| Similarity | Rank | |
|---|---|---|
| nox | 0.902 | 28969 |
| carbon-dioxide | 0.880 | 95251 |
| mtbe | 0.867 | 87435 |
| c02 | 0.863 | 50452 |
| &sub2; | 0.863 | 34174 |
| tetrachloride | 0.855 | 38419 |
| ozone-damaging | 0.844 | 88642 |
| fluorocarbon | 0.841 | 92192 |
| trioxide | 0.838 | 83599 |
| co2 | 0.838 | 18793 |
| low-sulphur | 0.834 | 51947 |
| hcfc | 0.831 | 89263 |
| biofuel | 0.828 | 57289 |
| ozone-depleting | 0.826 | 40272 |
| condensate | 0.825 | 47200 |
| bontang | 0.822 | 81325 |
| ozone-destroy | 0.822 | 88366 |
| kilowatt-hour | 0.821 | 84907 |
| s02 | 0.820 | 73844 |
| fossil-fuel | 0.818 | 76055 |
| hfc | 0.817 | 66988 |
| vocs | 0.816 | 67555 |
| becquerel | 0.814 | 68530 |
| zirconium | 0.813 | 82220 |
| btu | 0.811 | 51172 |