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LA RADIOACTIVITE ARTIFICIELLE DES SEDIMENTS TRANSPORTES PAR 
LE DANUBE DANS LA MER NOIRE

O. Serbanescu 
Institut Roumain de Recherches Marines - Constanta

A. Iorgulescu 
L'Institut de Physique Atomique Bucuresti

Abstract 
The surface sediments collexted in 1969 and 1970 from the Danube(up-
stream its mouths) and from the sea, at a depth of 8 m showed a sig- 
nificant, relatively intense betta and gamma activity. The spectro- 
metric analysis showed the presence of the following radionuclides:
105Ru + 105Rh, 54Mn, 65Zn, 60Co, 144Ce + 144Pr.