| Similarity | Rank | |
|---|---|---|
| arsenic | 0.876 | 26971 |
| Cadmium | 0.849 | 92950 |
| manganese | 0.839 | 34131 |
| antimony | 0.828 | 86112 |
| chromium | 0.824 | 30704 |
| mercury | 0.819 | 12016 |
| vanadium | 0.818 | 85004 |
| oxides | 0.805 | 42880 |
| fluorine | 0.802 | 79157 |
| beryllium | 0.799 | 85366 |
| sulfide | 0.799 | 49224 |
| PCBs | 0.791 | 43934 |
| dioxins | 0.789 | 77636 |
| strontium | 0.789 | 86420 |
| benzene | 0.787 | 46443 |
| zinc | 0.786 | 12744 |
| chloride | 0.784 | 23685 |
| boron | 0.779 | 57042 |
| silica | 0.771 | 29482 |
| toxicity | 0.768 | 14174 |
| cobalt | 0.763 | 35262 |
| bismuth | 0.759 | 98107 |
| carcinogenic | 0.758 | 37544 |
| indium | 0.757 | 98964 |
| ferrous | 0.757 | 60186 |