| Similarity | Rank | |
|---|---|---|
| cadmium | 0.779 | 41060 |
| arsenic | 0.746 | 26103 |
| dioxin | 0.695 | 55824 |
| Hg | 0.667 | 80636 |
| pollutant | 0.662 | 14162 |
| toxic_substance | 0.654 | 64101 |
| heavy_metal | 0.648 | 17228 |
| fluoride | 0.642 | 34383 |
| cyanide | 0.639 | 59226 |
| toxic_chemical | 0.636 | 31858 |
| contaminant | 0.633 | 17936 |
| nitrogen_oxide | 0.628 | 78932 |
| benzene | 0.615 | 50027 |
| sulfur_dioxide | 0.610 | 93673 |
| nitrate | 0.608 | 26529 |
| particulate_matter | 0.607 | 54856 |
| chromium | 0.607 | 37434 |
| chlorine | 0.607 | 31008 |
| sulfur | 0.606 | 33667 |
| zinc | 0.604 | 15131 |
| ozone | 0.604 | 18722 |
| manganese | 0.602 | 42076 |
| hazardous_substance | 0.601 | 62680 |
| chloride | 0.601 | 50490 |
| sulfate | 0.601 | 62467 |