| Similarity | Rank | |
|---|---|---|
| Liquids | 0.801 | 87311 |
| Combustion | 0.800 | 74853 |
| gases | 0.782 | 11662 |
| Emissions | 0.766 | 37744 |
| Dioxide | 0.762 | 69551 |
| Chemicals | 0.757 | 29540 |
| Methane | 0.752 | 69623 |
| Volatile | 0.751 | 77904 |
| Ammonia | 0.748 | 78473 |
| Nitrogen | 0.740 | 45976 |
| Particles | 0.738 | 75904 |
| Gas | 0.737 | 8205 |
| Hydrogen | 0.736 | 29099 |
| Pollution | 0.735 | 29306 |
| Fluids | 0.727 | 80748 |
| Emission | 0.726 | 56179 |
| gasses | 0.722 | 45276 |
| Compounds | 0.721 | 66913 |
| Hazardous | 0.715 | 38834 |
| Fuels | 0.708 | 48822 |
| Biomass | 0.707 | 50798 |
| Energies | 0.705 | 69180 |
| Radioactive | 0.703 | 64607 |
| Electromagnetic | 0.699 | 65812 |
| Solids | 0.699 | 87969 |