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14OC:T 11 '(35 f-17 02AM D0kNEY gF;F D SEYMOUR & F fld ITgEj')WATE.R TECH P 3 rA 003 <br />,Av <br /> � � Daaoradwr tf39� <br /> Sources and Regulatory Standards and Uterla <br /> Distribution In the Environment Thera are amen*mo faftral anvironmar4al or oaeupNftnv <br /> atarhdttida Ior MTBE.M it uiraum Cvtstamhwa Lml I <br /> UnmW mtt y rhamicals such as bwfflena and lard.whish In dririidog w#Aw has been pmmutdad or propose&to <br /> amur bosh naturally and as a mwk Of human adlvitlr.WIW f@dWW or slxW amblao Or Sakfalk oo or sMdards to date <br /> Es O ayMOMIC dramrssl wkh no natiurd 0OWCOar lef saaaOa'Uhp have been aahablisfhod for thk coeModnd. <br /> the pn e"M of WME arhd am At a dw. t Its bnpoetam tib <br /> dwIngun h bw*wn mulls aeshr moele aunaoa,d'hay tyma abaft which aro a n ecesdW OWPOAant Of$0 tick <br /> e at. It b panrOcdMy Impartam 10 Idea rlr athar mums of aaaeument procaas,am alae boded tar 1A'MF.F.PA has <br /> M ledear air,which Inside egaven sm kAa bullding published a nareentotemade DAAFr Lftma Hoot h Advie y <br /> miterWo,aapai.paned. and Omar hou"hald per• {HAI)for MTBE in*%kkq watar of 40 ppb.Nano Adviser" <br /> are nonenfaraabla guesrnaA hlMhlah an dsv*IQP td far <br /> Wlh(la there is a rawivaty Imp body at data mgaift eorwarrmMwle sgantR and bra assumed to b0 procealhre <br /> amlak;m and indgar au 6aveli for'VOCO (EPA TEAM$tudez argawas acemetae haat eEeds in hunsarho.Wfu&W saneklve <br /> abed htawaW VQC DaWbasoh there are trinuMly na swppppuladen.a Ltatme HA is used to nralQM 10011.10nn Or <br /> Cornpar"s data lar UTBE.This owid be due 16 OAa or mors t hmw oWnum.In Ufa New ErWgiand siatea.9Wdsfinas or <br /> of The hAdv ing: i)there are no was or ooruos$of MTBE nadan lawle haw bean emblOrd for MTBE In drbtking <br /> clher than g aaRm;2)I&vWa in ak am below the Sento of WmW,mr4ft Imo 40.100 ppb.Masamhuseft hors adopted <br /> daiaeAW.acrd 31 rrtrr*WM9 pragrarna have floc VM%W thin a graatndar'at6r tt=Wwd of So ppb. <br /> compound for anWs15. Mors research in this W+tr3 is tharafmre <br /> needed. In dart kWM ilhe FIA fir WISE am altawahm drib of f7-= <br /> fagl Wft was aaa ted W ePA. basad on a U&MMIC <br /> Mie <br /> Toxicity oT�'� iMalsNen many to I=whirl+Wam&W oneatheela athe <br /> rno:o sanshiva aflaet at conmm MD has dears ufting ft <br /> Om are aweR4 fsw wird B=ter MML Avaktb velus In risk amsamWt We an Irstarlm 1`16110 a&Aft far <br /> *xgww A m gime ma llrnttad m a MEW 10 E' <br /> WME's um ra ptlyadder UeWnaat;oho BWMas On MISOM we mmmamseft Dafarartrt om of pry <br /> fnoen k0g4esrth ettposum are ouflW ly erra&1bW-dtUMW Of (MADrtlfy tissued s mewwaMum(meq)proposim a <br /> MTBE iA humans area mpenmanW aamels we beaft IRataranw Doan fcr MM of 0.08 m0bafft. Erased an ft <br /> m mmertad below, aarhta used by EPA Bei dowktplbg fhb HA.TWA ar"10 <br /> In humans.nausea and vwtllnq have boon mpoMW w BWQ an order at eiagnRuda less stNtg W ilm 9PA's allowable <br /> aI'Faeda!rims oral exposus>r to MTBE whit+has heath woad does.due to averanays in inaarpar�sted safety toataoh MW <br /> pherraa iaml21►In trees ga[4tanee.dyffil oete of ago*oral <br /> AMahaErhitnk�t O,drapoiatloe r�urtgi4�and by MIlDf�. <br /> mrposvre In errpoefrnanW animals UNWO <br /> and tv>rs►ehd dgGul It Is agestea 1AM aha the rasrsbs d Iris iaxAV aWON lair <br /> sWorn daprwmn, k omd r en MM We evefaated bertha uvnWe arhd moulafery <br /> r*NW.A"a trhdm+an eN@=of MTBE appear 9e ba aorme+u ity.addkl nw haatth aftft WS boo i 0 W*Ume, <br /> ahmachwftm d others.pima*I mU d b aaaattur4e of eft. Ad ,aabn Id a is 4W esr1ronrrEt CW eLau'rder119 eL <br /> MT88 him also been ahrawn o the a mild tdda a ml ere kd'" bath to stow ad lateral I"ala li Wbr to be pr MV*atad in <br /> in rabWa tt iVrtW46 <br /> n w imps: lr►t hhtf nota tnm there we wWbWJG atlome <br /> asww&aad whh M1"BE.whick has a eifsrtaoefofoaa�► <br /> dbalironk odor.mvmoftm"Waft 1ma►W9W art bo POWAREV By <br /> deftewd at ao m rho pp66 NO studies AM avaiafde ie dace <br /> ragertdlrq the rda P + of WMrp.AOooedingly. ovol am on siberoIlt an SRW Jtiamhh <br /> F.pA n=alassdlad W SE in 04up d:bac 7W adeaft as Favivin"ago in Podbr K It+tolr& <br /> 0000ary is dead far agam for*"W4daeso d <br /> r r�ofton�r.Is few-EPA is a�hdiMM On aM� J +swr+lpa Ora fear 7+rahra> G�oegP <br /> todpolR-W im"h ofma of IWIM under the TmdvSal manOw >IaAAe ADUMM AvabL <br /> Can&W AA(TSCJ1);rawks d MON OUR"bra aaaror.W Ira <br />