| Similarity | Rank | |
|---|---|---|
| pollutants | 0.896 | 16074 |
| contaminant | 0.854 | 45441 |
| toxics | 0.826 | 88988 |
| particulate | 0.825 | 32316 |
| particulates | 0.817 | 55487 |
| pollution | 0.815 | 5841 |
| contaminants | 0.798 | 17549 |
| NOx | 0.786 | 55787 |
| effluent | 0.781 | 38366 |
| gases | 0.777 | 11662 |
| ozone | 0.775 | 18222 |
| GHGs | 0.770 | 91201 |
| nitrogen | 0.762 | 12237 |
| VOCs | 0.761 | 56195 |
| dioxins | 0.760 | 77636 |
| dioxide | 0.757 | 10273 |
| groundwater | 0.752 | 17131 |
| emissions | 0.745 | 4569 |
| gasses | 0.743 | 45276 |
| turbidity | 0.739 | 71435 |
| methane | 0.739 | 19799 |
| PAHs | 0.736 | 93057 |
| hazardous | 0.736 | 9444 |
| benzene | 0.734 | 46443 |
| hydrocarbons | 0.734 | 32458 |