Figure 9

Light micrographs of H&E-stained sections from lung of C57BL/6 mice 28 days following exposure to PBS (A), CNF (B), Crocidolite Asbestos (C) or SWCNT (D). Mice were exposed via pharyngeal aspiration to 120 μg/mouse CNF or Asbestos, or 40 μg/mouse SWCNT. Animals were sacrificed 28 days post exposure.