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The 8-h TWA EC concentrations calculated for the different occupations in the MWCNT manufacturing facility.
| Occupation | Workstations | 8 h EC inhalable conc., µg/m3 | 8 h EC respirable conc., µg/m3 |
|---|---|---|---|
| Technical operator (3 workers) | Reactor cleanout | 17.1 | 2.8 |
| Mechanical grinding | |||
| Packaging site | |||
| Foreman (1 worker) | Reactor cleanout | 10.4 | 1.8 |
| Mechanical grinding | |||
| Packaging site | |||
| Engineer (3 workers) | Reactor cleanout | 3.5 | 0.7 |
| Researcher (3 workers) | Reactor cleanout | 4.4 | 1.3 |
| Lab handling |
