| abstract |
A method of removing and detecting the presence of substances from at least one of a body of water (20) and the air. The method includes placing into the body of water (20) or into the air an open-cell foam material (12, 14, 16), removing separate portions of the open-cell foam material (12, 14, 16) from the water (20) or air at different exposure times after the open-cell foam material (12, 14, 16) was placed into the water (20) or air, and determining the presence in the removed separate portions of one or more substances that were removed from the water (20) or air by the open-cell foam material (12, 14, 16). |