| Similarity | Rank | |
|---|---|---|
| pollutant | 0.798 | 14162 |
| contamination | 0.759 | 11533 |
| toxic_substance | 0.759 | 64101 |
| toxin | 0.752 | 10858 |
| hazardous_substance | 0.738 | 62680 |
| sediment | 0.717 | 9378 |
| particulate | 0.701 | 43599 |
| dioxin | 0.693 | 55824 |
| arsenic | 0.690 | 26103 |
| pathogen | 0.690 | 11287 |
| effluent | 0.687 | 39640 |
| toxic_chemical | 0.680 | 31858 |
| and_other_chemical | 0.671 | 95068 |
| surface_water | 0.671 | 17620 |
| carcinogen | 0.670 | 61516 |
| organic_compound | 0.669 | 62871 |
| these_chemical | 0.664 | 50717 |
| contamination_of | 0.658 | 34161 |
| aquatic_environment | 0.657 | 76262 |
| pesticide | 0.653 | 6014 |
| microorganism | 0.650 | 15992 |
| groundwater | 0.648 | 10207 |
| heavy_metal | 0.647 | 17228 |
| chemical | 0.647 | 2031 |
| contaminated_soil | 0.647 | 97927 |