| Similarity | Rank | |
|---|---|---|
| particulate | 0.860 | 43599 |
| air_pollutant | 0.829 | 77087 |
| nitrogen_oxide | 0.802 | 78932 |
| sulfur_dioxide | 0.795 | 93673 |
| pollutant | 0.784 | 14162 |
| NOx | 0.776 | 71494 |
| air_pollution | 0.748 | 13199 |
| soot | 0.721 | 42732 |
| carbon_monoxide | 0.721 | 39006 |
| ozone | 0.717 | 18722 |
| smog | 0.694 | 39059 |
| small_particle | 0.670 | 93714 |
| pollution_from | 0.669 | 77604 |
| air_quality | 0.658 | 15064 |
| greenhouse_gas | 0.658 | 18514 |
| emission_from | 0.653 | 32492 |
| carbon_dioxide | 0.652 | 11994 |
| emission | 0.649 | 4559 |
| aerosol | 0.648 | 20834 |
| contaminant | 0.643 | 17936 |
| methane | 0.639 | 14641 |
| dioxin | 0.639 | 55824 |
| pollution | 0.638 | 4581 |
| water_vapor | 0.634 | 40856 |
| benzene | 0.626 | 50027 |