02159oam 2200625 450 991069009370332120190215103257.0(CKB)5470000002334321(OCoLC)971334048(OCoLC)995470000002334321(EXLCZ)99547000000233432120170203d1990 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierApplicability of ambient toxicity testing to national or regional water-quality assessment /by John F. Elder[Reston, Virginia] :U.S. Department of the Interior, U.S. Geological Survey,1990.[Washington, D.C.] :United States Government Printing Office,1989.1 online resource (iv, 49 pages) illustrationsU.S. Geological Survey circular ;1049Includes bibliographical references (pages 30-42).Water quality bioassayWater quality bioassayUnited StatesToxicity testingWater qualityMeasurementWater quality managementUnited StatesToxicity testingfastWater quality bioassayfastWater quality managementfastWater qualityMeasurementfastUnited StatesfastWater quality bioassay.Water quality bioassayToxicity testing.Water qualityMeasurement.Water quality managementToxicity testing.Water quality bioassay.Water quality management.Water qualityMeasurement.Elder John F.783974Geological Survey (U.S.),OCLCEOCLCEOCLCOOCLCQOCLCACOPGPOBOOK9910690093703321Applicability of ambient toxicity testing to national or regional water-quality assessment3453351UNINA