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PLAINTIFF'S EXHIBIT
Industrial Hygiene Digest
3
INDUSTRIAL HEALTH NEWS
# LITERATURE ABSTRACTS
4 MEDICAL
i ENGINEERING
CHEMICAL
.1 TCIECCLOGICAL
LEGAL - - dacttieaa ud traada
JANUARY. 1949 (VoL 13, No.-1)
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^TTSSL'RGH; F* ' --
INDUSTRIAL HYGIENE FOUNDATION
44C3 nmi AVZJfUX
PllTSBUHGH 13. PA.
/ 0*33
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33 Observations cm Card icvqscuiar Patients 1 StudT in a Small Industrial Plant. ?.E. (Dc., 15-iOj
:s r--?. It 3 i. Med., .
(1) The performance cn tie Job of nest patiehts with cardiovascular ii ease with tie exception of sdvsnced mitral stenosis, ie satisfactory prcvic tie patient is kept under constant medical supervision and iia piacenent ~ tie Job is re-evaluated"frdi*'f inse To* dine. (2) There is no vay cf classify ins a patient with cardiovascular disease permanently by job enaiysis cr pr piacenent examinations alcne. Sis entire physical activity during a 2s--he, period has to be evaluated, and enphasis should be placed cn frequent foil: up examinations/to detemine tie influence of all his activities upon his cardiac status"! (3) The cooperation cf fanily physician and industrial pip aicien is an inpertant factor end should be encouraged. (M Necessary re jections fren enplcynent are usually due either to temporary aggravations c the cardiac status cr to conplicating diseases such as diabetes, obesity, elccholisn, cirrhosis of the liver. (3) Vocational training has a decided advantage for placing physically handicapped patients In industry. It shot be encouraged and thoroughly planned. Detraining should be along the lines of any shill developed by previous occupation. (6) More unifamity of dec! sicn in compensation claims should be loosed for to satisfy sanageaent and decrease insurance risks. Medical experience viti cardiovascular disease 1 industry end radical statistics should be nade tie basis of ccspensation legislation. (7) Workers using high vibrating tools should have a physical as well as psychiatric aptitude test before being placed on the Job.
-- Author's conclusions
3^ Tissue Reszcnses to Phvci:al Forces. I. The Pathogenesis of Silicosis. A ?rslininarv Rarer:. S.M. Evans. J. Ind. Eyg. and Tex., 30, 353-357 (Nov., 19^3)
(1) The ability cf exogenous dusts to produce fibroblastic responses :
correlated directly vizh nclecular esy=etry end piezoelectric activity.
(2) Vulfenite (lead molybdate), selected cn a purely theoretical basis, pr:
duces tissue reactions comparable with quartz. (3) Wulfenite reacts In an
accelerated manner vten zest animals ere exposed In & highly concentrated
electromagnetic field designed to intensify the piezoelectric effect, (b)
The hypothetical biologic implications of "spheres of energetic influence"
mediated through asymmetrical solid states of metabolites, foreign`material
sad electromagnetic force fields are discussed.
-- Author's summary
25 h*t is Silicosis? P. Eeffeman. Tubercle, 29, 169-173 (19^8)
_
<^Y3j
Heffeman considers the statement in Starling's text (19^0, "No sub stance introduced into the protoplasm has any chemical influence unlese it
be soluble," os misleading. He concludes that the essential agent in the
causation cf true or "classical" silicosis, as distinguished from non-spe
cific pneumoconiosis, is the freshly-cloven silica particle. Tie patiolcg
cal process basically consists in the nydraticn cf the silica particle at
the expense of the cell protcnlasn. Because of its atonic lattice--struct'
quartzite, `.her. zeudered, yields a more virulent dust than other silica fc:
nations. Fully hyzrated silica, silica hydroscl, sometimes mistakenly cal
"silicic acid," is nor.-tc:cic and enters freely into the metabolism of plan
and eninnus. Partly hydrated suspensions of silica In vater, "colloidal
silica," retain some cf ths chonical activity of the dr7 Fovder but in a m
less degree.
