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APFO Use and Expesnre Peer Review Rb Plncliit 27 Fed. 2001 '1 introductory Reminders Legal Considerations Focus on Methodology and Assumptions Leave prior history attlio door 000187 EID673918 Areas of Focus Mass Baiance oi appo la DoPant Fluoroprodacts DuPtnt OH pracdces and results Castamerlssiesandpraetlces 000188 EID673919 Scope of Review Worldwide DuPont Fluorepolymers - Analysis does not Include DDE Most examples will lie US specific - US market of fluorepolymer dispersion mirrors worldwide market - DuPont IIS OH practices are similar to those In the Netherlands and Japan - Most data is available for US 00018b? EID673920 DuPont Fluoropolymer Business Dverview 3 Major Manufacturing Sites - Washington Worts - DeidreckUhe Netherlands - Shim in la m i (50/91JV) 4 Tellen HMsiies sites - Partin, HJ - MscUtlan. Belgium - Shendian, China - Madurai, India 6 Maler Product Lines - Nomopilymars Granular ReaPowder Disomm(AH conuiaAPfll - CaPalymors RDRPlOsotnaMtanl PFttsuno Usoarsio) Teliti 000130 EID673921 Worldwide PFQA Balance- DuPoni Ruoroproducts Captircdand SenitoVtawte W ater H'w in ie n t ! JoA *te (134QC C apti#a j and Recycled to Soppier (53000) f DuPont U ee far ^ Pnxkjcing ' Tdon> Firw hes ; (770OIB) C ontened In Product! Applied to S u ta tra te (5400 b ) Centraci )Procesen (1000 b 000191 EID673922 Mass Balance Assumptions Dry Resin APFQCentent - Test measurements in Copolymers (apprex. Zppml - Poetine Measurements in Fine Powder KlOppm i - Granular uses very little in recipe, drying removes all - Used 7ppm average for mass balance 00015*3 EID673924 Mass Balance Assumptions Plant Emissions - Usage based an cast slieel anoints, recipe formulations; cress checked wtth percheles see Inventory differences. - in Process maasnrements used to characterize emissions rtc e ve n efficiency - ENileeerlBi catenations haseriei measereneets - Waste Charactemanaas specific iM ich m an u lac ta rin a irtani - Chambers Works WWTP dlstrlbatton base on one sampling event 00015*4 EID673925 Mass Balance Assumptions APFO content In dispersions based on: - recipes - measurements of A P I! in some products - expected distribution in other products 1999 HS sales used te calculate tetalAPFQ - Ratio of IS sales to worldwide sales used to calculate total APFO contained in dispersion products 0001?s EID673926 Campatiseli of BuPont with Flnarapalymer industry DuPont ARFO ISP lOOTonnes Im itad 53% Water 11% Air 2B% ta n 6% Reprocessed 23% Destroyed 12% In Products 13% FMG 200 Tonnes 60% >50% 25% <25% 15% 10% 15% 0001?6 EID673927 DuPont Hiiarepraducts APfO Cantalnmeat Faite tc*M: TMMitfMnlIMIBMlMliHwMWlttniC MMMrMOCMttMMMMta NMMU M IttlM D tite c B itH M rH tln n f RaiatacturM IicIHUn. A j UnMlinuM mta M nmnarwMeii n ie n h ru ta ti cistm w f la e lin s . aIMunMtlclMlIMWU*MHRiiihNretMaMnMtsfiliMtituimnWHnIMtiMM i i M i m Mm r s u a c a i stiosts as m m c m m w itc M a ta n M s m m w u r i w te tica M t im m M IM rM tM M t > nmilMssMimucmn * lit infestaiIMucBon > lansinfestailssuctan lim a i ttntisnm tan camstta nattas.im CM *m a anus statuss i tataM t i saturalacMfesl tu sta K S tm a a s tta f ta UfeawH n -- tta ta a ta a S m M H > rM n n > u ra < iK s m ls ttM )iittii r a n s n c il M m Dm n s s lta s k ta fe m m m caKrat issu es - iistcswmtunicfMeMnUricirtncis > uawniwracwHMnBMicatnn > tasuiulwnstruwan O O O l 5 > -j EID673928 DuPont Fluorouroducts Emission Control Policy [Continued] [m fts iM ca n n ai P o tic i: wromFPJtropriiaucBmacanon impiiausinp laoataMns cineom its a n a tnassloiis > sites ilcaasldai ressanaliDiiuosataMarttnilaiioni Mianammana antsstanreaucttonirmami. > Slits ilicamion mimatHIMealIssutslbapaul imHMMnsltnan tnaamtt m at attutimi xnkslanisauctionumana > sitts milusa tnaMmtanattwmatisiachntMKa matctnoatcatslaasala ;araOucaamtsslang ms te tta d u t i taucoore al is -N S fe n a ia n lM salica m ais m a n a m a c m w i tor most tin tu lin patita M ssle n i rtsictraa actlvtlas staila la onoritene Pasat at t o M law tai citarla: > latulatoryanatanman ant spacialteal Issuesattit ihm s usingstas Intuit ofmasslealtnila DaaawrantnantMiti ataM. rnaliHtarcnitfamlsslHinmtil rtiastaaafamMunaiaalilittactitalaniaNusaa o o o i^ b EID673929 Fate of APFO in Dispersions Ixperfenca in Teflon Finishes ised for in-process yield losses: - 1.5-11% loss to water 3 Classes of customer end uses: - Dispersion coating with no heating ol predict (<3%l - Dispersion coating wtthsHhseqncnt heating to dry (<5%) - Dispersion coating with snhsenient sintering ol product [>S3%1 0 Q 0 1 9 t< EID673930 Fate of APFO in Dispersions * Oispsrsion coating with no boating of product - All APFO ends up In product * Dispersion coating with subsequent boating to dry - An APFO considered as ah emission * Dispersion coating with subsequent sintering of product - Ml a p fb considered destroyed - Bata Iron studyby Paid Kreslc, CRtn 000200 EID673931 i Issues with AFP0 Fate Determinatien in Dispersions APFO will sublime on to f ucts/stacks if surface is cooler than approx. 