Distribution of .sup.210Po in body organs of bigeye scad and greater lizardfish species at Binh Thuan, Vietnam

.sup.210Po activity was investigated in the eleven organs of two marine fish species, bigeye scad and greater lizardfish at Binh Thuan, Vietnam by alpha-spectrometry. The .sup.210Po concentration significantly varied among organs, where the highest .sup.210Po activity of 278 and 512 Bq/kg.w.wt were observed in intestine and lowest of 12.9 and 2.8 Bq/kg.w.wt in muscle tissue of those fish species organs, respectively. The .sup.210Po bioconcentration factor (BCF) ranged from 9.3 x 10.sup.3 to 20 x 10.sup.4 for bigeye scad and from 2.0 x 10.sup.3 to 37 x 10.sup.4 for greater lizardfish. The BCF and annual committed effective dose values showed a high radiation potential and higher than the limit value of 1000 [mu]Sv/y.