Chlorinated hydrocarbon pesticides in Iowa rivers.
D002713:Chlorine; D002849:Chromatography, Gas; D003634:DDT / Q000032:analysis; D004026:Dieldrin / Q000032:analysis; D006846:Hydrocarbons, Halogenated / Q000032:analysis*; D007484:Iowa; D010575:Pesticides / Q000032:analysis*; D013997:Time Factors; D014867:Water / Q000032:analysis; D014876:Water Pollution / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000032:analysis
D006846:Hydrocarbons, Halogenated; D010575:Pesticides; D014867:Water; D002713:Chlorine; D003634:DDT; D004026:Dieldrin