Table 1.
Descriptive statistics of the dust measurements and the subject-specific arithmetic means for the foundry and textile industries
| Industry/Job | N | Dust exposure levels (mg m−3) |
|||
| AM | GM | GSD | Maximum | ||
| Foundry | |||||
| All TWA measurements | 432 | 3.04 | 1.97 | 2.63 | 42.0 |
| Subject-specific measurement mean | 72 | 3.04 | 2.64 | 1.82 | 11.4 |
| Textile | |||||
| All TWA measurements | 443 | 0.95 | 0.43 | 4.37 | 22.2 |
| Subject-specific measurement mean | 74 | 0.95 | 0.69 | 3.41 | 7.31 |
AM, arithmetic mean; GM, geometric mean; GSD, geometric standard deviation, N, number of measurements.