TABLE III.
Task-Based Characterization of Particulate Matter for Company A
| Task | Total Dust (mg/m3) | MMAD, μm (GSD) | Respirable Mass Fraction (%) |
|---|---|---|---|
| Cutting roof tiles in a roof valley | 100 | 9 (2.4) | 17 |
| Cutting roof tiles to be used on a roof turret | 107 | 9 (2.3) | 15 |
| Blowing tile dust off roof with leaf blower | 6 | 13 (2.7) | 11 |