skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Analysis of the Body Distribution of Absorbed Dose in the Organs of Three Species of Fish from Sepetiba Bay

Abstract

The body distribution of Polonium-210 in three fishes from the Sepetiba Bay (Macrodon ancylodon, Micropogonias furnieri and Mugil curema) has been studied under the approach of the Department of Energy of the United States of America (DOE) that set the limit of absorbed dose rate in biota equal to 3.5x10{sup 3} {mu}Gy/y, and that also established the relation between dose rate (D) and radionuclide concentration (c) on a fish muscle fresh weight basis, as follows: D = 5.05 ExNxC, assuming that the radionuclide distribution is homogenous among organs. Two hypotheses were tested here, using statistical tools: 1) is the body distribution of absorbed dose homogenous among organs? and 2) is the body distribution of absorbed dose identical among studied fishes? It was concluded, as expected, that the distribution among organs is heterogeneous; but, unexpectedly, that the three fishes display identical body distribution pattern, although they belong to different trophic levels. Hence, concerning absorbed dose calculation, the statement that data distribution is homogenous must be understood merely as an approximation, at least in the case of Polonium-210.

Authors:
 [1];  [2];  [3];  [2];  [4];  [5]
  1. Coordenacao de Protecao Radiologica, Unidade de Tratamento de Minerios, Caixa Postal 961, CEP 37701-970, Pocos de Caldas, MG, BR Industrias Nucleares do Brasil (Brazil)
  2. (Brazil)
  3. Universidade Federal Fluminense, Programa de Pos-graduacao em Ciencia Ambiental, Instituto de Geociencias, av. Litoranea s/no, Boa Viagem, 24210-340 Niteroi, RJ Caixa Postal 107.092, CEP 24360-970, Niteroi, RJ (Brazil)
  4. Universidade Federal Fluminense, Departamento de Biologia Geral. Laboratorio de Radiobiologia e Radiometria LARARA, Caixa Postal 100.436, CEP 24000-970, Niteroi, RJ (Brazil)
  5. Coordenacao de Protecao Radiologica, Unidade de Concentrado de Uranio, Caixa Postal 7, CEP 46.400-000 Caetite, Bahia, Brasil Industrias Nucleares do Brasil (Brazil)
Publication Date:
OSTI Identifier:
21152482
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1034; Journal Issue: 1; Conference: NRE-VIII: 8. International symposium on the natural radiation environment, Buzios, RJ (Brazil), 7-12 Oct 2007; Other Information: DOI: 10.1063/1.2991253; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
61 RADIATION PROTECTION AND DOSIMETRY; 54 ENVIRONMENTAL SCIENCES; BRAZIL; DISTRIBUTION; DOSE RATES; DOSIMETRY; FISHES; MUSCLES; NATURAL RADIOACTIVITY; ORGANS; POLONIUM 210; RADIATION DOSES; RADIONUCLIDE KINETICS

Citation Formats

Pereira, Wagner de S, Universidade Federal Fluminense, Programa de Pos-graduacao em Biologia Marinha, Kelecom, Alphonse, Universidade Federal Fluminense, Departamento de Biologia Geral. Laboratorio de Radiobiologia e Radiometria LARARA, Caixa Postal 100.436, CEP 24000-970, Niteroi, RJ, Santos Gouvea, Rita de Cassia dos, and Azevedo Py Junior, Delcy de. Analysis of the Body Distribution of Absorbed Dose in the Organs of Three Species of Fish from Sepetiba Bay. United States: N. p., 2008. Web. doi:10.1063/1.2991253.
Pereira, Wagner de S, Universidade Federal Fluminense, Programa de Pos-graduacao em Biologia Marinha, Kelecom, Alphonse, Universidade Federal Fluminense, Departamento de Biologia Geral. Laboratorio de Radiobiologia e Radiometria LARARA, Caixa Postal 100.436, CEP 24000-970, Niteroi, RJ, Santos Gouvea, Rita de Cassia dos, & Azevedo Py Junior, Delcy de. Analysis of the Body Distribution of Absorbed Dose in the Organs of Three Species of Fish from Sepetiba Bay. United States. doi:10.1063/1.2991253.
Pereira, Wagner de S, Universidade Federal Fluminense, Programa de Pos-graduacao em Biologia Marinha, Kelecom, Alphonse, Universidade Federal Fluminense, Departamento de Biologia Geral. Laboratorio de Radiobiologia e Radiometria LARARA, Caixa Postal 100.436, CEP 24000-970, Niteroi, RJ, Santos Gouvea, Rita de Cassia dos, and Azevedo Py Junior, Delcy de. Thu . "Analysis of the Body Distribution of Absorbed Dose in the Organs of Three Species of Fish from Sepetiba Bay". United States. doi:10.1063/1.2991253.
@article{osti_21152482,
title = {Analysis of the Body Distribution of Absorbed Dose in the Organs of Three Species of Fish from Sepetiba Bay},
author = {Pereira, Wagner de S and Universidade Federal Fluminense, Programa de Pos-graduacao em Biologia Marinha and Kelecom, Alphonse and Universidade Federal Fluminense, Departamento de Biologia Geral. Laboratorio de Radiobiologia e Radiometria LARARA, Caixa Postal 100.436, CEP 24000-970, Niteroi, RJ and Santos Gouvea, Rita de Cassia dos and Azevedo Py Junior, Delcy de},
abstractNote = {The body distribution of Polonium-210 in three fishes from the Sepetiba Bay (Macrodon ancylodon, Micropogonias furnieri and Mugil curema) has been studied under the approach of the Department of Energy of the United States of America (DOE) that set the limit of absorbed dose rate in biota equal to 3.5x10{sup 3} {mu}Gy/y, and that also established the relation between dose rate (D) and radionuclide concentration (c) on a fish muscle fresh weight basis, as follows: D = 5.05 ExNxC, assuming that the radionuclide distribution is homogenous among organs. Two hypotheses were tested here, using statistical tools: 1) is the body distribution of absorbed dose homogenous among organs? and 2) is the body distribution of absorbed dose identical among studied fishes? It was concluded, as expected, that the distribution among organs is heterogeneous; but, unexpectedly, that the three fishes display identical body distribution pattern, although they belong to different trophic levels. Hence, concerning absorbed dose calculation, the statement that data distribution is homogenous must be understood merely as an approximation, at least in the case of Polonium-210.},
doi = {10.1063/1.2991253},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1034,
place = {United States},
year = {Thu Aug 07 00:00:00 EDT 2008},
month = {Thu Aug 07 00:00:00 EDT 2008}
}