Dieldrin levels in fish from Iowa streams.
D000818:Animals; D002849:Chromatography, Gas; D004026:Dieldrin / Q000032:analysis*; D005399:Fishes; D007484:Iowa; D010573:Pesticide Residues / Q000032:analysis*; D014481:United States; D014486:United States Food and Drug Administration; D014877:Water Pollution, Chemical / Q000032:analysis*
D010573:Pesticide Residues; D004026:Dieldrin