SimilarityRank
air_pollution 0.844 13199
pollutant 0.837 14162
nitrogen_oxide 0.830 78932
particulate_matter 0.829 54856
sulfur_dioxide 0.783 93673
NOx 0.779 71494
ozone 0.731 18722
particulate 0.726 43599
air_quality 0.724 15064
smog 0.721 39059
greenhouse_gas 0.700 18514
soot 0.693 42732
pollution_from 0.693 77604
carbon_monoxide 0.686 39006
pollution 0.683 4581
emission 0.681 4559
improve_air_quality 0.670 92085
emission_from 0.661 32492
carbon_dioxide_emission 0.658 61386
greenhouse_gas_emission 0.654 18703
acid_rain 0.642 69028
carbon_dioxide 0.640 11994
Air_Quality 0.635 61690
dioxin 0.633 55824
Co_2_emission 0.632 88444