Table 2.
Summary statistics of the concentration (μg/g wet weight) of four metals (Cd, Pb, Cu, and Zn) in liver and kidney of 10 Eurasian beavers, NE Poland, 2012
| Metal | Mean ± SD | Median | Range | Maximum legal levela |
|---|---|---|---|---|
| Liver | ||||
| Cd | 0.21 ± 0.44 | 0.06 | 0.03–1.44 | 0.5 |
| Pb | 0.08 ± 0.03 | 0.06 | 0.05–0.12 | 0.5 |
| Cu | 9.2 ± 4.5 | 6.9 | 5.2–16.4 | –b |
| Zn | 35.7 ± 3.5 | 36.2 | 31.4–40.6 | –b |
| Kidney | ||||
| Cd | 2.81 ± 4.52 | 1.37 | 0.02–14.88 | 1.0 |
| Pb | 0.08 ± 0.03 | 0.07 | 0.05–0.14 | 0.5 |
| Cu | 3.7 ± 1.1 | 3.5 | 3.0–3.8 | –b |
| Zn | 21.5 ± 2.7 | 20.2 | 19.0–27.9 | –b |
aMaximum levels set by the European Commission (2006) for contaminants of toxic elements in food of animal origin
bNo regulation