Document zdDe1weQ5pMX5GaXjJ50prgGm

POLYMER PRODUCTS DEPARTMENT MANUFACTURING DIVISION AR226-2008 March 19, 1990 TO: FROM: J. 6. LOSCHIAVO - FIBR - SPRUANCE R. D. LANYON - PPD'- WASHINGTONWORKS W. E. CRAWLEY - PPD - WASHINGTONWORKS H. A. SMITH, REVIEW OF WASHINGTONWORKSC-8 DATA PERSONNEL AIR MONITORING AND BLOOD DATA Following is a summary of our.meeting and the conclusions reached. Please get back to ms with comments as soon as possible. I^ve attached the package of backup data used at the meeting. C-8 personnel -air monitoring data taken over the period April 1988 through September 1989 (220+ samples covering 22 jobs) and all personnel C-8 in . Mood data going back to. 1979-80, were summarized and reviewed. When correlating blood data with a1r monitoring data by PERS jobs; the only people included in. the blood data base were those who had been in the indicated job ' for years; had not moved all over the Fluoropolymers area; and are still in the jobs. The task of interpreting the data is complicated by the fact that the . air monitoring data is recent whereas the Mood data (because of the very slow drop off rate of C-8 in the Mood) essentially reflects exposure dating back to the "early days". Following are the conclusions from this review: 1) There is a correlation between C-8 personnel air levels and C-8 in blood levels, and between skin contact and C-8 in blood levels. Table 1 summarizes the blood data/air data/skin contact potential by PERS jobs. It is interesting to note that the jobs that have high . C-8 in blood populations and that are not in compliance with the AEL, are those jobs that have potential for C-8 skin exposure. Figure 1 is a plot of personnel air levels for a PERS job code vs. Mood levels for the same jobe code. Figure 1 also shows the high blood levels that do not fit the curve which we attributed to skin contact . ^ on the part of the specific individuals. a . . 0 2) Figure 1 would indicate that exposure at the AEL of 0.56 ppb would B equate to a blood level of -3 ppm. .^ EID072662 J. G. LOSCHIAVO, ETAL - 2 - March 19, 1990 3] Background blood levels* for peopTe just working in this area of the plant, are In the 0.1-0.5 ppm range. 4) The effect of skin contact is strong and apparent as demonstrated in Table I and Figure 1, especially documented by Jobs 08PE, 08PH, 08PF. Skin contact results in blood levels in the 7-8.ppm range or way higher. This position is also supported by 3M and by review of all the other blood plots.we have; where some people stand out with very high blood level$. 5) A side observation - people working in a job seem to jump to the blood level for the job and stay there. 6) Drop-off rate .for C-8 in the blood is a half life of -4-5 years or more. This is based on a very small amount of data on pensioners and on the observation that there is a slight perceived decline in workers in the various jobs. 7} Because of the slow drop-off rate annual blood testing is telling us nothing. .We should discontinue blood testing (unless an employee requests it) for now and reconsider taking another "snapshot" in a few years after we have completed our process improvements (e.g. use of C-8.in solution). when we elect to do more blood monitoring, we 'should sample as many workers as possible. We would need the people new to the area as " well as the older workers because the older workers would still be on the slow decay C-8 in blood curve. Even at best the data will again be difficult to interpret because of the frequent job-to-job movement of people within the fluoropolymers area and from area to area on the Washington Works site. Other confounding factors that will continue to add to variability are individual work habits and individual biological responses such as excretion rate and retention in body other than in blood (e.g. fat). . . 8) Eighteen of the 22 PERS jobs were in compliance with the AEL for C-8. Four jobs were out of compliance or marginal. All four jobs involved potential for skin exposure.. Use of C-8 in solution should eliminate the problem for three of the four jobs. HAS/is Attachment EID072663 ! 