Table 4. Heavy metals (Hg, Se, Cd; mg/kg w.w.) concentrations in kidneys of the three necropsied sperm whales (no. 5, 6 and 7).

Sperm whale	no. 5	no. 6	no. 7
TotHg (mg/kg ww)	5,01	7,15	4,88
MeHg (mg/kg ww)	1,51	1,90	2,15
%MeHg	30,14	26,57	44,06
Se (mg/kg ww)	4,51	4,49	4,58
Hg∶Se (molar)	0,47	0,51	0,44
Cd (mg/kg ww)	4,61	2,34	1,91