| Similarity | Rank | |
|---|---|---|
| NOx | 0.545 | 71494 |
| particulate_matter | 0.521 | 54856 |
| air_pollutant | 0.520 | 77087 |
| ozone | 0.506 | 18722 |
| sulfur_dioxide | 0.498 | 93673 |
| pollutant | 0.494 | 14162 |
| carbon_monoxide | 0.489 | 39006 |
| PAH | 0.479 | 66323 |
| particulate | 0.473 | 43599 |
| nitrogen_oxide | 0.469 | 78932 |
| benzene | 0.463 | 50027 |
| formaldehyde | 0.462 | 47313 |
| toluene | 0.461 | 94465 |
| soot | 0.461 | 42732 |
| ammonia | 0.453 | 28243 |
| aerosol | 0.448 | 20834 |
| solvent | 0.439 | 14169 |
| hazardous_substance | 0.438 | 62680 |
| organic_compound | 0.435 | 62871 |
| scrubber | 0.435 | 97588 |
| dioxin | 0.432 | 55824 |
| GHG | 0.432 | 70082 |
| odor | 0.429 | 19913 |
| greenhouse_gas | 0.427 | 18514 |
| fume | 0.425 | 27873 |