Intercomparison exercise for radionuclides in mediterranean mussel ( iaea-437 )

An intercomparison exercise for natural and anthropogenic radionuclides was organized using a material prepared from the soft tissues of mussels collected in the vicinity of the Grand Rhone river mouth. Seven out of the 15 laboratories participating in the CIESM Mediterranean Mussel Watch Program reported results. Based on these results and on those received from 9 additional laboratories worldwide, recommended values were derived for K, U and Pu and information values for Cs, Pb(Po), Ra, Th, Th, U, U and Am. Further work is underway for the certification of this intercomparison material as IAEA Reference Material.