01865oam 2200433 a 450 991069809350332120111019144540.0(CKB)5470000002394064(OCoLC)223980943(EXLCZ)99547000000239406420080415d2008 ua 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierApplication of watershed ecological risk assessment methods to watershed management[electronic resource] /U.S. Environmental Protection Agency, Office of Research and Development, National Center for Environmental AssessmentWashington, DC :U.S. Environmental Protection Agency, Office of Research and Development, National Center for Environmental Assessment,[2008]1 online resource (83 unnumbered pages) illustrations (some color)Title from title screen (viewed Apr. 15, 2008)."March 2008.""EPA/600/R-06/037F."Includes bibliographical references (page [79-83]).WatershedsEnvironmental aspectsUnited StatesWaterPollutionHealth aspectsUnited StatesEnvironmental risk assessmentUnited StatesWatershedsEnvironmental aspectsWaterPollutionHealth aspectsEnvironmental risk assessmentNational Center for Environmental Assessment (Washington, D.C.)United States.Environmental Protection Agency.Office of Research and Development.EJBEJBOCLCQGPOBOOK9910698093503321Application of watershed ecological risk assessment methods to watershed management3142032UNINA