| Metals | RfD (mg/kg body weight/day ) | ADD (mg/kg body weight/day) | HQ (Hazard Quotient) |
| Fe | 7 × 10−1 | 0.0005 | 0.0007 |
| Cu | 4.0 × 10−2 | 0.0017 | 0.0049 |
| Pb | 3.5 × 10−3 | 0.0017 | 0.486 |
| Zn | 3.0 × 10−1 | 0.0025 | 0.0085 |