| arsenic → CapableOf → occur in the environment | 0.62 | |
| radon → CapableOf → occur in the environment | 0.54 | |
| change → CapableOf → occur in the environment | 0.50 | |
| asbestos → CapableOf → occur in the environment | 0.46 | |
| formaldehyde → CapableOf → occur in the environment | 0.43 | |
| nitrate → CapableOf → occur in the environment | 0.42 | |
| cadmium → CapableOf → occur in the environment | 0.39 | |
| hydrogen sulfide → CapableOf → occur in the environment | 0.34 | |
| lead → CapableOf → occur in the environment | 0.32 | |
| ammonia → CapableOf → occur in the environment | 0.32 |