ou mais
Brasil/epidemiologia
Estudos Transversais
Feminino
Seres Humanos
Hipertensão/epidemiologia
Masculino
Meia-Idade
Prevalência
Fatores de Risco
Fatores Socioeconômicos
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; OBSERVATIONAL STUDY
[Nm] Nome de substância:
0 (Cesium Radioisotopes)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171004
[Lr] Data última revisão:
171004
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170601
[St] Status:MEDLINE


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[PMID]:28555940
[Au] Autor:Goldenberg D; Russo M; Houser K; Crist H; Derr JB; Walter V; Warrick JI; Sheldon KE; Broach J; Bann DV
[Ad] Endereço:Department of Surgery, Pennsylvania State University, College of Medicine, Hershey, Pennsylvania, U.S.A.
[Ti] Título:Altered molecular profile in thyroid cancers from patients affected by the Three Mile Island nuclear accident.
[So] Source:Laryngoscope;127 Suppl 3:S1-S9, 2017 Jul.
[Is] ISSN:1531-4995
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:OBJECTIVES/HYPOTHESIS: In 1979, Three Mile Island (TMI) nuclear power plant experienced a partial meltdown with release of radioactive material. The effects of the accident on thyroid cancer (TC) in the surrounding population remain unclear. Radiation-induced TCs have a lower incidence of single nucleotide oncogenic driver mutations and higher incidence of gene fusions. We used next generation sequencing (NGS) to identify molecular signatures of radiation-induced TC in a cohort of TC patients residing near TMI during the time of the accident. STUDY DESIGN: Case series. METHODS: We identified 44 patients who developed papillary thyroid carcinoma between 1974 and 2014. Patients who developed TC between 1984 and 1996 were at risk for radiation-induced TC, patients who developed TC before 1984 or after 1996 were the control group. We used targeted NGS of paired tumor and normal tissue from each patient to identify single nucleotide oncogenic driver mutations. Oncogenic gene fusions were identified using quantitative reverse transcription polymerase chain reaction. RESULTS: We identified 15 patients in the at-risk group and 29 patients in the control group. BRAF mutations were identified in 53% patients in the at-risk group and 83% patients in the control group. The proportion of patients with BRAF mutations in the at-risk group was significantly lower than predicted by the The Cancer Genome Atlas cohort. Gene fusion or somatic copy number alteration drivers were identified in 33% tumors in the at-risk group and 14% of tumors in the control group. CONCLUSIONS: Findings were consistent with observations from other radiation-exposed populations. These data raise the possibility that radiation released from TMI may have altered the molecular profile of TC in the population surrounding TMI. LEVEL OF EVIDENCE: 4 Laryngoscope, 127:S1-S9, 2017.
[Mh] Termos MeSH primário: Desastres
Neoplasias Induzidas por Radiação/genética
Centrais Nucleares
Proteínas Proto-Oncogênicas B-raf/genética
Liberação Nociva de Radioativos
Neoplasias da Glândula Tireoide/genética
[Mh] Termos MeSH secundário: Adulto
Estudos de Casos e Controles
Feminino
Sequenciamento de Nucleotídeos em Larga Escala
Seres Humanos
Masculino
Meia-Idade
Mutação
Neoplasias Induzidas por Radiação/etiologia
Pennsylvania
Reação em Cadeia da Polimerase Via Transcriptase Reversa
Neoplasias da Glândula Tireoide/etiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
EC 2.7.11.1 (BRAF protein, human); EC 2.7.11.1 (Proto-Oncogene Proteins B-raf)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170810
[Lr] Data última revisão:
170810
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170531
[St] Status:MEDLINE
[do] DOI:10.1002/lary.26687


