Pesticides in surface waters of the United States--a 5-year summary, 1964-68.
D000452:Aldrin / Q000032:analysis; D002706:Chlordan / Q000032:analysis; D002849:Chromatography, Gas; D003634:DDT / Q000032:analysis; D003632:Dichlorodiphenyldichloroethane / Q000032:analysis; D004026:Dieldrin / Q000032:analysis; D006533:Heptachlor / Q000032:analysis; D001556:Hexachlorocyclohexane / Q000032:analysis; D006846:Hydrocarbons, Halogenated / Q000032:analysis*; D010575:Pesticides / Q000032:analysis*; D013997:Time Factors; D014481:United States; D014876:Water Pollution / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000032:analysis
D006846:Hydrocarbons, Halogenated; D010575:Pesticides; D002706:Chlordan; D001556:Hexachlorocyclohexane; D006533:Heptachlor; D003634:DDT; D004026:Dieldrin; D000452:Aldrin; D003632:Dichlorodiphenyldichloroethane