Table 2 BAL fluid cell composition, 11 and 28–29 days after termination of inhalation exposure to Printex 90 for 15 days
| Â | Â | Absolute cell numbers | ||
|---|---|---|---|---|
Exposure level of Printex 90 | Control | 3.59Â mg/m3 | 33.87Â mg/m3 | |
11Â days | N | 4 | 4 | 5 |
|  | Neutrophils (×105) | 0.4 ± 0.4 | 0.4 ± 0.5 | 1.4 ± 2.6 |
Macrophages (×105) | 8.0 ± 2.7 | 7.6 ± 8.9 | 7.0 ± 4.2 | |
Lymphocytes (× 103) | 3.1 ± 4.2 | 3.1 ± 3.9 | 0.8 ± 1.7 | |
Total BAL cells (×105) | 9.2 ± 2.8 | 8.6 ± 0.5 | 11.3 ± 3.5 | |
Epithelial cells (×105) | 0.7 ± 0.4 | 0.6 ± 0.3 | 0.7 ± 0.5 | |
Dead cells (×105) | 0.9 ± 0.5 | 1.1 ± 0.8 | 1.2 ± 0.4 | |
28–29 days | N | 5 | 9 | 13 |
|  | Neutrophils (×105) | 1.5 ± 1.8 | 1.0 ± 0.9 | 1.2 ± 1.0 |
Macrophages (×105) | 13.0 ± 2.7 | 11.9 ± 4.1 | 9.8 ± 1.6 | |
Lymphocytes (×103) | 15.2 ± 16 | 12.5 ± 6.5 | 6.4 ± 6.2 | |
Total BAL cells (×105) | 15.4 ± 4.6 | 13.8 ± 4.1 | 11.7 ± 2.0 | |
Epithelial cells (×105) | 0.8 ± 0.4 | 0.8 ± 0.3 | 0.6 ± 0.3 | |
Dead cells (×105) | 1.3 ± 1.1 | 1.4 ± 0.7 | 1.1 ± 0.8 | |