Bruit de fond du tritium en milieu terrestre

Abstract

Résumé -Abstract -Background levels of tritium in the terrestrial environment. Samples of tree leaves and terrestrial foodstuffs, obtained from French non-influenced zones were measured for tissue free water tritium (TFWT) and organically bound tritium (OBT) content, over the period [2007][2008][2009][2010][2011][2012]. The background level determined from these data does not vary significantly over the 5 years of the survey and displays a mean value of 1.4 ± 1.2 Bq/L for both tritium forms.