1 i M H 0 3 !' M m w to 1 ^sr ^,.- TABLE 1 ASSESSMENT OF BLOOD VS. ATR DflTA M . 08PE Po1y Autoclave Operator 08PI Poly Dryer/finvironntental Control Operator Blood /npnil (3 (7 . (Data showed two populations) 2 95 a'tile Air fppb) 0.66 0.25 Handles C-8 '-Potential for Skin EXDOSure Yes* No AEL Compliance No Yes " . .18PB' 0:5 FEP Extrusion/Oven Operator . <0.03 (ND). No Yes 08PH (1 0.08 "Yes* Yes Poly Dispersion Operator (7.5 (one perso n) (Data showed two populations) 08PF Poly Polykettle Operator (2.5 0.27 (8.5 (one.persorn) (Data showed two populations) Yes* 'Marginal : ^ 08PS 0.4 <0.03 (HD}; Mo Yes Sranutar TA Zone 6 Operator- 08PK Granular TA 3rd Floor Operator 18PA FEP Polykettle Operator 68HE. FEP General- Day Mechanic 0.1 . No data Mo data -.05 5.97 . 0.58 No Yes* Yes . Yes No Marginal * C-8 In solution use should eliminate this problem. Crawl ey/Lanyon/Loschiavo/Sffilth ^OOOdfV E1D072665 ^1 -f <5 <L ^i IAI ^ . ^ ^ f (y lU ^ /->. ^ 6 (n ,' ' u ^< ^j ' ' AJP000247 ^?s %A> . ^ -- ; ,.';-?-.' '.,';' :; :.;: ;;:; .; ^: . ;:' ; . ...;;..-.. ^. -,. , , -....-.,..-- . '. , , ., , ' .:.;.':"....':.: . .'.' ,' '. .'..'.. ." ',. '. .'::;- ::::-"::" ::: ::;-: ? 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' -i--Li ^c-- --v ----, =4i ^fe t^.-^ -7"- H---------- -4"- 1------ "S. wssf*'S S: ----- TT ' > t1 1 ~i---- G^ C0'' ----f ^----f :i^ ' I,,, ^-J-jn^ "--TI-------- /o /.r 3' AI- ja ^.r I/A vsr "JoT/tL. HJQ. o^ MOUTHS OUT or d"? yfoRR. . W y/6fr7 EID072667 ^"/ ci-^r j?/^ -Po.ttL.5K--thf^y^ iLdjtJL O^^cU. ^Un^a 1^ WJL^t-*^ t^Sct^s^n^ . C-8 PERSONAL AIR MONITORING DATA WASHIN8TON WORKS - SPD POLYMERS AREA (1988/89) JOB NAME/PER8 CODE ( AEI- IS 0.56 Pf'B) NO. OF SAMPLES BEOM. MEAN (PPB) MAX. S12T 93TH XTILE (PPB) . ACCEPTANCE (PPB). ^OLY FINE POWDER/ 3ISP. FOREMAN - 08AA ^OLY AUTOCLAVE . 3PERATOR - 08PE ^OLY POLYKETTLE 3PERATOR - 08PF '\ ^OLY DISPERSION 3PERATOR - 08PH 'OLY DRYER/ENVIR. CONTROL OP. - 08PI 11 . 16 10 IS 15 0.04 0.10 YES 0.14 ^O^' r^^s^ ^H\ ^s^ Ov'S-S^M^S^^ 0.11 " l--S --^'n.- p^ ^'^ 6-M^- ?)-,,,S, 'T-,i.fwiftJ) y^^^"ppn^. 0.06 '0.2& -) ^esssr- r ) COTy-y^* o^,,-^ o.^ ' ~^^W (QrW- g- agj '^. '- ei.'r^yfwn. 0.03 0.09 -' YES . 0.08 <0.03<Pr^/ p#s0-.^~3t4fu) ! ^ . ,, ^J""-rs-yppYME- S \ , ^.ZS - ^OLY FINE POWDER 10 ^ACKOUT OP. - OSPJ sSiih ^LY MAINTENANCE 16 '"iSy ^REMAN " 58AB '"0.03 <0.03 0.18 0.14 YES YES ^0.03 0.15 ^1OECLYHAGNEICNER"A5L9MDGAY 11 <0,03 0.14 YES 0,24 ^OLY QENERAL SHIFT 10 1ECHANIC - 58MD <0.03 <0.03 - YES <0.03 'OLY e&I PROJECTS/. 6 ;010 MECHANIC -'58ME 'OLY PROCESS E&I a "tECHANIC ~ 58MB l. 3RANULAR TA ZONE 6 7 3PERATOR ~ 08PQ 3RANULAR TA THIRD FL 4 3PERATOR - 08PK 3RANULAR TA PACKOUT/ 10, WRTAC/PRESIN ~ OBPL <0.03 . 0.05 ..YES "0,05 <o.os 0.08 YES ~0.08 rs- -u. h l 7" <0.03 / <d.03;' ^'/fti.YES ?. ---e-4 . <0.03 Cfe^teff)--%-*&r -I. I>PH f---&A. ''0.03 0.05" : YES* ~0.09 <0.03 <0.03 yes t^j " . vo <0.03 CWith two addifcional sample results) this job will likely be in S12T compliance. J.8. Loschiavo October 6, 1989 EID072668 /r? '"OloCllf. r '" < , 1 i '>i J^O-I-IH-- Ui,,1>tKH^ f . - I . -*~-^'-----CFT^"^ ' . . C-8 PERSONAL AIR MONITORING DATA . WASH INTON WORKS - 8PD COPOLYMERS AREA (1988/89) . (AEL IS .0.56 PP8) JOB NAME/PERS CODE NO. OF SAMPLES BEOM. MEAN MAX. <PPB) . (PPB) FEP- FOREMAN/PROJECTS 11 /SAFETY - 18AA r 0.03 0.10 FEP POLYKETTLE OPERATOR - 1SPA 13 0.04 4,0 PEP EXTRUSION/OVEN OPERATOR - 18PB 7 . ^.OS^'^^O.OS PEP MET FINISHIN6 8 OPERATOR - 18PC . 0.08 -e^ 0.12 FEP CUBE/PACKOUT OPERATOR ~ 18PD 6 <;0.03 0.03 COPOLYMER8 GENERAL 7, SHIFT MECHANIC - 68MA FEP E&X MECHANIC - ? 68MB <0.03 <0.03 0.06 .. <0.63 PEP GENERAL OAY MECHANIC - 68ME 14 0.07 O.S1 S12T ACCEPTANCE 95TH XTILE <PPB). YES 0.1S [SQ^~5.97 ) r---"^"""---- YES <0.03 YES 0.-15 YES ^0.03 YES . "0.06 YE8 J^esT- A ^toA-y^i. <O.OS o.5B --------- ' ' . t J.e. Loachiavo October 6, 1989 - 0 0 " s v 0 EID072669