| Similarity | Rank | |
|---|---|---|
| contaminate | 0.795 | 22924 |
| contaminated | 0.788 | 43979 |
| contamination | 0.753 | 11533 |
| contamination_of | 0.715 | 34161 |
| contaminated_water | 0.668 | 71547 |
| contaminant | 0.623 | 17936 |
| polluted | 0.607 | 49651 |
| ground_water | 0.573 | 30977 |
| groundwater | 0.564 | 10207 |
| drinking_water | 0.555 | 14184 |
| arsenic | 0.550 | 26103 |
| pollute | 0.549 | 14591 |
| be_unsafe | 0.546 | 53243 |
| be_infect | 0.541 | 31625 |
| tap_water | 0.540 | 47298 |
| effluent | 0.539 | 39640 |
| toxic | 0.535 | 9435 |
| sicken | 0.534 | 68874 |
| tainted | 0.533 | 80370 |
| salmonella | 0.533 | 79933 |
| toxic_chemical | 0.533 | 31858 |
| toxic_substance | 0.532 | 64101 |
| water_source | 0.531 | 24751 |
| water_sample | 0.530 | 59754 |
| taint | 0.527 | 32394 |