Table 5.
Metals | Higher price |
Lower price |
||||
---|---|---|---|---|---|---|
Mean ± SD | Median | Range | Mean ± SD | Median | Range | |
Mn | 13.73 ± 2.20 | 14.71 | 4.91 | 11.27 ± 9.27 | 9.8 | 19.61 |
Ni | 8.24 ± 3.29 | 11.03 | 7.35 | 5.15 ± 4.19 | 3.68 | 11.03 |
Cu | 7.63 ± 4.64 | 4.24 | 8.47 | 7.63 ± 3.54 | 8.48 | 8.47 |
Cd | 0.34 ± 0.20 | 0.35 | 0.56 | 0.89 ± 0.58 | 0.83 | 1.39 |
Cr | 0.00 ± 0.00 | 0 | 0 | 0.016 ± 0.023 | 0.1 | 0.05 |
Pb | 0.06 ± 0.042 | 0.05 | 0.1 | 0.106 ± 0.084 | 0.1 | 0.19 |