DDT: criticism, curbs are on the upswing.
D000818:Animals; D003634:DDT; D004335:Drug and Narcotic Control; D007880:Legislation, Drug; D008824:Michigan; D012487:Salmonidae; D014481:United States; D014486:United States Food and Drug Administration; D014876:Water Pollution / Q000517:prevention & control*
D003634:DDT