TABLE 2.
Sampling duration in hours and workers involved by dust diameter
| Number of companies | Number of construction sites | Number of measurements | Number of workers | Total sampling hours | |
|---|---|---|---|---|---|
| Inhalable dust | 6 | 28 | 47 | 47 | 265 |
| Respirable dust | 5 | 28 | 44 | 43 | 243 |
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