Cumulative Effectiveness of Radioactivity Decontamination
| %AR | |||||
| Solvent | Cotton swabs (n) | SS | C | M | E |
| None | 1 | 88.4 | 38.3 | 52.6 | 48.3 |
| 5 | 100 (2) | 50.7 | 80.6 | 71.5 | |
| 10 | — | 53.1 | 86.3 | 79.3 | |
| MeOH | 1 | 78.3 | 48.2 | 56.9 | 32.4 |
| 5 | 82.8 | 72.6 | 82.9 | 45.6 | |
| 10 | 82.8 | 90.0 | 88.8 | 48.8 | |
| MEK | 1 | 95.8 | 79.6 | 38.7 | 63.4 |
| 5 | 100 (2) | 97.3 | 67.3 | 71.8 | |
| 10 | — | 97.9 | 77.2 | 72.8 | |
| Acetone | 1 | 96.6 | 34.7 | 46.4 | 35.0 |
| 5 | 98.0 | 56.0 | 84.6 | 47.1 | |
| 10 | 98.5 | 61.8 | 91.1 | 50.4 | |
| EtOH | 1 | 75.2 | 47.8 | 47.4 | 31.7 |
| 5 | 80.5 | 61.5 | 77.3 | 45.5 | |
| 10 | 89.5 | 64.3 | 84.6 | 49.2 | |
SS = stainless steel; C = Corian surface (acrylic resin and natural minerals); M = vinyl-based multipurpose flooring; E = epoxy cover; MEK = methyl ethyl ketone.
Data are mean of 4 replicates. %AR is percentage of initial activity. Data in parentheses are number of cotton swabs used for removal when 100% was removed earlier.