Figure 6.

Mn K-edge XANES spectra (in Figure 5), located in the bronchiole cavity (Shot1) and located in the damaged tissue of the alveolus (Shot2), 6 h after ⁵⁶Mn(2×) internal exposure. The Mn K-edge XANES spectra both of Shot1 and Shot2 were different from that of Mn reagent and MnO_2, but similar to that of MnCO₃ solution. The red dotted lines indicate locations of peaks observed in MnCO₃ solution. The special similarities indicate that Mn is not in the Mn⁴⁺ (Mn reagent, MnO₂), but is Mn²⁺(MnCO₃).