Table 4.

The reference doses (RfD) for metals. Based on [75].

Metal	Reference Dose (RfD)
Mn	0.14 mg/kg/day
Cu	4 × 10−2 mg/kg/day
Zn	0.3 mg/kg/day
Fe	0.7 mg/kg/day
Cr	3 × 10−3 mg/kg/day
Mo	5 × 10−3 mg/kg/day
Ni	2 × 10−2 mg/kg/day
Co	3 × 10−4 mg/kg/day
V	5.04 × 10−3 mg/kg/day
Ba	0.07 mg/kg/day
Sr	0.6 mg/kg/day
Al	4 × 10−4 mg/kg/day
B	0.2 mg/kg/day