| Similarity | Rank | |
|---|---|---|
| sulfur_dioxide | 0.852 | 93673 |
| NOx | 0.841 | 71494 |
| air_pollutant | 0.830 | 77087 |
| particulate_matter | 0.802 | 54856 |
| carbon_monoxide | 0.758 | 39006 |
| pollutant | 0.758 | 14162 |
| emission | 0.743 | 4559 |
| carbon_dioxide | 0.731 | 11994 |
| greenhouse_gas | 0.725 | 18514 |
| particulate | 0.725 | 43599 |
| air_pollution | 0.722 | 13199 |
| emission_from | 0.709 | 32492 |
| ozone | 0.708 | 18722 |
| carbon_dioxide_emission | 0.692 | 61386 |
| methane | 0.692 | 14641 |
| ammonia | 0.689 | 28243 |
| Co_2_emission | 0.687 | 88444 |
| soot | 0.679 | 42732 |
| CO2 | 0.673 | 9699 |
| combustion_of | 0.672 | 77006 |
| Co_2 | 0.668 | 19859 |
| pollution_from | 0.664 | 77604 |
| benzene | 0.663 | 50027 |
| sulfur | 0.662 | 33667 |
| smog | 0.661 | 39059 |