02459oam 2200649 450 991071661460332120210914131957.0(CKB)5470000002524023(OCoLC)680247192(OCoLC)622216349(OCoLC)667889806(OCoLC)984765399(OCoLC)995470000002524023(EXLCZ)99547000000252402320101110d1997 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierWater-quality assessment of the Potomac River Basin analysis of available pesticide data, 1972-90 /by Humbert Zappia and Gary T. FisherBaltimore, Maryland :U.S. Geological Survey,1997.1 online resource (vi, 80 pages) mapsWater-resources investigations report ;97-4051"Prepared as part of the National Water-Quality Assessment (NAWQA) Program."Includes bibliographical references (pages 75-77).Water-quality assessment of the Potomac River Basin Water qualityPotomac River WatershedPesticidesEnvironmental aspectsPotomac River WatershedFishesEffect of water pollution onPotomac River WatershedPollutionPhysiological effectPotomac River WatershedFishesEffect of water pollution onfastPesticidesEnvironmental aspectsfastPollutionPhysiological effectfastUnited StatesPotomac River WatershedfastWater qualityPesticidesEnvironmental aspectsFishesEffect of water pollution onPollutionPhysiological effectFishesEffect of water pollution on.PesticidesEnvironmental aspects.PollutionPhysiological effect.Zappia Humbert1400978Fisher Gary T.Geological Survey (U.S.),National Water-Quality Assessment Program (U.S.)OCLCEOCLCEOCLCQOCLCFOCLCQOCLCOOCLCQCOPOCLCAGPOBOOK9910716614603321Water-quality assessment of the Potomac River Basin3468902UNINA