Table 3.
Threshold toxicity level of filters, EDC, EDCP, masks, gloves, Coriolis, and settled dust in SK and A549 cells.
| SK | A549 | |||||||
|---|---|---|---|---|---|---|---|---|
| High | Moderate | Low | (-) | High | Moderate | Low | (-) | |
| Filters (N = 48) | 1 | 0 | 3 | 44 | 0 | 8 | 34 | 6 |
| EDC (N = 35) | 0 | 1 | 5 | 29 | 1 | 6 | 10 | 18 |
| EDCP (N = 38) | 0 | 2 | 14 | 22 | 3 | 2 | 11 | 22 |
| Masks (N = 6) | 0 | 0 | 3 | 3 | 0 | 0 | 6 | 0 |
| Gloves (N = 2) | 1 | 1 | 0 | 0 | 2 | 0 | 0 | 0 |
| Coriolis (N = 48) | 0 | 0 | 0 | 48 | 0 | 0 | 1 | 47 |
| Settled Dust (N = 13) | 6 | 7 | 0 | 0 | 6 | 7 | 0 | 0 |
| 8 (4.21%) | 11 (5.79%) | 25 (13.16%) | 146 (76.84%) | 12 (6.31%) | 23 (12.11%) | 62 (32.63%) | 93 (48.95%) | |
A549, human alveolar epithelial cells; SK, human liver carcinoma cells; EDC, Electrostatic dust collector; High, IC50≥3rd dilution; Moderate, IC50 at 2nd dilution; Low, IC50 at 1st dilution; (-), no cytotoxicity.