Table 2.

Tolerable Daily Intake for selected metals [19]

Metal	μg/kg body weight	TDI for 70 kg for an adult
Arsenic (As) and its salts and derivatives	< 0.14	10.00 μg
Lead (Pb) and its salts and derivatives	< 0.29 μg/kg	20.00 μg
Cadmium (Cd) and its salts and derivatives	< 0.09 μg/kg	6.00 μg
Mercury (Hg) and its salts and derivatives	< 0.29	20.00 μg
Chromium (Cr) and its salts and derivatives	–	No internationally established TDI