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

210 Po 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 210 Po concentration significantly varied among organs, where the highest 210 Po 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 210 Po bioconcentration factor (BCF) ranged from 9.3 × 10 3 to 20 × 10 4 for bigeye scad and from 2.0 × 10 3 to 37 × 10 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 μSv/y.