Figure 2.

Effects of Cl₂ on airway histology. Twenty-four hours following Cl₂ exposure lungs were collected, paraffin embedded and lung sections cut (5 μM). Sections were then stained with hematoxylin and eosin. Representative pictures of airway sections from control mice (A) mice treated with 100 (B), or 400 ppm (C) Cl₂. Total epithelial cells were quantified in each airway and corrected for P_BM and showed no difference between control and 100 ppm, but significantly fewer epithelial cells at 400 ppm (D). Epithelial cell height was also calculated and showed that mice given 100 ppm and 400 ppm had shorter epithelial cells than control (E).