-- Chen. Absts
4
^6 Aluairur Dust is Sill;sala. Queries end Miser :?ctes, JJlwMJ".",' lia, 12QQ-L207 (Dec. 25, 1543)
The question: "A nsle patient, aged 1*2, has'slcvly progressive 7"1 -- ary fibres is as a result of exposure to silica duet at the ege of 15." The present syrptcas are described. "^ie roentgenegrea of the chest revealed a large calcified node in the right hilar region end sn increase of narhieg: in the lung fields -tiich I interpreted to he pulnsnar7 fibres is. Eirdly cdvise treatnent, especially vith reference to aluninus. Is there any 3irpli fted office procedure for this nethod...." The reply first states that in the absence of subsequent exposure/ silicosis is not progressive after so long a period. Authorities agree that silicosis is.stationary after the ab sorbed silica perticies are encapsulated in nodules, and tvo years is suffi cient tine for that process. The.large calcified node is not adequate to rake a diagnosis of silicosis, nor are the other narkings; all nay easily have other causes. Finally, there 1s no accepted treatnent fer veil estab lished silicosis. Tze possible value of the alunlnua treatnent 1s in preve: ticn and arresting of silicosis in the early stages, but it is far fron be in -il established in the present stage of research.
37 Pr.eurcccricsis Arena Miners Incased in the Talc Industry in the Pir.erolese. L. Pameggianl. 'Pas3. Med. Indust., 17, 16-47 (Jen.-Mar., 15^*0) (Italian7
The talc in the factories investigated had 61-77% silica, 31-29% aag-
nesiun oxide tjrf snail arouncs of
oxide, oxide of iron and oxide of
calcius. Sixty-seven per cent of the particles had dianeters less than 5
nicrcns and 35% of the vr.oie had dianeters frea 1-3 aierens. _Anong 751 vorkers-ex2=ir.ei-b7-TVrSy,~7S"canes_o?'pneunoccaiosis vere "detected, 29 In en '
edvanoed-sTager eight had associated tuberculosis and 24 had tuberculosis
alone. The danger liait is estlasted as ea ataosphere vith less than 1CC0`
particles under 5 nicrcns per co. Tables ere given shoving, in detail, the
results of the exeaiasticn. Workers in the ceraaic division are not subject
to any dust and are free frea pneunoccnicsis, but of 81 exanined, fan* had
pulncnary tuberculosis, though caly qtv had active disease.
-- Frea Bull. Hyg.
33 Diagnostic Fiuorsscccy at a Cheat Clir.ic. W.H. Tattersall. Lancet. 255. 574-975 tiec. 1c. 15^0) /
.
4 The velue of diagnostic fluoroscopy is considered, together vith its 4 ri*ta end its accuracy. A achene is described in vhich 2908 people vere re
a ferred for exaainaticr. during the past years by the general practitioners in a tcvn of ICO,000. Fulnor.ary tuberculosis vas fsund In 3% of cases.
i -- Author's su=ary
*1
39 Fluorerrcthic Survey of Tu1 Metau Ir.du3~.r~' m rrerthem 2. Zcr.ctti. Mea. d. Laver a,
lesis end Sllicosia :and Their Control ir. the v. E.c. Vigiiar.i, L . Pemeggiani end , 1-6 (Jan., 1948) (Italian)
A report is giver, of lucrcgraphic surveys nade on 25,253 vorksrs eaployed in northern -taller ft-reries for the years frea 1945 to 1943. Pr.eunoccniosis vas observed ir 2.21% of the cases am divided as follcvs: retleulatien ard reticuler fib 031s, 1.15%; nodular ard aassive silicosis ard 3ilico-tuberrules is, 0.75% The highest frequency vas foed in steel verb?
' Igg'n affected classification-.- Tie ir.ccns latency of opin' or. led to & plan for ."y *3
eaperlaBats to investigate the value of the nethod of centering in*jc:-vn filM vith accepted standard reference filns .
-- Condensed fren Xuther3 1 Sumary
k .*c Heart in the Pneunoccr.icsis of Ccal Miners. 'A.J. Th: Brit. Heart J. 10, p. 2c2
~ . Vtl
7rca a study of 9^ cases of coal niner? ' pneuncccniciis, it vas found
that the disease renaias fer a long tine in the* pulncnary phase, vith
^1
dyspnea, cough, fatigue, and chest pains. The cardiac phase occurs later,
: *
vith increased dyspnea, edena of the lover extrenities, and upper abdeniua r.=_-r-~."-eC
disccnfort. Bight heart failure was present*in eleven cases, of vhich nine -d--V-j
were fatal. - * -
...
- -- Condensed-fren Brit. J. Ind. JtedjrjKf
"Callccim',Sllitosis. Charles, Cavigneaux, Fuchs and S. Tara. Arch. I-'jladies Profess, lied, travail et securite sociale 9, 551-551*(19**S) French.
.
A case is*descriced^ia vhich synptons of-silicosis, first.appeared.20___
ncr.ths after cessation of vork at tunneling in siliceous rock at vhich
the patient had been enployed for alncst 15 sonths. No precautions vere
taken to suppress dust or to avoid entering the workings irnediately after
blasting. The authors exsnined the patient about tvo years after cessation
of the tunneling
found that the radiograph shoved advenced silicosis.
They cogent cn. the lack of financial provisions for this patient and urge
the need for. preventive nsasures
nsdicai control- in this type of vork.
.. Condensed fron Bull. Syg.
Liccsis of the Mediastinal lynch "odes aud its Cogpllcaticr.s.
---- -TU
leloner. Arch, path, anat. physiol. 315, p. J1*! (19-3)
-;.vd ?t*.
The study Is based on l*.,0C0 consecutive necropsies, 2,0lS of vhich vere on nen over thirty years of age. Of these, 277 (13*7% revealed sill-
r..TA'ivS
cotic changes, including isolated lynph-node silicosis and three degrees
of pu 1 nonary-s 111cosis .--Silicotic scarring of the nediastinal lynch
..
nodes nearly always precedes the lung changes due to dust inhalation and "
appears to bo a necessary factor for the occurrence of severe pulncnary
'
s----osis. Further developrer.ts discussed are esophageal traction diverti
cula and ooccnlary fistula fcmaticr.. -- Condensed fren Brit. J. Ind. Med.
^$
.Hov Tinker. Prevents Silicosis ir. =ar.dlir.c Silica Brick for Flectrlc Furnaces
B Feinsn! Steel 125, ?. 72 Uuuy 25, 19^9).
''
a*.
The principal exposures to silica encountered. previously vere in un loading brick fren the car and in scutching in the construction of tops. '.lev all brick used are sprayed vith oil before handling, and scutching is avoided by using prefabricated brick. Veen an electric saw is used, a Miehaus duct separator is attached. This thoroughly nixes the dust vith
vatcr and collects it in a portable tame.
II '} "
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.Cl! *. I'ct.r.itll. Vice Frcnflcii I`. "cl'.tia urui '.'one, rcportirr results of
. cjr.: i.:: cry
i:: '.met*.
tudy on
OY38
Occupational Disease Statistics
_59 Occupational Disease Statistics.
Ccnn.a Oct. Nov. 19 ^9
' Ind.**
Oct.
Nov. 19t9
Mich.2 Oct. Nov.
19ko
Ohio
May 19^9
iS.* Sept. Oct. 191*9 Totals
Asphyxiation
Bronchial osthna (dust)
Brucellosis
Bums
Carbon scnoxide poisoning
Cheaieal bums
.
Chesical poisoning (NCC)
Conjunctivitis
'
Cyanide poisoning
Demat it is
Eye infections ?-.< ................... .........................
Hernia
'
Infection (NCC)
Inflamatcry conditions
Lead absorption
Lead poisoning
Lung diseases (HOC)
Miscellaneous
Nasal irritation (Ulcer)
Pneunoeeaios is
Silicosis
Skin diseases (ITOC)
Tuberculosis (due to contact)
Undulant fever
2
k
21 21** 231
. -
12 2
1
8 2 3*
1;
2 12 87
1*2 15
5
33 11
2 11 22
33 1*
kk
11 88 391
33 1* u
12 88
2
1 13
12
87 11
8
1 79 15
5 1* 5
Totals
30 27
77 398 125 657
(1) Occupational Disease Cases reported to the Industrial remission. There were 102,531 days lost, including one death froa Lung diseases (NCC); eleven deaths fren silicosis, and two deaths froa all other occupational disease clains.
(2) Occupational Disease Casco reported to the Health Departnect.
* Infections caused one eaeh; Oils, rats & Waxes caused 13; Paints &
Lacquers caused one; solvents (NOC) caused three, and 12 vsre caused
by undeternined hazards.
3^
** Seven cases of dematitis caused by petroleua products.
i. : * ; '-.li 1 '
Industrial Hygiene Digest - 5
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ll60 Point of Tire When Cause of Action Arises uader Occusatlcnal Uisoni.'.; Statute - - Exscsure to Earufui ?'~*3.ia eldizg--auff idem** of i-' tetri Upon Whlca to Base a Finding by tne Commission.
Frca on order of tie Industrial C galas ica granting ccnsenn'iti for disability received frca breathing harsful fuaes ia the course o f his work as a welder asd holding thatTTis cause of~aHioa"arbse~15Sc'b''bin dcctcr
first determined that he vas suffering a eospenaable disability, the State Insurance Fund appealed, contending that the applicant's cause of ac ticn arose vhen he beeare totally disabled regardless of vhether he knew that his disability vas total, occupationally caused and coapensable. It vas
determined that the facts before the cc=icsicn vere insufficient to
support the finding as to vhen the cause of action arose and the o>t;> vas
rennnded for further action. State Insurance Fund v. Industrial '*rj7--issicn.
Utah Suprene Court. No. "27-. Septeaber 1, 19^9*
--CCS
11-1 Siliccsis--?roof of Exposure and Total Disabllity--Macda~uo--Abu.-i^ '>* C Is ^ *cr *
Whether or not the clainant grinder suffered three years or exposure " - to silica dust in his enployment ia Ohio npd vas totally disabled are
factual questions for the ccmnissian in its discreticn to deeidc. A wit . of mandamus to set aside the finding, denying the clain, vill not iooue unless gross abuse of discreticn is shovn. State ex rel. Srever v Indus trial Commission of Ohio. Ohio Court of Appeals, Franitiia Comity. Ho. 4*210. Septeaber 2o, 19^9
11-2 Silico3is--Stcne Cutter--Ho Exposure after Effective Date of Statute.
- A stone cutter of long experience sought benefits under the occupa
tional disease statute for silicosis. Where there is no exposure to the
;ds_ of silicosis after the effective date of the act, the avard vill
be denied. Evidence of "the use" of apparatusT "vhfch reduced"th7s *cuot to
allovable niTvt-.- prior to and after the effective date of the .statute,
vill sustain a finding that the last injurious exposure of the ciai.'f.nt
to the hazard of the disease occurred prior to the date of the statute.
Aaerican Mutual Liability Insurance Conoany v. Ellison. Georgia rourt
of Appeals Ho. 3252;, Septcroer B3, 19^9* "
"
1165
OYYp
Date of Pi: ablerent from Ar.t hrnco-Silicosis--Transfer to Lighter work* Ucctor1 s ><arr. im 0:' I nee mi:m Disaolement--Termination of Znsiwv--rt
C---l-a--i-n--a---n-t-,---a----n--in;;e...r....f..o...r....n..e...s..t...o...f....h..i.s......l.i..f..e.. .,...v..a...s.....t.r..a..n...s...f.e...r.r..e..d
19^5
to a lighter Job as "tspnan" in a position vhere he continued
he ex-
t0 3l"ica d-:t` A physician warned hin in I5U6 that disability
<> <3 VB3 irsending, but he continued to ver.b . . ...-- >,