SimilarityRank
oil_spill 0.668 21876
surfactant 0.660 42191
these_chemical 0.598 50717
contaminant 0.584 17936
in_the_Gulf_of 0.578 19759
the_marine_environment 0.577 29880
and_other_chemical 0.577 95068
chemical 0.572 2031
chemical_use 0.572 49215
hydrocarbon 0.570 21173
crude_oil 0.569 20562
the_Gulf_of_Mexico 0.568 29187
solvent 0.566 14169
toxic_chemical 0.565 31858
emulsion 0.562 48773
acidification 0.554 76521
marine_ecosystem 0.553 35001
Gulf_of_Mexico 0.551 89241
oil 0.548 1091
ocean_water 0.548 86316
sediment 0.543 9378
ocean_acidification 0.543 42914
toxic_substance 0.542 64101
coastal_ecosystem 0.539 84182
benzene 0.536 50027