Fig 1.
Selected parameters of the research method used
| Validation characteristic | Validation results | |||
|---|---|---|---|---|
| PCDD/PCDFs | dl-PCBs | ndl-PCBs | ||
| Linearity | pg WHO-TEQ/g fat | ng/g fat | ||
| Range | 0.10–500.0 | 0.25–400.0 | 0.21–800.0 | |
| Relative response rate | 0.907–1.142 | 1.014–1.182 | 0.974–1.258 | |
| Limit of detection | pg/g | ng/g | ||
| 0.02 | 0.40 | 0.001 | ||
| Limit of quantification | pg/g | ng/g | ||
| 0.05 | 1.00 | 0.003 | ||
| Recovery (%) | 60.0–120.0 | 60.0–120.0 | ||
| Expanded uncertainty (k = 2) (%) | 16.38 | 16.47 | 22.67 | |
Levels of dioxins and polychlorinated biphenyls (PCBs) in the muscle tissue of free-living and farmed cervids
| PCDD/PCDFs | dl-PCBs | PCDD/PCDF/dl-PCBs | ndl-PCBs | ||
|---|---|---|---|---|---|
| (pg WHO-TEQ/g fat) | (ng/g fat) | ||||
| Free-living cervids (n = 23) | Xavr ± SD | 2.53 ± 1.42 | 2.24 ± 1.58 | 4.77 ± 2.92 | 5.69 ± 3.57 |
| range | 0.36–5.55 | 0.43–5.50 | 0.79–10.80 | 1.57–14.75 | |
| Farmed cervids (n = 11) | Xavr ± SD | 0.79 ± 0.73 | 1.06 ± 0.72 | 1.85 ± 1.21 | 3.10 ± 1.68 |
| range | 0.23–2.50 | 0.23–2.80 | 0.53–3.97 | 1.38–6.51 | |
| Maximum levels (Commission Regulation 2023/915 EU) | 3.0 | - | 7.5 | - | |
Theoretical intake of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and dioxin-like polychlorinated biphenyls (dl-PCBs) (expressed as a percentage of the tolerable weekly intake – TWI) by adults and children with muscle tissue from free-living and farmed cervids based on mean and 97_5th percentile (P97_5) values of results
| PCDD/F/dl-PCBs pg WHO-TEQ/g wet weight | Intake (% TWI) | |||||||
|---|---|---|---|---|---|---|---|---|
| Occasionally | Frequent | Very common | ||||||
| Adult | Child | Adult | Child | Adult | Child | |||
| Free-living cervids | Xavr | 0.34 | 1.89 | 2.87 | 11.0 | 17.0 | 84.0 | 127.0 |
| P97.5 | 0.54 | 2.94 | 4.62 | 18.0 | 27.0 | 133.0 | 202.0 | |
| Farmed cervids | Xavr | 0.09 | 0.52 | 0.78 | 2.0 | 3.0 | 23.0 | 35.0 |
| P97.5 | 0.26 | 1.45 | 2.20 | 9.0 | 13.0 | 65.0 | 99.0 | |