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PERSONAL AND CONFIDENTIAL
CC: J. H. Todd
6. T. Rosenlund
JW.oTM.. CDaorrnderlely JT0...AAF... DEFroodusmgtahentry oTr..L.. ScL.hrePnokwer RN. Taylor
OFP. 3T.his2tilpetetdon
July 14, 1982
To: fron:
R. J. BURGER 9. 6. Loscuiavo Q8.0f
TRENDS IN BLOOD C-B LEVELS FOR VARIOUS TEFLON EMPLOYEE GROUPS
SUMMARY Comparison of data for sample results obtained up to
October, 1981 with corresponding data up to June, 1982 shows:
For 40 FEP Operators, blood C-8 levels decreased an averege 23%. Fdoercre8a5seFdinean Poawvdeerargeand18%G.ranular Operators, blood C-8 levels + Ninew pTrEeFviLoOuNs yeemaprlso.yees are accumulating C-8 at 2 lower rate than
e FTienveelsP.owder Zone 6 Operators still have the highest blood C-8
. BcloonotdinuCi-n8g lteoveldsecrienesfee.males transferred out of TEFLON are
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O1sCUSSION
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employee TghreoupasttaicnhetdheTaTbElFeLsONconDtiaviinsioCn-s8. in Blboloodod C-d8atadatfaorwevraerious Gbttsaelifnecas fraomvaltuheablFeLAItRoolproignraami.dingTheinFLtAheIRanparloygsriasm hoafs blporoodvenC-8 dDaattaa. reAclolrdebdlooidn FsLeAmIpRlesbywe6r/e24/a8n2alyazreed usbyedthien Ct-h8is spseucmimfaircy method COcotmopbaerri,son1s981arewitmhadecobrertewsepeonnditnheg ddaattaa urpecotordeJdunei,n F1L98A2I.R upTheto following observations are made:
+ FYEePvelOsperoafto2r3s%.areTheexpdeercireeansceingfoarn tohvoeseralOlpedrraotporsinwibtlhoodovCer-8700 duasyisngoftheserpvaiicreedist-tsetsatt.istically significant at the 0.05 level
+ CFi-n8e lPeovwedlserofOpe1r2%a.torsGraarneulaerxpeOrpieernactionrgs aanreoveexrpaelrliendcriopngina bdlrooopd osferv22i%c.e isThenotdecyerteassetsatifosrticOaplelryatosrisgniwfiitchanto.ver 700 days of
+ B7l00ooddayCs-8 oflevseelrsvicien) neawreTEiFnLcrOeNasienmgp.loyeHeoswev(etrh,osethweiitrh lelvesesls thaare Tihnecreaavseirnagge atratae solfoweirncrreaatese thfaonr tThEeFyLOwNereFinien PproewvdieorusZonyeear4s. 0O.p0e0r1a9torpspn/udsaiyn.g daUtsaingcololnleycte1d982up dtaota,Octtohbeera,ver1a9g81e wreaste of increase has dropped to 0.0004 ppm/day
Fin-8e lPevoewldse.r ZoTnheey 6avOepreargaetor8s ppcmontanidnuerantgoe haasve hitghhe hasigh2e6stppmb.lood TTEEFFLLOONK ZZoonnee 46 OOppeerraattoorrss. havTehishigisherbecbaluosoed CC--88 alcecvuemlsulattheas i mthuechboldoyngeorverthatnimeZ.one Zo4neOpe6raOtpoerrsa.torsOpehraavteorwsorkferdom infouTrEFLotOhNe Dqiuvainstiiotnisesatof WCa-s8hiningtotnheiWrorkbsloohdave very low but measurable
+ BanlooadverCa-g8e le19v%elsoveirn afnemaalveesragteran1s6f1-edraryedpeoruitodo.f TTEhFiLsONincdlruodpepsed oofnlyC-8feemlailemsinawtiitohn 0.i1n pfpemmaloersmowriethC-l8essin thtahneir0.1blopopdm. isThveeryrat Slow. It is essentially zero for this group
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The diligent efforts on the part of TEFLON Production and
na blood sampling programs should continue at their present rates. Technical to reduce C-8 air levels are paying off. Significant
decreases in employee blood C-8 levels are now being seen. Efforts
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must be continued in the TEFLON Divisions to control C-8. Both air
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oItverilsooikmipnogrtainttemsto anpdrevtehnuts omivneirmcioznifnigdencfefecwthiivcehnecsosuldof lecaudrretnot prograns.
Attachments
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SUMMARY OF WASHINGTON WORKS EMPLOYEES' C-8 IN BLOOD LEVELS
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GROUP
SNOA.WLOEFS RANGE (ppm)* AVERAGE (ppm)* |
Fine Powder/Dispersion Zone 6 Operators
21 :
1.3 - 26.0
8.0
ep Zone 6 Operators
1 0s - 0s
5.0
Granstar Zone Operators
0 02 - sa
27
Fine Powder/Dispersion Zone 4 Operators
37
0.02 - 6.9
1.9
TEFLON Polymers Production Foremen
23
0.1 - 2.8
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TEFLON Monomer Operators
31
0.2 - 6.5
1.1
Granular Zone 4 Operators
17
0.01 - 4.3
0.6
Laboratory
o 00-52
0.
TEFLON Copolymers Production Forenen ws 0.03 21
0s
TEFZEL/Telomer "A" Operators
26
0.02 - 1.8
0.5
Hechanics FEP Zone 4 Operators
25
0.01 - 1.6
0.5
w 0.00- 16
0.
Research (Engineers & Chemists)
8
0.09 - 0.6
0.3
TEFLON Polymers Technical
29
0.03 - 0.6
0.2
TEFLOW Polymers Haintenance Supervision 15 0.06 0.
0.2
TEFLONS Copolyrers Hotntenance Supervision 2
0.2
TerLON Copolymers Tecmical
1 Wo 0.8
01
LUCITE Zone 4 Operators
VELRIN Zone 6 Operators
2 vez- 0. or 4
0.02 - 0.2
0.08
Filaments Zone 4 Operators
21164 20ne 6 Operators
3
ND. - 0.09
0.05
2 0.02 - 0.08
0.03
* OontlLyrrtthaeemorsatngecsurroengntavbelroaogdenC:-8 sample result for each employee was used to
" Tot omprsn) Bro inulin Tiefun Senior Laboratorians, Lab Analysts,
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*** N.D. = None Detected (< 0.007 ppm).
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