Evidence of high natural radiation doses in certain mid-water oceanic organisms.
Concentrations of the naturally occurring radioactive nuclide polonium-210 were determined in mid-water crustaceans and fish from depths to 1500 meters. Unusually high levels were found in certain categories of organisms, indicating that these organisms were exposed to a particularly high natural radiation dose. The results have implications in terms of possible radiation effects, as a baseline against which artificial radioactive nuclides can be compared, and as a potential technique for studying the feeding behavior of mid-water organisms.
D000818:Animals; D003445:Crustacea / Q000502:physiology*; D005399:Fishes / Q000502:physiology*; D007854:Lead / Q000032:analysis*; D011059:Polonium / Q000032:analysis*; D011829:Radiation Dosage; D011868:Radioisotopes / Q000032:analysis*; D012623:Seawater; D013045:Species Specificity
D011868:Radioisotopes; D007854:Lead; D011059:Polonium