| Trace Elements | n | Minimum | Maximum | Mean | St. Deviation |
| Arsenic | 95 | 34.37 | 561.80 | 130.45 | 102.51 |
| Cadmium | 95 | 0.02 | 379.77 | 48.46 | 90.77 |
| Cobalt | 95 | 10.13 | 449.92 | 78.61 | 93.76 |
| Chromium | 95 | 3.06 | 463.10 | 63.55 | 101.51 |
| Iron | 95 | 563.29 | 8401.27 | 2107.46 | 1613.09 |
| Lead | 95 | 21.08 | 579.36 | 205.19 | 122.80 |
| Antimony | 95 | 93.69 | 801.79 | 276.70 | 123.70 |
| Thallium | 95 | 0.00 | 475.92 | 69.62 | 92.97 |