Analysis shows radionuclide leaching rates in lung fluid and HCl, indicating risks from aerosol exposure.
The solubility of the aerosol "hot" particles selected at Pripyat region in 1987 in simulated lung fluid (SLF - Gamble's or Pinger's solutions) and 0.1 M HCl was studied statistically. The result showed that leaching of the radionuclides in SLF decrease in line 137Cs > 90Sr >> 239+240Pu ≥ 241Am and in 0.1 M HCl 90Sr > 241Am >> 137Cs ≥ 239+240Pu. In dissolution experiments with 0.1 M HCl estimated the soluble portion of the 90Sr and 241Am as 1.4 - 21.0 and 0.9 - 17.0 % correspondingly. In accordance with the size of the "hot" particles 0.01 - 0.4 % 241Am and 0.02 - 0.3 % 239+240Pu were dissolved in the SLF during seven days.
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Garger et al. (2001) studied this question.
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