BALF Cytology.

Values are means ± SE (n = 6 per group);apbpcpdpAM: alveolar macrophages. Exposure to NO2 alone did not change the profile of BAL cytology. OVA-sensitization significantly increased BAL eosinophil counts. CNP exposure by itself increased the number of neutrophils, without a significant difference between Air and NO2-exposed animals. Exposure to NO2 in OVA-sensitized animals significantly increased lymphocyte counts and tended to elevate BALF eosinophilia.