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3 0 WEY SM CDeo. pChaVreleesPsencdhent 3MarSepesciaGlrtoyuMpaterial BEHQ- - 0,9-313 roger nay26, 1099 GFT cae S3 iCentr, BSidiingi2o0 51573 on FaxARNEOM cernepian 1399 Jui -b Fi 2:56BE=oHR--RCGOo-- 3T Document Processing Center (7407) ATTN: Section 8(c) Coordinator reN UOfSfiEcnevoifroPnomlleunttiaoln PPrroetveecnttiioonnAagnednTcoyxics \ & Epa-oTs (URRAERY 401 MStreet, SW 0008117717 Washington, DC 20460 Re: TDoScCkAet8N(oes).SSUEPHPO-L1E18M0E-N37T3A;L8NEOHTO-I1C1E80O-N3:74S;ul8fEoHnaQt-e0-3b8a1se-d03F9l4u;oroBcEhHeOm-ic0a5l9s8:373 = 3 Dear Si: = b3aMseCdofmlpuaornoychiesmsiucbamlist(tFiCnsg).thiTshneotpiucreptoosesoufptphliesmesnutppiltsempernetvailounsotsiucbemiissstioosnusmomnarsiulzfeonryelc-ent~= ~57=% 3M studies conducted to determine whether perfluorooctanesulfonate (PFOS) fon canbe 3 55 detected in tissue samples from different animal species." == These studies were designed to obtain initial screening data on the distributionof PFOS in biota. Samples within each study were extracted and analyzed using high-performance liquid chromatography-tandem mass spectrometry (HPLC-ESMSMS). The analytical methods used oinf"dSattaudcyollIe"c(teioang;lethaendreaslubltastraorses)unadnedrs"tSotouddyto2"be(eaacgcluer)awteer1e0 +st-il5l0b%e.ing"oSpttuidmyiz3e"d(awtiltdhebtiridme livers study), below was conducted using more refined analytical methods that provide accuracy for PFOS determination to +-30%. Although allofthese studies involve a limited number ofsamples, we are providing the results so that EPA can place in context existing knowledge regarding the presenceofPFOS in different biological receptors. Study 1:_Screening of PFOS Levels in Eagles and Albatross. Five samplesofplasma from `eagles and albatross were analyzed. Threeofthe five eagles were less than 250 days old; the ageofthe remaining two birds are unknown. The eagles were obtained from Northern PMiFnOnSeswoatsa daentdecMtiecdhiingaena;chthoeftahlbeatfriovsesswaemrpeleosbotfaeinaegdlefrpolmasMmiadawtalyevIesllsanodf 3in0,th3e4,Pa7c7i,fi31c and 34 ppb. Three out of the five albatross samples did not contain PFOS above the limit of detection (10 ppb). Detectable, but not quantifiable, levels of PFOS were detected in the (rleemsasitnhianngItMwLo)saomfpplelsa,smbaotwhascolalveacitleadblferfoomr abniarldyssuisn,deitrw1asyeanrotolpdo.ssAisbloentloycaonsmdaulclt ammatoruinxt spike analyses quTahneisieesdt.udies also include measurementofthernon PFOS compounds, bu these FCs have no been fully UMSayEn2v6i,ro19n9m9ental Protection Agency Page2 Data collected in supportofthis study isofsemi-quantitative screening quality with a margin oferror estimated to be +/- 50% pStluadsyma2:(_cAonlalelcytseidsoffrEoxmttrhaectBaslRtiecpoSretae)dainnd Esaeglveesn. sEaxmtprlaecstosffbraolmdtheraegelesapmlpalsemsaof(csoelalecetaegdle finroalmloNfotrthhe Aemagelreicpal)aswmearesaamnpalleyszesdcrqeueannetdi.taLteivveellys fionrsPeFaOcSa.glTehpelatsarmgaetsaamnapllyetsewwearsed1e2t5e,ct9e3d, and 215 ppb levels in bald cagle plasma were 165, 198, 494, 1047, 226, 371 and 375 ppb. All birds except for the one at 1047 ppb were less than | year old. oDfatearrocrolelsetctiemdatiendstuoppboert+o/f-t5h0i%s. sOtnudlyyi2so(f2s5e0mip-pqbu)anPtFiOtaStimvaetrsicxresepniiknegsqaumapllietys wwietrheaexmtarragcitned and analyzed. SVtaurdiyou3s:sApneacliyessoifsbofiFrldusorwoecrheecmhiacraacltseriinzeWdiiwdiBtihrrdesLpievcetrst.o