EPA Method 1630-2001 测定水体甲基汞

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1、EPA-821-R-01-020January2001Method1630MethylMercuryinWaterbyDistillation,AqueousEthylation,PurgeandTrap,andCVAFSDraftJanuary2001U.S.EnvironmentalProtectionAgencyOfficeofWaterOfficeofScienceandTechnologyEngineeringandAnalysisDivision(4303)1200PennsylvaniaAvenueNWWashingto

2、n,D.C.20460Method1630AcknowledgmentsThismethodwaspreparedunderthedirectionofWilliamA.TelliardoftheEngineeringandAnalysisDivision(EAD)withintheU.S.EnvironmentalAgency's(EPA's)OfficeofScienceandTechnology(OST).ThemethodwaspreparedbyNicholasBloomofFrontierGeosciencesunderE

3、PAContract68-C3-0337withtheDynCorpEnvironmentalProgramsDivision.AdditionalassistanceinpreparingthemethodwasprovidedbyDynCorpEnvironmentalandInterface,Inc.DisclaimerThismethodhasbeenreviewedandapprovedforpublicationbytheAnalyticalMethodsStaffwithintheEngineeringandAnalys

4、isDivisionoftheU.S.EnvironmentalProtectionAgency.Mentionoftradenamesorcommercialproductsdoesnotconstituteendorsementorrecommendationforuse.ThismethodversioncontainsminoreditorialchangestotheAugust1998version.Questionsconcerningthismethodoritsapplicationshouldbeaddressed

5、to:W.A.TelliardEngineeringandAnalysisDivision(4303)U.S.EnvironmentalProtectionAgency1200PennsylvaniaAvenueNWWashington,D.C.20460Phone:202/260-7134Fax:202/260-7185Draft,January2001iiMethod1630IntroductionThisanalyticalmethodsupportswaterqualitymonitoringprogramsauthorize

6、dundertheCleanWaterAct(CWA,the"Act").CWASection304(a)requiresEPAtopublishwaterqualitycriteriathatreflectthelatestscientificknowledgeconcerningthephysicalfate(e.g.,concentrationanddispersal)ofpollutants,theeffectsofpollutantsonecologicalandhumanhealth,andtheeffectofpollu

7、tantsonbiologicalcommunitydiversity,productivity,andstability.CWASection303requireseachstatetosetawaterqualitystandardforeachbodyofwaterwithinitsboundaries.Astatewaterqualitystandardconsistsofadesignateduseorusesofawaterbodyorasegmentofawaterbody,thewaterqualitycriteria

8、thatarenecessarytoprotectthedesignateduseoruses,andanantidegradationpolicy.Thesewaterqualitystandardsservetwop