Document Jrp02MjrQD19X8NkoEgGm0576
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:- ;- Amm^hi eoadaet*4 by tha IJaBtri*lS*ltli Sacticra
Coap*aj on April 11, 12, *oA 13, 1939* *b
wmy;
lp*41 9| 10# U ad 12, 1935* .........................
A description of the plant and nanufanturing operations were irn in the first report and as these have not been greatly changed, the descriptions *111 be oaitted*
A amber of locations stapled during the first tarrsy there no health haaards were detected were oaitted at this tins.
Tbs following tablet shew a eoaparltea of the findings for the 1935 aad 1939 lurrey!.
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33-0 ja.o 21.7 1L.0 J9.0 66. J
22>i a.i 255.0
3.9 93.0
*
39.0
21.5
29.0 5.1
5-35
1/12/39
35.4
3.5
2.2 1.07
lAl/39
67.9 69.7
5.9
33.4 7.1
i.,js. ad 1/12/35 U.O Bklaf iliSe.tjloJililAl/.a1Jsndwt*s1taWc ,' . u.d
1WJ.0 24.1
1A3/39
22.0 161.3
1/12/39
3J.0
60.6
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./dept* m%1i takaa
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iAVJ7 iAi/39
33.5 40.0
4.3 3.6
Omij 1 *A.n la thi* w>*f not opo ratio*.
Ds*piaf cB*at iota Mu; rood flow
atr* uad Loataad 0/ tUUA(
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1 mb - latonlttoat operation. Ezhauot. appUrt oT*r ehartia* hoppor.
1 m . laUflittMBt ApantlM, Tstiwat "* applied at eharflif beppor. Ekbaatat fa* data mt tli|i aperate offlolaaUy, Wflt* clogged* Duat dUafevfad directly ta th ovtitia* Roapiratar *orn
1/12/37
3*.5
7.3
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1.3
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12.6
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m
26. g
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: W33 13.0 230.0 JptilV haHHnf
4/11/39 63.1
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Exhaust a^alpwat coaratlat la 1919} . ut ops ratla# at lia* of 195J ui-w*7.
jiiifiUw, tin*;floor,
13.0
39.8
63.0
3.4
Lass *eU,Ttty La 1959 than l9Jj.
U.O 243.0
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74.3
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.*.'floor
*7,7
43,
14.1 123.0
n.l 27.0
25.0
51.2
4/12/39 33.4
58.8
*Al/ 57.8
51.8
Tour grladan ipiftLLft|. Than nr* m itooai WlA( irtiMd darlac 1979 ajtpllar OTTiad, a* VU the eaaa la 195$
In 1933, too o*a oar* iaf.(*d *1 .ton. ^ dra.nUf, only 1 w durin* 1939 to.t. %'
J2.0 2.6
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4/10/35 13-4
98.7
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42.3
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38.5
4/12/39
28.9
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4/11/39
244.4 27.0
61.7 12.7
4-3
43.7
r
29.5
20.0
61.0
24.1
34.7
12.6
38.0
4.3
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142
34.3
2.7
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cojcmsiote m mzwAmiDzs In general the dust count* of th* two surveys check. Variations ere
due either to the control of dust or chans* of aetlwitiaa in th* departaanta. (tqn dressing is still dona In tfaa cork department sad, although tha
operator la provided eith an approrad type duat respirator, othar employees la da et^
Improvement has been made in tha substitution of inert materials for ,, sons toxic ones and alto in tha handling : duet-producing materials* Constant
supervision and instruction of employees sill teal to reduce tha dost generated in the handling or anteriala*
han datigslng ns* sqrrl pmefit and Installing no* pmcaaaaa, It would b* vis* to oonaldar tha poaaibla methods of dust control* Such forethought would not only eliminate a poaaibla baalth hasard, but would affaat a considerable string, aa it la always sore expensive to install dust control measures latar.
v In tha print block wash up dspartnaat a aixtura of gasoline end baasol la used to olaan the wood blocks. A large exhausted hood has been installed for the oontrol of the genereted fuses, the solvents ere kept in open tanks and the blocks are left to soak* After soaking, the blocks are sashed la gasoline and then dried by bloving with air froa a hose. Apparently tha tor only runs the exhaaet on the hood when bloving off the blocks* He blows the air in all directions and does not always place tha blocks under tha hoed* As a consequence, solvent report are dispersed throughout tha department.
/-\
Xh fallowing ooaeantratloa* ro foundi
Baosol
arta Jinn gunTM* jLixinoa
640 2800 -
>*a*-*
-y^lLsC,
hsphth*.
466
Tht-rrhiart--- tk faaod
1170 -
.v.-i c
Ll tlaaa, than
--ployi m working in thl* dapartnant.
Oa-jj.
80It*at tanka aboald b* plaaad nndar th hood not in bn<
kapt ooTwrcd itua
Tfta opwrmtor aboald t lnatroatad to blow tha block* off nadar tha hood *t all tlaaa* Zt wonld b* batter to allow tha black* to dry under tha hood
yj*r* \
&anlth Mmrfla
The toxicities of lead, manganese, bensol and naphtha war* dl*-
cnaaed la the previous report. There are fUU ha*crd from the us* of
those substance*. ^The concentrations of bonsol and naphtha are Terr Mfth.
any tine* the maximum allowable concentration*.^
SmalHlatAi nL filUai Hail
There la a besard fro* ellica dost from the operation of cton*
dressing, these stones are made of granite which has a free silica ooatant of
about 3S% the hmsard of silica dust with apeclal reference to the lung* ha*
Ion* been appreciated. It has been firmly established that th* Inhalation of
this dnat results In s fibrosis of th* Ion;*, which disease is lenovn as *111-
coaia*, and its presence, for eoa* reetoa m yet i11-4*fined, remits la extra
ordinary prw-dlspoaion to pulmonary tuberculosis. It should be bora* in nlnd
that silicosis develop* eery slowly, taking fron fire to fifteen end even
twenty to twenty-five years to become established. This rate of progree* la
Influenced mainly by the dosage of silica which th* lungs receive and this
dosage, In tore, depends upon three vcriablaa* the amount of slllea in th*
dust, the quantity and particle sis* of durt In the air, and th* extent of
exposure. Individual idiosyncrasy might be included a# a fourth variable.
However, little is known of the variation in susceptibility in those exposed
to dust.
. In an investigation of granite cutting plants,^ conducted by the
United States Public Health Service, most a! the worker* **r* found to be
exposed to an average of about 60,frttrQOO nertlcl*s_af dust of-loas than ID---(1)0.S. Public Health Service, Treus, Dept. Public Health Bull. #1S7, Health of Workers in Dusty Trades, ll. Exposure to Siliceous Dust (Gnolt* Industry^, Gov, Print. Offioe, *aah< D.C., July, 1929*
aiorona la greatest diwaeter, per cubic foot of air, The duet contained about
70 par cant silica, of which about 35Jt
in tho for* of quarts or free silica.
Under such conditions, there was an almost universal occurrence of silicosis
among tho a* exposed 20 7ear a and longer, and a large proportion of the woricera
developed pulmonary tuberculosis. It vas not found in this investigation that
it would be necessary to eliminate all of the dust to do avey with the hasard.
A nine and twenty Million particles of duat, loss than 10
icrons in longest disneter psr cubic foot of sir, could be established*