| Similarity | Rank | |
|---|---|---|
| Zn | 0.790 | 68900 |
| Cu | 0.756 | 41933 |
| cadmium | 0.710 | 41060 |
| Hg | 0.686 | 80636 |
| Cd | 0.685 | 45590 |
| Fe | 0.673 | 39289 |
| Mg | 0.672 | 77649 |
| Mn | 0.647 | 68642 |
| manganese | 0.646 | 42076 |
| arsenic | 0.639 | 26103 |
| chloride | 0.615 | 50490 |
| oxide | 0.615 | 36142 |
| Ni | 0.607 | 29169 |
| nitrate | 0.606 | 26529 |
| boron | 0.596 | 94693 |
| heavy_metal | 0.595 | 17228 |
| molybdenum | 0.593 | 99949 |
| trace_element | 0.592 | 82700 |
| mercury | 0.590 | 12741 |
| phosphorus | 0.588 | 20115 |
| anion | 0.583 | 85653 |
| chromium | 0.583 | 37434 |
| cobalt | 0.580 | 49555 |
| adsorption | 0.572 | 67852 |
| cation | 0.569 | 64222 |