SimilarityRank
pollutant 0.755 10281
photochemical 0.718 30345
pollution 0.715 2289
emission 0.698 3620
sulphur 0.695 6647
sulphurous 0.682 30179
ozone 0.678 5037
nox 0.672 28969
stratosphere 0.670 17932
alloprene 0.670 83778
seveso 0.668 45819
atmospheric 0.662 7829
flooding 0.659 10043
dioxide 0.658 4762
monoxide 0.655 12904
fallout 0.647 25718
recycler 0.640 57887
halon 0.639 27495
vocs 0.637 67555
defoliation 0.636 62141
sub-zero 0.636 50007
inhalation 0.636 23727
nitrous 0.633 29606
thunderstorm 0.630 21293
fog 0.629 6281