Document B8RK39o8yZV5QpmYp4NjVezkm

WHAT HAPPENS TO PC5s IN THE SKVIRONMSNT? By Dr. R. H. Munch hpBbtoaereveccDseaaeuDunbssTeeet,copsdtmhooameetlyayeacscthouaclnaosupsrhbiseoneecwatotdetftedhhteaaccbott tinepFtcdhhCeeeBrynnbsy.ydmlsotahIyedtinhisasiaasvtmph,eepeset.hieaamnernvraiefilrlrafoyoormntrimecb,atieholneiltmomeg(pePniotCcvhrBaoitraldso)nsne,tmfafteonendct.ts bcPaerneonbba*pbeulydtonIthneetoinmtohtshete eenffofvelilrcootwnivmineegnwtwawyayi:ttoh wdohatth iiss fIosuntod cthomerpearneoww.hatThhaiss o ahambrppTddosrv"tehaoeoaurrhaflamooo-egmklctetlrwailendbeeicoeooooddhpuavcaoclwuoaeobUcoelrunmcsmneiigllre.lydnndcuddesnometScs.,vliloanoookrfsc."eiefnratagmstuoroeaeoocgppslItrnmmgwhdeinrecfrratesdeoeme.edneaelnsd)eitrenhcehopeegPbutniioynnneCsrfrcantaohmhvvr3tlaegdeoooceiilrorregmaape,utloodhocwssrfrlonndrahgaosreseolmmedmadoirrmmchmebaeguteepcspeensncnulimnonreatttltshoosonaa.tsltothye"dlesrtflyoeabsadugmepOedsrPtce(oaessrsCrengipmaeaooIf3rrlmmnlfsodmetapeteheeeusffdepainer"aortcarxlshenaaeearttteednoasidastutodeictmtttrionnhhhpe,ftttmigaohferderxekoaoosairta.thneraydtifttfnseanheoeluaIUscttafchhnUnrao.fhrttsrhaeesnicdt.ilooneoth,tmhnigMaS1cierloteooiien9.nsofbndmtrv5tnhhpaoipvei7inmsrsetratsrfif-oaehroteoo7ateoanndhedMd2rrlnntmceoepouu.omoichmsbef,ccaeneo1irlettnospmsimoR9tnaltohghb5fo,ftnoenrae7iregitlosnpaootonsttmtehogdhtc-ryrreaeielionnsianf-,ly l' - mToomiif(nsi1hffoiee-xsl8sf"tttdhioiue)vma.antrehgentviseealimarIarnlnonoyredanrfsretomttaeosqsPrlrediCulixynAceaBi rtrlsiareatcoledwghitlcnoyrllieoAdotheopaarrrtigurounee1crtcmehd2shle5coal o4aonisrtstamrtoimmo1mnpaa2rpaeans5rltlc^ie2epse,coscroosen.iO"wntransi.e,lemtbersArintvaphehttancheesataoeilvlnvMolcyeyeofsourlrtnerscsteshdemoasemenpotfxthpolrohpeoaenocemrdmtuirhrsiiloanoeoesldgnmnuoecrcgoeaehtlonosdndgdpasimaaeisnnmbcect roetpiiacfntblvhovaetueueesri slnstryiaetogne ADM 000266 Tfrhoemho1m95o7logto co19n7t1enatnsdotfh athteomf aAtreorcialol rpr1o2d5u4ceadre intabthuelatUe.d Sb. elow: } 1 Homolog 0 1 2 34 5 6 7 8 U. S. Sales 1957 - 1971 .. .0.1 1.3 14.8 29-9 21.9 . 16.1 10.5 4.2 Aroclor 1254 * 1.1 . 1 .1 .5 1 21 48 23 6 ND hopoacisqbltIonhhoehttffruowmeeliwoorctttiteohhhsaendrirlseeeiteoteneihhgdagoseorloscpaironemfharptwhfalcdlaoaeopoomoteraihrtmpoefrrntoieeilgnrvtronvhnoaesttleheeorxitonaepmatigmhipcrtrftsnoeraoodar.oalgomtcantomteoceetgutasLelestflcsehyshns.tahseesboitbssgestafaohhsfrtcrooelititatoohnmrorraettoeaosftorysnesrPtilpyhoCAa.lrogeoBltfwriordsnmoaHdrueascataentertioleoansbtvogwisdcilrroerepwtahovhm1etdlhnehooo2frairmimaocs5,frgtnheiir4ehionit.ntthnewtft,tthhoeaeeewwaTIcrthsthmchohohoretuueimheapacirrlrghendetleesaeahftrotemmrIafetiienoipraravmvuevycplesepo,oeaetbvusn,ralscdbaoeerebeneuetlsldhddtci.tlhshoaeerheen'stgairuisaeTiertonxaslhfcnedaooetthestifroedeenr, ACM 0C0267 P4re,se2n7c,e 3o2f, 4P1o,ly4c2h,lo4r4ina(1te9d71B).iphenyls Residue Reviews 2) TBRP.oripoxWhgice.roenlsyoRslgsiysine-b4rB,tohuue1lg9lhD2e,,teitn1Pe9.ro9mRfi(ne1Eia9cnt7hivoeinroa)nno. dmf eHtnh.teaSlP. CoSolycncotahttmloi-rnianCtaiuotrenrde&nt * 3) GbcJyoa. utiECro.nonmaBlboaiofngefldPeytohG,leyaWcsA.