Fig. 1
Bronchoalveolar lavage cytology. Results expressed as mean fold-effect ± SEM. a. Total cell count. 3-way ANOVA, Ozone x Recovery, p < 0.001. Tukey, *0 vs 0.8 ppm O3 within 24 h recovery, and 0 h vs 24 h recovery within 0 and 0.8 ppm O3, p < 0.05. 2-way ANOVA, Ozone, p < 0.001. Tukey, #0 and 0.4 vs 0.8 ppm O3, p < 0.05. b. Total macrophages count. 3-way ANOVA, Ozone × Recovery, p < 0.001. *0 vs 0.8 ppm O3 within 24 h. 2-way ANOVA, Ozone × EHC-93, p = 0.024. Tukey summarized by lines (e.g. 0 vs 5 mg/m3 EHC-93 within 0 ppm O3), p < 0.05. c. Total neutrophils count. 3-way ANOVA, Ozone × Recovery, p = 0.011 and Ozone × EHC-93, p = 0.030. Tukey, *0 vs 0.8 ppm O3 within 24 and 0 h vs 24 h within 0.8 ppm O3. d. Total mature macrophages. 3-way ANOVA, Ozone × Recovery, p = 0.029. Tukey, 0 vs 0.8 ppm O3 within 24 h. For detailed statistics, refer to Additional files 4 & 6. (Sample size, n = 8/air pollutant exposure group; n = 17/air control group)