Soluble inflammatory mediators in bronchial wash(BW) and bronchoalveolar lavage (BAL) 18 h after a 2-h exposure to air and diesel exhaust (DE)
| Inflammatory mediators | Air | DE | p-value |
| BW IL-6 pg·mL−1 | 4.0 (1.4–4.9) | 4.9 (2.6–7.0) | 0.06 |
| BAL IL-6 pg·mL−1 | 1.3 (0.8–2.0) | 1.0 (0.9–1.7) | 0.28 |
| BW IL-8 pg·mL−1 | 35 (15–65) | 45 (35–140) | 0.01 |
| BAL IL-8 pg·mL−1 | 0.0 (0.0–0.0) | 0.0 (0.0–0.0) | 0.25 |
| BW MPO µg·L−1 | 5.1 (3.2–9.9) | 11.2 (4.3–20.7) | 0.03 |
| BAL MPO µg·L−1 | 0.0 (0.0–1.4) | 1.7 (0.0–2.1) | 0.11 |
Data are presented as median (interquartile range). IL: interleukin; MPO: myeloperoxidase. n = 15.