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000708
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ARRAG - 3469
CHAMBERS WORKS FLUOROCHEMICALS IN BLOOD STUDY
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(1) RESULTS OF STUDY ~ LEVELS OF FLUORINE IN THE BLOOD OF
CHAMBERS WORKS EMPLOYEES, (INORGANIC AND LOW VOLATILITY
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ORGANIC FLUORINE)
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@) InousTrIaL Hroiene Survey
HanueacTure oF
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Hanuracrure of,
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R. D. RrcarDsON/AMB 18 May 1979
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ORGANIC FLUORINE IN BLOOD
Group (SAMPLE SIZE)
3M Dara
GENERAL POPULATION (106)
PLANT OFFICE WORKER
PLANT WORKER ~ GENERAL
PLANT WORKER - LONG
SERVICE IN F/C AREA
NEWER PLANT
OLDER PLANT
Ppp OReaNIC FLUORINE
01002 10 9,13
0.021% 0.01 To 0.06
0.15 10 1.18
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0.970 9,1
5971071
DyPontData
WIL)MINGTON CONTROL GROUP (25)
CuaMBeRrs Works Group (55)
+
: @30F 25)0.00-9038 =
(Gh oF 55) 0 0,37 +e
+ [0.151 `
Concrustons
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@ CHAMBERS WORKS EMPLOYEES DO NOT HAVE ELEVATED LEVELS OF ORGANIC
FLUORINE IN THEIR'BLOOD AS WAS REPORTED FOR 3M WORKERS.
THE MEAN VALUE FOR CHAMBERS WORKS EMPLOYEES WAS SLIGHTLY HIGHER THAN THE WILMINGTON CONTROL GRoup [0,15 versus 0,0941, BUT ALL
VALUES ARE CONSIDERED TO BE "NORMAL" (<1 PPM) EXCEPT ONE VALUE
IN THE WILMINGTON CONTROL GRouP (10.6 pew).
* BY DIFFERENCE BETWEEN TOTAL AND INORGANIC FLUORINE
** [MEDIAN VALUE]S
*** EXCEPT 2 VALUES 10,6;
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0.78
**%* Except 1 vaLue 0,89 ppm
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CHAMBERS WORKS FLUOROCHEMICALS COHORT
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Chasers HORKS EMPLOYEES WERE IDENTIFIED HHO
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(1) HAVE HAD JOB ASSIGNMENTS WITH POTENTIAL FOR EXPOSURE
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(2) ARE STILL ACTIVE OR ARE READILY AVAILABLE ON SITE
Boop SAMPLES TAKEN AT REGULARLY SCHEDULED PHYSICAL EXAMINATION
]
Jos
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Nowser Nuwser Ciecken
Ass1eNENT Location IDENTIFIED Tole (@
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Jackson Las,
50
18
G6)
TechnicaL Las.
DEVELOPMENT Spec. Cem,
36
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ManuracTURING WEST
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MANUFACTURING SPEC, CHEM, East
8
6
an
2
GD
Other
29
5
an
199
55
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@ INFORMAL CHECK WITH SUPERVISION INDICATED THAT GROUP (55) .
SAMPLED WAS REPRESENTATIVE OF COHORT (199),
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CONCLUSIONS - THDUSTRIAL HYGIENE SURVEY
HI --\
1)
ENVIRONMENTAL MONITORING DATA SUGGESTED CONDITIONS
NANUFACTURING FACILITIES TO BE NORMALLY <5
J IN THE
(8 HRs.) HOWEVER, EXCURSIONS To RAISE THIS LEVEL 13
30 70 40 v/s [HS wns.) wave sen osserven on
MULTIPLE OCCASIONS,
2) ADDITIONAL ENVIRONMENTAL MONITORING REQUIRED TO IDENTIFY
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EXPOSURE SOURCES
(In Proress)
AND
DEFINE
POTENTIAL
EXPOSURE
LEVELS.
3) HOST PROBABLE EXPOSURE SOURCES ARE DRUMMING AND-DEDRUMHING
FACILITIES, AND TO A LESSER EXTENT SAMPLING EQUIPMENT
AND PROCEDURES.
4) DRUMMING, BEDRUMMING AND SAMPLING FACILITIES ARE OF A LOW
STANDARD FOR CONTAINMENT BY ENGINEERING CONTROLS, (HoT
ENCLOSED, NO LOCAL VENTILATION)
5) A CONTRIBUTING FACTOR IS THAT THE FACILITIES ARE ENCLOSED
IN A BUILDING, PROMPT ELIMINATION OF PROCESS LEAKS AND
A tei ~ MAINTAINENCE OF VENTILATION IS ESSENTIAL)
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PoOnTENTIAL FOR EXPOSURE J > --, se `LIMITED, AVAILABLE, ENVIRONMENTAL DATA SUGGEST THE
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1) DisconTINUE PROGRAM TO DETERMINE FLUORINE In BLOOD, .
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2). ADVISE EMPLOYEES THAT BLOOD ANALYSIS PROGRAM HAS BEENDIs-
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CONTINUED DUE TO UNIFORMLY FAVORABLE RESULTS.
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3) UPGREAXDPEO'SUFRAECILLIITMIIETS,GUIIDFELRIENQEUSIRWEHDE,NTToHEMSEEETISHSAUSEK,ELLLABORATORY
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18 May 1979
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