Element | Symbol | Mean | Std. dev. | Minimum | Maximum |
---|---|---|---|---|---|
Aluminum | Al (wt%) | 1.527 | 0.427 | 0.642 | 3.192 |
Arsenic | As (ppm) | 3.279 | 1.166 | 1.774 | 8.278 |
Calcium | Ca (wt%) | 0.076 | 0.024 | 0.027 | 0.181 |
Copper | Cu (ppm) | 3.007 | 0.866 | 1.005 | 6.425 |
Iron | Fe (wt%) | 1.244 | 0.360 | 0.595 | 2.389 |
Mercury | Hg (ppm) | 0.012 | 0.002 | 0.010 | 0.019 |
Magnesium | Mg (wt%) | 0.085 | 0.029 | 0.029 | 0.190 |
Manganese | Mn (ppm) | 328.848 | 108.331 | 174.847 | 733.304 |
Sodium | Na (wt%) | 0.134 | 0.042 | 0.050 | 0.291 |
Phosphorus | P (wt%) | 0.016 | 0.004 | 0.008 | 0.032 |
Lead | Pb (ppm) | 16.186 | 2.650 | 9.343 | 25.537 |
Selenium | Se (ppm) | 0.176 | 0.062 | 0.100 | 0.468 |
Titanium | Ti (wt%) | 0.423 | 0.077 | 0.185 | 0.631 |
Zinc | Zn (ppm) | 19.485 | 4.614 | 9.505 | 33.929 |