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14C Sources and Distribution in the Vicinity of La Hague Nuclear Reprocessing Plant: Part I—Terrestrial Environment

  • M Fontugne (a1), D Maro (a2), Y Baron (a3), C Hatté (a1), D Hebert and E Douville...

Abstract

COGEMA-La Hague nuclear reprocessing plant in the Cotentin Peninsula (northwest France) releases in the atmosphere about 19 TBq.yr-1 of radiocarbon. Three experiments in a terrestrial environment with sampling of a bio-indicator like furze were performed in 1997, 1998, and 1999, and additional air samples in the chimney plume were measured. Results presented here establish the 14C distribution in the La Hague environment and suggest that a part of the 14C content in the vegetation near the coast results from a 14CO2 degassing of seawater supplied with the liquid waste from the nuclear plant.

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Copyright

Corresponding author

Corresponding author. Email: Michel.Fontugne@lsce.cnrs-gif.fr.

References

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COGEMA. 2000. Surveillance trimestrielle de l'environnement de la Hague. Rapport Hag. 055000120013. 84 p.
Délibrias, G. 1985. Le carbone 14. In: Roth, E, Poty, B, editors. Méthodes de Datation par les Phénomènes Nucléaires Naturels: Application. Paris: Coll. CEA, Masson. p 421–58.
Fontugne, M, Maro, D, Baron, Y, Hatté, C, Hébert, D, Douville, E. 2002. Identification of sources and distribution of radiocarbon in the vicinity of La Hague nuclear reprocessing plant. Radioprotection 37(C1):1271–6.
Keir, RS, Rehder, G, Frankignoulle, M. 2001. Partial pressure and air-sea flux of CO2 in the Northeast Atlantic during September 1995. Deep Sea Research Part II: Topical Studies in Oceanography 48(14–15):3179–89.
Maro, D, Crabol, B, Germain, P, Baron, Y, Hebert, D, Bouisset, P. 2001. A study of the near field atmospheric dispersion of emission at height: comparison of Gaussian plume models (Doury, Pasquill-Briggs, Caire) with krypton-85 measurements taken around La Hague nuclear reprocessing plant. Radioprotection 37(C1): 1277–82.
Maro, D, Fontugne, M, Hatté, C, Hebert, D, Rozet, M. 2004. Source and distribution of radiocarbon in the vicinity of La Hague nuclear reprocessing plant: part II—marine environment. Radiocarbon, these proceedings.

14C Sources and Distribution in the Vicinity of La Hague Nuclear Reprocessing Plant: Part I—Terrestrial Environment

  • M Fontugne (a1), D Maro (a2), Y Baron (a3), C Hatté (a1), D Hebert and E Douville...

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