Table 3. Total mercury, lead, and cadmium (mg/kg dry weight) in the brains of carnivore mammals from NW Poland (n, number; Med, median).

Species		Hg	Pb	Cd
European otter Lutra lutra	n	6	6	6
	Med	2.444	0.156	0.026
	range	0.481–3.659	0.047–1.536	0.006–0.058
Feral American mink Neovison vision	n	8	8	8
	Med	3.964	0.208	0.055
	range	0.769–6.663	0.050	0.026–0.088
Ranch American mink Neovison vision	n	7	7	7
	Med	0.021	0.072	0.068
	range	0.019–0.038	0.068–0.443	0.059–0.305
Native medium-sized mustelids (Martes martes, M. foina, Mustela putorius)	n	9	9	9
	Med	0.106	0.212	0.029
	range	0.025–0.336	0.051–0.706	0.006–0.120
Badger Meles meles	n	6	6	6
	Med	0.124	0.305	0.035
	range	0.073–0.819	0.050–2.943	0.008–0.987
Raccoon Procyon lotor	n	29	17	17
	Med	0.145	0.470	0.026
	range	0.009–1.971	0.180–4.118	0.006–0.068
Red fox Vulpes vulpes	n	14	14	14
	Med	0.023	0.277	0.008
	range	0.011–0.236	0.183–33.51	0.007–0.034
Raccoon dog Nyctereutes procyonoides	n	14	12	15
	Med	0.150	0.184	0.036
	range	0.036–0.437	0.040–19.33	0.006–0.125