Estimation of individual miner’s exposure to total and respirable dust: distribution of three year mean dust concentration
| Dust fraction | Maximal | 75th percentile | Median | 25th percentile | Minimum | Mean |
|---|---|---|---|---|---|---|
| Respirable (mg/m3) | 78.7 | 3.7 | 2.7 | 2.4 | 0.6 | 8.9 |
| Total (mg/m3) | 186.0 | 10.7 | 8.7 | 7.2 | 1.8 | 23.8 |