SPiFxOtSy.liTvehresbaimrpdlsewsecroellcelcatsesdiffierdom satcucdoyr,diinngcltuodisnpgecSiaensdhainldlgCeroagnreasp,hiDcoulbolceat-iCorn.estSeixd sCpoercmioersoanftbsi,rdWshiwteerePerleipcraenss,enBtredowinnthis Pelicans, Great sites across the Blue Herons, United States and Brandt's Cormorants. including Nebraska, New The birds were found at a Mexico, Florida, Arizona, variety of California, oLonuliysmiainnai,maalndspFilkoreidrae.coIvnergyensetruadli,etshweecraeusceoonfdudcetaetdh, ttohitshdeasteabwiradss cioslulnekctneodwnu.sinAgltmheotuhgohds that have Screening been data fully with avamlairdgatiendofonerarorreleastetdimmaatterdixt.0 Tbhee+/d-a3t0a%f.or PFOS is semi-quantitative `The following table presents the study results Semi-quantitative Results ofWild Bird Livers Sample number SPECIES LOCATION | Liver _ [PFOS] ppb [1 andnilcmne [2 |sandhillcane | KeameyNe[41 | KeaneyNE| <LOQ | | [5 | sandhillcrane [6 | andhilicrane [8 | sandhillcrane [9 | andnilicane [30 | andnillcane | Keamey.NE | |CochiseCo.AZ | |CochiseCo.AZ| |CochiseCo.,AZ| |CochiseCo.Az | <LOQ <L0Q | <LOQ | <LOQ | <10Q | + "7 UMsayEn2v6i,r1o9n9m9ental Protection Agency Page) LOCATION | Liver [PFOS] ppb [12 | whicpelican | Calpain.CA[ 1203 | [5 |whitepelican | Calipatria.CA| 20 [14 |whitepelican |CalpainCA| 15 | [05s |whitepelican |Calpatia.CA[155 | [16 | brandrscomorant |Sanbiego.CA | 53 | [17 | brandtscomorant |SanDiego.CA| 46 | [18 | brandfscomorant |SanDiego.CA| 46 | [19 |brandfscormorant |SanDiego.CA| 80 | [21 |double-crestedcormorant| StMartinville,LA[ 59 | [25 [doublecrestedcormorant|StMartinville,LAT 170 [27 | brownpelcn | MamiFL | 3d | [28 | bownpelican | MamiFL | 15 | [2 | brownpelicn | MamiFL | iso | [50 | brownpelicn | MiamiFL| 48 | [[3& | sandhillcranc |SocomoCo.NM| [35 |sandhillcrane |ValenicaCo,NM| <L0Q | <L0Q | [37 doubleccrestedcormorant| NaplesFL | 10 | [38 Tdoublecrestedcormorant|__NaplesFL | 52] [Jdolemsedcomo | Raper Tl | 100 [40| doublecrested cormorant [41 | bownpelican | Calpain.CA[16 | [4 | bownpeican |CalpainCA | ~~ 36 | [4 |brownpefican | Calpatia.CA| <L0Q | [44 |brownpelican |Calparia,CA| 6 | [45 | brownpelican |CalpmiaCA| 32 |] [4 |greablueheon |StManminvileLA] 188 | [4 | areatbiueheron |StMatinvilleLAT 50 7] 8 |ambiebeo Mendel Jol | greatblue heron = . UMaSyEn2v6,ir1o9n9m9ental Protection Agency Pages SPECIES LOCATION | Liver ppb[FOS] [SU whitepelian [52 [55 |whitepelican |whitepelcn [s& |whitepelican [55 |whitepelican [56 |brownpelican [87 [58 | brownpelican | brownpeliean | FallonNv | | FallonNv | | FallonNV| | FallonNV | | FallonNV| |FtLauderdaleFL| |FtLauderdaleFLT |Ftlawderdale FL] lar] 362 | 927 | 133 | 291 | 104 | 75 | 71 | [60 | brownpelican |Ft LauderdaleFL] 01 |] LOQ = Limitof Quantitation (approx. 6 ppb) 3StMatibsetilciaelvmeesritth.at tThheeraebfoorvee,t3hrMeeisseitnsotfhedaptroacaersesionfsuifmfpiclieemnetnttoidngraawmcoorneclcuosmiponrsehweintshiavney epnrvoigrroanmmoefnstaamlpmleidniga aannddagneaolgyrsaisphtiocqluoacnattiiofnys.PFTOhSesleevaedldsitaicornoaslsdaatraanwiglelofpsrpoevciideesa,fuller ebacsoissysftoermcsh.arWacetewriilzlinkgeetpheEfPatAe ainnfdodrimsetdroibfuttihoen porfoPgrFeOsSsoafntdheosteheerffForCtss.inIfbyiootuahaanvde any questions in the meantime, please contact William Weppner at (651) 733-6374. aws Sincerely, Dr. Charles Reich Group Vice President Specialty Material Markets Group