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Tritium levels in milk in the vicinity of chronic tritium releases.
Le Goff, P; Guétat, Ph; Vichot, L; Leconte, N; Badot, P M; Gaucheron, F; Fromm, M.
Afiliación
  • Le Goff P; CEA Valduc, 21120 Is-sur-Tille, France. Electronic address: pierre.legoff@cea.fr.
  • Guétat P; CEA Valduc, 21120 Is-sur-Tille, France; CEA/HC, France.
  • Vichot L; CEA Valduc, 21120 Is-sur-Tille, France.
  • Leconte N; Agrocampus Ouest, UMR 1253, Science et Technologie du Lait et de l'œuf, 65 rue de Saint Brieuc, 35042 Rennes, France.
  • Badot PM; UMR CNRS 6249 Chrono-Environnement, Université de Franche-Comté, 16 route de Gray, 25030 Besançon Cedex, France.
  • Gaucheron F; Agrocampus Ouest, UMR 1253, Science et Technologie du Lait et de l'œuf, 65 rue de Saint Brieuc, 35042 Rennes, France.
  • Fromm M; UMR CNRS 6249 Chrono-Environnement, Université de Franche-Comté, 16 route de Gray, 25030 Besançon Cedex, France.
J Environ Radioact ; 151 Pt 1: 282-292, 2016 Jan.
Article en En | MEDLINE | ID: mdl-26551587
Tritium is the radioactive isotope of hydrogen. It can be integrated into most biological molecules. Even though its radiotoxicity is weak, the effects of tritium can be increased following concentration in critical compartments of living organisms. For a better understanding of tritium circulation in the environment and to highlight transfer constants between compartments, we studied the tritiation of different agricultural matrices chronically exposed to tritium. Milk is one of the most frequently monitored foodstuffs in the vicinity of points known for chronic release of radionuclides firstly because dairy products find their way into most homes but also because it integrates deposition over large areas at a local scale. It is a food which contains all the main nutrients, especially proteins, carbohydrates and lipids. We thus studied the tritium levels of milk in chronic exposure conditions by comparing the tritiation of the main hydrogenated components of milk, first, component by component, then, sample by sample. Significant correlations were found between the specific activities of drinking water and free water of milk as well as between the tritium levels of cattle feed dry matter and of the main organic components of milk. Our findings stress the importance of the metabolism on the distribution of tritium in the different compartments. Overall, dilution of hydrogen in the environmental compartments was found to play an important role dimming possible isotopic effects even in a food chain chronically exposed to tritium.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Radiactivos / Tritio / Monitoreo de Radiación / Leche Límite: Animals País/Región como asunto: Europa Idioma: En Revista: J Environ Radioact Asunto de la revista: SAUDE AMBIENTAL Año: 2016 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Radiactivos / Tritio / Monitoreo de Radiación / Leche Límite: Animals País/Región como asunto: Europa Idioma: En Revista: J Environ Radioact Asunto de la revista: SAUDE AMBIENTAL Año: 2016 Tipo del documento: Article Pais de publicación: Reino Unido