Table 3.
Mean methaemoglobin (MetHb) and pack cell volume (PCV) based on route and self-reported duration of exposure of AM to Petrol (PMS) fumes.
| Route of exposure | Estimated (self-reported) daily frequency of exposure | |||
|---|---|---|---|---|
| <1 time | 1-2 times | 3-4 times | ≥5 times | |
|
| ||||
| Mean MetHb (%) | ||||
|
| ||||
| Aspiration of petrol by mouth (N = 32) | 0.0 (n = 0) | 8.9 ± 2.7 (n = 23) | 10.2 ± 2.6*(n = 9) | 0.0 (n = 0) |
| Washing of hands with pPetrol (N = 50) | 0.0 (n = 0) | 10.6 ± 2.6 (n = 20) | 11.1 ± 3.8 (n = 16) | 13.6 ± 5.6*(n = 14) |
|
| ||||
| Mean pack cell volume (PCV) | ||||
|
| ||||
| Aspiration of petrol by mouth (N = 32) | 0.0 (n = 0) | 31.4 ± 4.9 (n = 23) | 30.4 ± 4.6 (n = 9) | 0.0 (n = 0) |
| Washing of hands with petrol (N = 50) | 0.0 (n = 0) | 30.8 ± 4.8 (n = 20) | 30.2 ± 4.6 (n = 16) | 28.8 ± 3.8*(n = 14) |
*P value <.05.