128C - AO emissions on heating to dry may be lower Configuration of slnterlig ovens n ay allow AfFQ to be emitted j without goingrough sintering zone j - Bestrnctlon rate wanM be censiderabty lower Working with major dispersion customer to onderstand and sharpen our pencil 000201 EID673932 Fate of APFO in Teflon Finishes Dispersions are blended with pigments, binders, solvents and sold as a "paint" finish Is sprayed on to substrate with 60 to 70% yield - In >10% of use overspray Is contained feywater spray systems (mast ta watar, samara am - m remaining nse overspray Is captured oa ary inter madia usastta land, same taairi Finish Is cared at >350C - Same Issaas as wttfe dispersion easterners processing 000202 EID673933 Washington Works Personal ManltarlngAPFO occur. Engineering controls and or respiratory protection] taken in these cases | 000203 EID673934 ConoarlsM of 1189 to 2118 by lob Classificatisi [ppul *.Oc 1HA1 o*AA r C3''P .! FT I'"'! 7 f f i t * Adaii n F f' ' : FLA Morii":.-: - : iflW 16 FA 1 H PE ISP : l-t?D lfil-F lE P .t 1 d F'K P o iv k r - : Jo =--? .cii r t.-i T Ft fir.ifh ir.a .r F fackcut FE P ; ? 1 y k e t ' ! FEF i <t r u d e r. 1 FET v e t f i n a FEP p ysrkcut T e f r e l : PFA.- ;i F'FA/FEF b e a d FE F -\3 : = t y ' a: P-.B5ULT3 JLMMAFV - MECKAHS<:S ' 3KT FF.- - lie p , g r a n / " A IlMD u e n e ia . ahxtt. 13M3 pioce rs- E ll P3MA -T enera- a fa ft '3M& FEF E i 4.1 .4 ) 6 . 5 15 ) 0. 1 0. 7 1 .4 il 1 .1 -t ILA i : 000204 EID673935 HW *ffO Q o o c ltttit' SelectedtoYak 000205 EID673936 EID673937 EID673938 08PE Data Normalized to job start 000208 EID673939 Disclaimer on Observations `It is very important to recognize the serious limitations on the usefulness of thfstsicl data. These include the small size of most of the lata sets, the framant transfer ef site employees from one job to another, and the slow rate at which C-8 blood levels decrease after exposure steps." In the analysis completed, statistical riper was net nsed in all cases das to the small size ef the data set oooeoy Olservatlsns "Different employees with long enure in ;he same jo b sometimes v*ion marked differences in their blood level... This can be due tc either different work habits or differences m individual metabolism. ",\'ot so sure that this is the case based on 2000 data. ' "Comparison of average jo b blood levels from the 1995 and ' 1989 studies is badly confused by the fact that much of tbe I data is oot from tbe same people Levels m 1995 seem | som ew hat lo w e r o n th e average than in 1 9 8 9 a nd th is is p ro b a b ly due to reduced skin contact fo llo w in g lie use c f C - 8 i \ tq u id s o lu tio n s insteac o f th e d rv pow der '" j The indiv idual data po in ts tend to be tre n d in g d o w n b o m l 980- 1 ! 99U F ro m I 9 9 ' J-1995. n o con clu sio n s oan be dra w n fro m th e Jata to determ me i f the concentrations are g oing up c r slaying Hal la 2000, the general average has dropped <l.16ppnt from 1.5?ppm) but three job classifications have showa a tigaificant increase. For m ost in d iv id u a ls and jo b s , b lo o d c o n c e n tra tio n s seem to be s ta b iliz in g at 2 -4 ppm Job OSPE, autoclave operator data allows aa analysis to be completed normalized fo r low levels when they started in the job. Though confounded by the different time frames (spanning the time when dry and solution APFO were used), the data seem to point to suggest a steady increase in concentrations up ( about 4 ppm N ote item s in quotes are taken from AJ Piaytis sum m ary. M a y 996 B old item s are obse rva tio n s that are fro m the 20<X> sa m p lin g round. Italics item is an o b s e rva tio n fro m 1 9 9 5 th a t m ay ne t be v a lid based on JDim data EID673941 Next Steps for DePeet Fluoroptoducts Wart wbh bim ast disDarclsacusieinarta understand - txpasanpaieatiai - EnlitKaivt.Bomcil Understand fin is h cusiamer aapasura patantial by aienNaring intaraal labs Insiltuta tnUsstaas Central Pallor Dawalnp raara rabusi Ma-meniierina praenm Csntinea laadtrsbip pasitiai witb F N 6: he ilan a n t 5 palm pregrant-. - Ropredettiea study - UM ireaaiaittal fata I ETtacti - Kas> lalaaca across m dasJn - Phenaacakeietjcswart - C ofw Rm M tta caatam oiaat 000211 EID673942