-hOLlALoiCq.ruinRid2aet,ieCcd2hh5erBo1l m,iapan2htd5oe2gnEr,ya.lps2hC5y7irn-oM(m1Tawa9srso7t0ieSB)p.a-eldcItrEdoaemgnleetti?rfyi4) PAB12oil1pub6hreerMn(t1yaC9lj7.oMr1T)iC.axsotumarpneodn-eRnEutsndvoiilnrfonHam.TedenectVaholnsiSc-caileCnPhcoaelrya&cchtTeleorcirzhinnaaotitloeodngyo5f, 5) oPJufodlytihtchehlAAoO.rAinCAarmteodur7Boai3np>dhe7Jn6ey5rlrsy(1frA9o7.m0B)D.uDrkTean-dMIettshodAnfaolorgSs e-paJroautirnngal 6) TnIaaontxeidPcirBteyispt-ht,eEnDyn.lvsiJroi.nnmJWeefnifltdraelBriPierosdlslaunitnido nNB.r1iW,ta.i3n>M.oa1on5rde (T1- 9hP7e0oir)l.yAchrllaonri 7) VoP(1f.e9sEZ7tli1ntcV)vi.cidoreosn-mPienonltSyaolcmhCelooFrnirtneasamhteiwndaattBieorinpahn&ednTyMolsxairacinnoeldo-gOPyirsgh6ae,nso4c6-h4lB,oru4iln6l7eetin 8) FPCCBEss &- TWhaeshEinnvgtioronnmMeany,t 1-97I2nte-rdCe0pKa-r7t2m-1e0n4t1a9l T- aTskabFleorc6e, oPn. . 93. \ I ADM cooibe I WHAT HAPPENS TO PCDs III THE ENVIRONMENT? 1. PCBs ARE MAN MAOE. 2. WE CANNOT DETERMINE IF THEY DEGRADE IN THE ENVIRONMENT FROM THE TOTAL CONCENTRA TIONS FOUND THERE. 3. THE PCBS ARE MIXTURES OF HOMOLOGS.. THEREFORE, COMPARISON OF HOMOLOG RATIOS IN "ENVIRONMENTALLY AGED SAMPLES" WITH HOMOLOG RATIOS IN MATERIAL PRODUCED CAN BE USED TO GAIN INSIGHT AS TO WHAT IS HAPPENING IN THE ENVIRONMENT. ADM 00C269 I o - 36*r HOU DO UE GET THE DATA NEEDED? 1. PRODUCTION FIGURES FOR ALL MONSANTO PCD PRODUCTS AND HOMOLOG CONTENT OF EACH PRODUCT ARE AVAILABLE FOR 195771. WE USE THESE DATA TO CALCULATE HOMOLOG RATIOS FOR 1957-71 PRODUCTION. 2. EUROPEAN PRODUCERS HAKE SIMILAR PRODUCTS IN ABOUT THE SAME RATIOS AS MONSANTO. PRODUCTION BEFORE '57 WOULD NOT AFFECT THE FIGURES GREATLY SINCE PRODUCT RATIOS WERE SIMILAR AMD PRODUCTION SMALLER. 4. ANALYSTS GENERALLY AGREE THAT MATERIAL FOUND IN "AGED ENVIRONMENT AL SAMPLES" IS SIMILAR TO AROCLOR 1254 OR IN RARE CASES EVEN TO .AROCLOR 1260. \ 40 0 0 i70 ! I o ADM 000271 A COMPARISON OF THE HOMOLOG RATIOS FOR PCBs SOLD WITH THOSE FOUND IN AGED ENVIRONMENTAL SAMPLES HOMOLOG * 0123456 78 U.S. SALES n , '57 - '71 0,1 1.3 14.8 29.9 21.9 16.1 10.5 4.2 1.1* AROCLOR 1254 <* <.l <.5 1 21 48 23 6 NO :CfreD- ?*?0oo CONCLUSIONS T. THERE ARE MARKED DIFFERENCES- BETWEEN THE RATIOS OF HOMOLOGS . IN PCBs FOUND IN "AGED ENVIRON MENTAL SAMPLES" AND THE RATIO OF HOMOLOGS FOR MATERIAL PRODUCED. 2. THESE DIFFERENCES CAM .BEST BE EXPLAINED BY ASSUMING THAT THE PCBs WITH 3 OR LESS CHLORINE ATOMS PER MOLECULE DEGRADE MUCH MORE RAPIDLY THAN THE HIGHER HOMOLOGS. 3. THE HOMOLOG RATIO DATA DO NOT GIVE INFORMATION ON THE RATE OF DEGRADATION OF HIGHER HOMOLOGS. HOWEVER, SEMI-CONTINUOUS ACTIVATED SLUDGE TEST DATA SHOW THAT THESE TOO DEGRADE BUT AT A SLOWER RATE. il 11111 o AO* CCC213