| Similarity | Rank | |
|---|---|---|
| air_pollutant | 0.844 | 77087 |
| pollution | 0.818 | 4581 |
| air_quality | 0.808 | 15064 |
| smog | 0.791 | 39059 |
| pollution_from | 0.758 | 77604 |
| particulate_matter | 0.748 | 54856 |
| pollutant | 0.746 | 14162 |
| water_pollution | 0.736 | 34005 |
| noise_pollution | 0.730 | 71288 |
| nitrogen_oxide | 0.722 | 78932 |
| environmental_pollution | 0.708 | 52695 |
| improve_air_quality | 0.699 | 92085 |
| greenhouse_gas_emission | 0.691 | 18703 |
| carbon_dioxide_emission | 0.685 | 61386 |
| acid_rain | 0.684 | 69028 |
| sulfur_dioxide | 0.679 | 93673 |
| carbon_emission | 0.673 | 20778 |
| greenhouse_gas | 0.666 | 18514 |
| NOx | 0.662 | 71494 |
| emission | 0.654 | 4559 |
| Air_Quality | 0.651 | 61690 |
| ozone | 0.648 | 18722 |
| traffic_congestion | 0.643 | 40949 |
| health_impact | 0.637 | 74196 |
| particulate | 0.631 | 43599 |