| Similarity | Rank | |
|---|---|---|
| nox | 0.857 | 28969 |
| fluorocarbon | 0.842 | 92192 |
| refrigerant | 0.841 | 52632 |
| &sub2; | 0.839 | 34174 |
| tetrachloride | 0.839 | 38419 |
| so2 | 0.838 | 62009 |
| c02 | 0.834 | 50452 |
| ethane | 0.833 | 70857 |
| ozone-depleting | 0.831 | 40272 |
| ozone-benign | 0.826 | 99646 |
| feedstock | 0.823 | 29226 |
| vocs | 0.822 | 67555 |
| mtbe | 0.816 | 87435 |
| ozone-destroy | 0.816 | 88366 |
| hcfc | 0.816 | 89263 |
| dioxide | 0.812 | 4762 |
| phosgene | 0.811 | 98640 |
| ozone-damaging | 0.810 | 88642 |
| chlorofluorocarbon | 0.808 | 24061 |
| trioxide | 0.805 | 83599 |
| cfc | 0.804 | 9251 |
| halon | 0.803 | 27495 |
| nitrous | 0.803 | 29606 |
| hcfcs | 0.802 | 61147 |
| fossil-fuel | 0.802 | 76055 |