Document JrqmXr22ynLz1pzp4j6GK7yzX
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/ E.f. du Pont de Nemour s & Company
INCORPORATED
DYE WORKS
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MAIL, TELEGRAPHIC AND EXPRESS ADDRESS PENNS GROVE, N. J.
FREIGHT ADDRESS C A R N E Y 'S P O IN T , N . J .
CQi Mr. L. ,'U Munson
or, .-ia. '&trk
Or. Ur. H. Oehrmann Mr. P. D. Heuaer
ioveraber S, 1939
kr, J. L. r.teeher organ,lo Chemicals
ills tn ito n , D e la w a re
tetra Ethyl Lead Hn.~rrd
For some time I have been concerned. about the
condition of health of the men employed in the Tatra
thyl Lesd Area.
t have known for year th?t t.n^re are certain locations in the area where absorptions nre greeter than
o th e r lo c a tio n s .
.
p<? have noted that mtny of the men employed on the ht ill Floor develop symptom of absorption -:nd even symptoms of intoxication.
In order to develop specific facta in con.'action with the health picture of the individuals employed in the Tetra Ethyl Lead Area we have accumulated information and have tabulated this information covering one year.
Part of this information was used in r- report u-e recently wrote discussing conditions on the third floors of the buildings. As we pointed out in that report some further protective means are necessary to prevent the de velopment of ease of lead poisoning.
la.our attempt to control the situation m the lead area, we have employed the following iaeonas
1. the clinical examination of each work men every three weeks,
2, Aided by laboratory testa which have included smears of blood for the de termination of stipple cells
N9524
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y. 4 count of the red and white blood cella to determine the development of anemia.
t. :^cretioa teats upon men performing each type of task required In the
rrnt% .
?hig latter ort has been performed by Dr. h. i >hoe in the Kettering -Laboratory at Cincinnati, uhio*
In nddliton, aa you know, the building;a hr-.ve
V;*n ventilated, f-nch utep In the operation h n * been eon-
:dciir-:c In detail end .^eciflo instructions
been
i.'CUf-d to operating personnel --nd to icehnnlcsl oerwonnel
, i o ' 'ctoTKi U T > k e e n * * o r k .
vt -ha n:T'p t ;-.* I 'tialy aea n o r u n c o n t i n u o u s l y ).;) '/itryinr ; l o o - f i o n * ; a i v i n p h r e lv:d air- c o n t e n t .
ClIn1cel informs tion obtained ;/ the uetbooa re .e -riuwer"ted rbove indicate that 'In sprit<3 of every ef fort kiwi haa been 'taken to date or hove not roconeliehed
our objective, massly the prevention of lord nrreosure.
-hen we dlscu&s lord sir -'I'lnlysc! it is not -;fficioni to note that, the averrre lead rir content ia ritnia hr fo v-oriclne; coneetrat1on nine at no time have the sv-jw v.; air rnaiyuee in the build!nr?a been -1 thin the mnre that 1.-> considered uaaafe by authorities on the ruojeet of lead, ooizoning. however, there ore assay timea -oen tn lesd r.ir content in '-pore the normal limit.
a have shown previously that from routine air
era .'.ino.tlons there were' aany times curing the past year
--.`hen th-o Conoentration was above a safe worklnr level
.
The attached table hows the number of times dur ing the past year that the air analyses for various loca tions its the lead area were above a safe working level.
In the Blender la partioular- the concentration at
various timea has been three times wnai in considered safe.
;i>nce, individuals* employed in those locations during those periods could nut help but absorb sufficient lead to pro due- symptoms of intoxication, -t the aase time in the ''lender there re individuals who have shown by clinical examination rmd from the laboratory and excretion teats ihof they hiv* severe lead, absorption and in one or two
instances lead intoxication.
K X 0 0 0 7 7 JC
> -
Aa a result of thea findings 'thing should be don- to correct 'the condition In the-present-blender.
There is no location in the entire lead area ~?horo we do not have clinical evidence of rather sever
lead absorption.
d0 have charted in the attached table not only the high air analyses but also th number of men in' each
location who nave shown objective -and subjective- yapto-
atolaay as oil as high secretion:teat.
<e hove pointed out in the last column in the table the number of men ho have a combination of these tlndi.K-'fi, m other vot'd the group listd in the last
column could, ell be diagnosed aa caeca of mild lead poi-
eouie . should Vila diapRorda be mad we could not; re fute it.
"Inca this picture dl closes the fact that there r: o'. twenty-four men who have symptoms of mild lead into je
c tton m believe consideration should be given to this -v U :.ject in order to mor adequately -protect the employees
Ht
O f th is * a r e a .
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w >OHK3 MEDICAL D M A I M ! 3X: e . .
.25a w
/<* 0 0 0 7 7 3
Y '\ h -
..
r ... ~
--
;
fmes Lumber of Humber of Lumber of Huab*r of Above ttm with Men with Msn with n snow
:
rVlloweble Objective OubJestive Higft
ing fell
Liait Syapto Symptoms Excretiona rouifive
!i
Finding*
3rd Floor
i
:-j ; 25
6
2
3
U;
j
3 ~
J feto floor!
10 VI
10 r
2
16 ? ! ^ i- - - ~ i ---- -!:
*> 3
> ; O - i-
0 ] V\ ?
.; rT
!1 I2
0
o
_. -
; io
.^ 1
's
-J,
i;V n o or
12 7
-?
1
1 i ! .!
0j
0
12 i
-r
f
0 T 10
6
*3 ;:>
-w 10 12
2
4
0
:Furnace
.8
2C* 1
1
1
i'
C 0 0 Blinder
3S 3 OI 168
3 i* 2 i?
3 3 0 9
2? 3 i 10 > 2
* Mot represented '
R 0007*38