| Parameter | Up Qua I. | Mid Qua I. | Down Qua I. |
| Iron | −12.36 | −13.02 | −13.02 |
| Zinc | −11.05 | −11.02 | −11.97 |
| Manganese | −13.29 | −13.45 | −13.30 |
| Cobalt | −1.756 | −1.666 | −1.905 |
| Lead | −5.993 | −6.169 | −6.099 |
| Nickel | −6.644 | −6.480 | −9.118 |
| Copper | −6.861 | −9.723 | −8.721 |
| Chromium | −7.310 | − | − |
| Cadmium | 2.508 | 1.021 | 1.188 |