Figure 3. Neutrophil responses in the proximal (bronchial wash) and distal (bronchoalveolar lavage) airway lumen, as well as the epithelium and submucosa of the bronchial airway in healthy subjects exposed to air and ozone.

Data are given as means with standard deviation and comparisons of the post air and ozone neutrophil numbers at each time point were performed using a paired t-test.