| Similarity | Rank | |
|---|---|---|
| cadmium | 0.816 | 41060 |
| mercury | 0.746 | 12741 |
| dioxin | 0.731 | 55824 |
| manganese | 0.717 | 42076 |
| cyanide | 0.715 | 59226 |
| fluoride | 0.711 | 34383 |
| heavy_metal | 0.699 | 17228 |
| contaminant | 0.690 | 17936 |
| carcinogen | 0.689 | 61516 |
| nitrate | 0.684 | 26529 |
| benzene | 0.672 | 50027 |
| toxic_substance | 0.666 | 64101 |
| chloride | 0.659 | 50490 |
| zinc | 0.658 | 15131 |
| boron | 0.643 | 94693 |
| drinking_water | 0.643 | 14184 |
| chromium | 0.643 | 37434 |
| toxic_chemical | 0.640 | 31858 |
| Pb | 0.639 | 71606 |
| radon | 0.636 | 66432 |
| pollutant | 0.636 | 14162 |
| groundwater | 0.636 | 10207 |
| sulfate | 0.628 | 62467 |
| ground_water | 0.628 | 30977 |
| phosphorus | 0.623 | 20115 |