Abstract
Instrumental neutron activation analysis (INAA) was applied to determine elemental concentrations in some fish species collected frome the Romanian sector of Danube River at km 1049, near the entrance in Romania (Carassius auratus gibelio, Ctenopharingodon idella, Rutilus rutilus and Silurus glanis) and km 630 (Acipenser ruthenus). Concentration values of 32 elements (Ag, As, Au, Ba, Br, Ca, Ce, Co, Cr, Cs, Eu, Fe, Hf, Hg, K, La, Lu, Na, Ni, Rb, Sb, Sc, Se, Sm, Sr, Ta, Tb, Th, U, W, Zn and Zr) in calcined fish samples were obtained based on long half-life radionuclides. Bioaccumulation factors (BAF) in fresh fish relative to Danube water (km 1049) were assessed and compared with literature data.
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