SimilarityRank
pollutant 0.798 14162
contamination 0.759 11533
toxic_substance 0.759 64101
toxin 0.752 10858
hazardous_substance 0.738 62680
sediment 0.717 9378
particulate 0.701 43599
dioxin 0.693 55824
arsenic 0.690 26103
pathogen 0.690 11287
effluent 0.687 39640
toxic_chemical 0.680 31858
and_other_chemical 0.671 95068
surface_water 0.671 17620
carcinogen 0.670 61516
organic_compound 0.669 62871
these_chemical 0.664 50717
contamination_of 0.658 34161
aquatic_environment 0.657 76262
pesticide 0.653 6014
microorganism 0.650 15992
groundwater 0.648 10207
heavy_metal 0.647 17228
chemical 0.647 2031
contaminated_soil 0.647 97927