| Incident | Total Number of Samples (n) | Number of Samples with Conc. (≥2 pg PCDD/F-WHO- TEQ/g) | Number of Samples with Conc. (<2 pg PCDD/F-WHO- TEQ/g) | Highest concentration (pg PCDD/F-WHO- TEQ/g) | Average concentration (pg PCDD/F-WHO- TEQ/g) (SD) | Average concentration (≥2 pg PCDD/F-WHO- TEQ/g) (SD) | Average concentration (<2 pg PCDD/F-WHO- TEQ/g) (SD) |
| 2006 | 10 | 4 | 6 | 368 | 62 (116) | 154 (148) | 0.47 (0.35) |
| 2011 | 13 | 6 | 7 | 446 | 78 (164) | 169 (216) | 0.42 (0.62) |
| Total | 23 | 10 | 13 | 446 | 71 (143) | 163 (182) | 0.44 (0.49) |