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Respirable filter concentrations and mean near field respirable mass concentrations measured by the DustTrak for the same period as NF respirable mass was collected.
| Location | Concentration [μg m−3] |
|---|---|
| Personal breathing zone | < DL |
| Near field | 50.4 |
| Far field | < DL |
| DustTrak (NF) | 58.4 |
DL, detection limit.
