Calculated mean 24 hour integrated personal exposure (SD) for different groups for carbon monoxide
| Group | Weekday exposure (ppm.h) | Weekend day exposure (ppm.h) |
|---|---|---|
| *Limited data set. | ||
| Young | 19.7 (3.2) | 20.8 (5.0) |
| Young with asthma* | 24.9 (1.8) | 23.4 (11.0) |
| Elderly | 22.8 (3.6) | 22.6 (3.4) |
| Severe asthma | 24.2 (8.9) | 22.6 (9.1) |
| COPD | 21.2 (5.5) | 19.9 (4.6) |
| LVF | 24.2 (8.1) | 24.1 (10.9) |
| Healthy | 22.6 (3.9) | 19.5 (3.1) |