SimilarityRank
pollution 0.789 5841
soot 0.750 34824
ozone 0.735 18222
fumes 0.719 20241
pollutants 0.712 16074
particulates 0.692 55487
haze 0.691 20501
pollutant 0.680 41997
gases 0.675 11662
gasses 0.672 45276
particulate 0.671 32316
toxics 0.669 88988
vapors 0.666 41277
dust 0.663 3733
sulfur 0.662 22001
vapor 0.659 13070
tailpipe 0.654 80378
noxious 0.648 34037
emissions 0.645 4569
fogs 0.644 98740
monoxide 0.642 23477
polluted 0.639 21268
air 0.639 594
emission 0.630 13146
polluting 0.628 28346