Table 2 Haematological effects of exposure to wood smoke and filtered air
From: Effect of wood smoke exposure on vascular function and thrombus formation in healthy fire fighters
| Â | Â | Filtered air | Wood smoke | P value1 |
|---|---|---|---|---|
Carboxyhaemoglobin, % | Baseline | 0.9 ± 0.0 | 0.9 ± 0.0 | <0.001 |
2 hours | 0.8 ± 0.0 | 1.3 ± 0.0* | ||
24 hours | 0.8 ± 0.0 | 0.8 ± 0.0 | ||
Leucocytes × 10 9 cells/L | Baseline | 5.5 ± 0.4 | 5.6 ± 0.4 | 0.22 |
2 hours | 6.1 ± 0.3 | 6.4 ± 0.4 | ||
6 hours | 6.5 ± 0.3 | 6.9 ± 0.4 | ||
24 hours | 5.4 ± 0.3 | 5.6 ± 0.4 | ||
Lymphocytes × 10 9 cells/L | Baseline | 2.0 ± 0.2 | 2.0 ± 0.2 | 0.11 |
2 hours | 1.9 ± 0.1 | 1.8 ± 0.1 | ||
6 hours | 2.0 ± 0.1 | 2.1 ± 0.1 | ||
24 hours | 2.0 ± 0.2 | 2.0 ± 0.2 | ||
Neutrophils × 10 9 cells/L** | Baseline | 2.8 ± 0.3 | 2.9 ± 0.3 | 0.20 |
2 hours | 3.6 ± 0.3 | 3.9 ± 0.4 | ||
6 hours | 3.8 ± 0.3 | 4.1 ± 0.3 | ||
24 hours | 2.8 ± 0.2 | 3.0 ± 0.3 | ||
Platelets × 10 9 cells/L** | Baseline | 225 ± 6 | 229 ± 7 | 0.07 |
2 hours | 212 ± 6 | 219 ± 7 | ||
6 hours | 205 ± 5 | 203 ± 9 | ||
24 hours | 225 ± 7 | 234 ± 6 |