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[PMID]:28532210
[Au] Autor:Boice JD
[Ad] Endereço:a National Council on Radiation Protection and Measurements , Bethesda , MD , USA.
[Ti] Título:The linear nonthreshold (LNT) model as used in radiation protection: an NCRP update.
[So] Source:Int J Radiat Biol;93(10):1079-1092, 2017 Oct.
[Is] ISSN:1362-3095
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:PURPOSE: The linear nonthreshold (LNT) model has been used in radiation protection for over 40 years and has been hotly debated. It relies heavily on human epidemiology, with support from radiobiology. The scientific underpinnings include NCRP Report No. 136 ('Evaluation of the Linear-Nonthreshold Dose-Response Model for Ionizing Radiation'), UNSCEAR 2000, ICRP Publication 99 (2004) and the National Academies BEIR VII Report (2006). NCRP Scientific Committee 1-25 is reviewing recent epidemiologic studies focusing on dose-response models, including threshold, and the relevance to radiation protection. METHODS AND MATERIALS: Recent studies after the BEIR VII Report are being critically reviewed and include atomic-bomb survivors, Mayak workers, atomic veterans, populations on the Techa River, U.S. radiological technologists, the U.S. Million Person Study, international workers (INWORKS), Chernobyl cleanup workers, children given computerized tomography scans, and tuberculosis-fluoroscopy patients. Methodologic limitations, dose uncertainties and statistical approaches (and modeling assumptions) are being systematically evaluated. RESULTS: The review of studies continues and will be published as an NCRP commentary in 2017. Most studies reviewed to date are consistent with a straight-line dose response but there are a few exceptions. In the past, the scientific consensus process has worked in providing practical and prudent guidance. So pragmatic judgment is anticipated. The evaluations are ongoing and the extensive NCRP review process has just begun, so no decisions or recommendations are in stone. CONCLUSIONS: The march of science requires a constant assessment of emerging evidence to provide an optimum, though not necessarily perfect, approach to radiation protection. Alternatives to the LNT model may be forthcoming, e.g. an approach that couples the best epidemiology with biologically-based models of carcinogenesis, focusing on chronic (not acute) exposure circumstances. Currently for the practical purposes of radiation protection, the LNT hypothesis reigns supreme as the best of the rest, but new epidemiology and radiobiology might change these conclusions. Stay tuned!
[Mh] Termos MeSH primário: Proteção Radiológica
Medição de Risco/métodos
[Mh] Termos MeSH secundário: Animais
Seres Humanos
Modelos Lineares
Neoplasias Induzidas por Radiação/etiologia
Armas Nucleares
Liberação Nociva de Radioativos
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171010
[Lr] Data última revisão:
171010
[Sb] Subgrupo de revista:IM; S
[Da] Data de entrada para processamento:170524
[St] Status:MEDLINE
[do] DOI:10.1080/09553002.2017.1328750


  10 / 4119 MEDLINE  
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[PMID]:28441535
[Au] Autor:Dowdall M; Bondar Y; Skipperud L; Zabrotski V; Pettersen MN; Selnæs ØG; Brown JE
[Ad] Endereço:Norwegian Radiation Protection Authority, Østerås, Norway. Electronic address: mark.dowdall@nrpa.no.
[Ti] Título:Investigation of the vertical distribution and speciation of Cs in soil profiles at burnt and unburnt forest sites in the Belarusian Exclusion Zone.
[So] Source:J Environ Radioact;175-176:60-69, 2017 Sep.
[Is] ISSN:1879-1700
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The effects of fire events on contaminant radionuclides within soils of the Belarusian Exclusion Zone were investigated. A number of cores were taken from locations known to have been subject to fire events in the past as well as a series of cores from nearby unburnt locations. Both burnt and unburnt cores were analyzed for contaminant radionuclides as well as a range of relevant soil parameters. The distribution of Cs between various fractions (reversibly bound, irreversibly bound and insoluble) was analyzed. Results indicate no evidence of enhancement or enrichment of radionuclides within the soil column although this does not negate the possibility that such effects were evident at some point in the past, the fire events at two of the sites having occurred almost ten years earlier. Evidence was present of a persistent effect on how Cs was distributed between different fractions of the soil, primarily in relation to the proportions associated with oxides of Fe and Mn and organic matter. The results of the study appear to indicate that the long-term effects of a forest fire on contaminant Cs within the soil column are expressed through changes in the physico-chemical forms of the nuclide to a larger extent than simple redistribution of the contaminant within the soil column.
[Mh] Termos MeSH primário: Radioisótopos de Césio/análise
Florestas
Liberação Nociva de Radioativos
Poluentes Radioativos do Solo/análise
Solo/química
[Mh] Termos MeSH secundário: Fogo
Monitoramento de Radiação
República da Bielorrússia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Cesium Radioisotopes); 0 (Soil); 0 (Soil Pollutants, Radioactive)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170426
[St] Status:MEDLINE



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BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde