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Background corrected 8 h-TWA respirable dust (RD) exposure concentrations obtained for a typical working day, and comparison with the permissible exposure limit (PEL) for respirable inert mineral dust per The Danish Working Environment Authority (40).
| RD8 h-TWA [mg m−3] | PEL8 h-TWA [mg m−3] (40) | RD8 h-TWA/PEL8 h-TWA | |
|---|---|---|---|
| Working day at the facility | 0.02 | 5 | 0.004 |
