Designation:E2385−11StandardGuideforEstimatingWildlifeExposureUsingMeasuresofHabitatQuality1ThisstandardisissuedunderthefixeddesignationE2385;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1EcologicalRiskAssessments(EcoRAs)typicallyfocusonvaluedwildlifepopulations.Regulatoryauthorityforcon-ductingEcoRAsderivesfromvariousfederallaws[forexample,ComprehensiveEnvironmentalResponse,Compen-sationandLiabilityAct1981,(CERCLA),ResourceConser-vationRecoveryAct(RCRA),andFederalInsecticide,Fungicide,andRodenticideAct,(FIFRA)].CertainproceduresforconductingEcoRAs(1-4)2havebeenstandardized[E1689-95(2003)StandardGuideforDevelopingConceptualSiteModelsforContaminatedSites;E1848-96(2003)StandardGuideforSelectingandUsingEcologicalEndpointsforContaminatedSites;E2020-99aStandardGuideforDataandInformationOptionsforConductinganEcologicalRiskAs-sessmentatContaminatedSites;E2205-02StandardGuideforRisk-BasedCorrectiveActionforProtectionofEcologicalresources;E1739-95(2002)StandardGuideforRisk-BasedCorrectiveActionAppliedatPetroleumReleaseSites].Spe-cializedcasesforreportingdatahavealsobeenstandardized[E1849-96(2002)StandardGuideforFishandWildlifeInci-dentMonitoringandReporting]ashavesamplingprocedurestocharacterizevegetation[E1923-97(2003)StandardGuideforSamplingTerrestrialandWetlandsVegetation].1.2Moststateshaveenactedlawsmodeledafterthefederalactsandfollowsimilarprocedures.Typically,estimatesoflikelyexposurelevelstoconstituentsofpotentialconcern(CoPC)arecomparedtotoxicitybenchmarkvaluesorconcentration-responseprofilestoestablishthemagnitudeofriskposedbytheCoPCandtoinformriskmanagersconsid-eringpotentialmitigation/remediationoptions.Thelikelihoodofexposureisinfluencedgreatlybytheforagingbehaviorandresidencetimeoftheanimalsofinterestintheareascontainingsignificantconcentrat...
