Document QJDggzz180pqY2vzv5wx7ep5E

PLAINTIFF'S EXHIBIT Industrial Hygiene Digest 3 INDUSTRIAL HEALTH NEWS # * LITERATURE ABSTRACTS m MEDICAL ENGINEERING CHEMICAL 5 :1 TCICCCLOGICAL i LEGAL - - dacttieaa ud traada "i MSLLOfr ir.TjTITUTTU3RARV------ " r E3 8 1349 ' T:_- ^TTSSL'RGH; F* ' -- * JANUARY. 1949 (VoL 13, No.-1) INDUSTRIAL HYGIENE FOUNDATION 44C3 nmi avzjtux piitsbuhgh u.pa. / 0*33 T 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 Aluainua Dust is Sill;sala. Queries end Miser :?ctes, JJI.4M.A'.",' lio, 12oo-L2o7 (Dec. 25, 1543) The question: "A nsle patient, aged 1*2, has'slcvly progressive p-1 -- ary fibres is as a result of exposure to silica dues at the ege of 15." The present syrptens are described. "^ie roentgenegraa of the chest revealed a large calcified node in the right hilar region end sn increase of narking: in the lung fields -tiich I interpreted to he pulacnery fibres ia. Eindly 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 perticles are encapsulated in nodules, and tvo years is suffi cient tine for that process. The.large calcified node is not adequate to aake 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 alurlnun treatnent is 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.eurcccnicsis Arena Miners Incased in the Talc Industry in the Pir.erolese. L. Pameggianl. ~5as3. 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 arourcs of oxide, oxide of iron and oxide of calcius. Sixty-seven per cent of the particles had disasters less than 5 nicrcns ard 35% of the vr.oie had disasters frea 1-3 aierens. _Anong 751 vor- hers-ex2=ir.ei-h7-TVrSy,~7S"cases_o?'pneunoccaiosis vere detected, 29 in ea edvaoioed-sTager eight had associated tuberculosis and 24 had tuberculosis alone. The danger licit is estirated as ea ataosphere vith less than 1000" particles under 5 nicrcns per co. Tables ere given shoving, in detail, the results of the exaninatica. Workers in the cerasic division are not subject to any dust and are free fron pneurcc cries is, but of 81 exaaired, fern* had pulncnary tuberculosis, though cnly qtv* had active disease. -- Frca Bull. Hyg. 33 Diagnostic Fluorsscccy at a Cheat Clinic. V.H. Tattersall. Lancet. 255. 574-975 tiec. 1c. )/ i The valiie of diagnostic fluoroscopy is considered, together vith its .i ri*ta end its accuracy. A achene is described in vhich 2908 people vere re, feyrad-fer exaninaticr. during the past years by the general practitioners in a tcvn of ICO,000. Pulnor.ary tuberculosis vas found in 3% of cases. v -- Author's suaaary 39 Fluorcrrsthio Survey of ?u' Metau Ir.du3~.r~' m northern 2. Zcr.ctti. Mea. d. Laver a, lesis and Silicosis :and Their Control in the v. E.c. Vigiiar.i, L . Pemeggisni end , 1-6 (Jan., 1948) (Italian) A report is giver, of lucrcgraphic ourveys nade on 25,253 vorkars eaployed in northern Italian ft-naries for the years frca 1945 to 1943. Pr.eunoccniosis vas observed in 2.21% of the cases ana divided as follcvs: retlculation and reticular fit 0313, 1.45%; nodular and aassive ailiccsio and 311ice-tuberrulesi3, 0.75% Iha highest frequency vas foed in steel verb? Igg'H affected classification-.- Tie inconsistency of opinion led to & plan for ."y *3 eaperlaeata to investigate the value of the nethod of centering irrjc:-vn filas vith accepted standard reference flira . -- Condensed fren Xuther3 1 Sumary k .*c T-art in the Pneunoconiesia of Ccal Miners. 'A.J. Th: Brit. Heart J. 10, p. 2c2 (i9-o) A ~ . Vtl 7rca a study of 9^ cases of coal niner? ' pneuncccr.iciis, it vas found that the disease renaias for a long tine in the* pulncnary phase, vtth si dyspnea, cough, fatigue, and chest pains. The cardiac phase occurs later, vith increased dyspnea, edena of the lover extrenities, and upper abdenina : * - -C disccnfort. Bight heart failure was present*in eleven cases, of vhich nine -d--V-j were fatal. -- - -- Condensed-fTcn 3rit. J. Ind. ted^Tg^? "Callctinn',Sllicosis. Charles, Cavigneaux, Fuchs and S. Tara. Arch. I-Laladies Profess, lied, travail et securite sociale 9, 551-551*(19**S) French. A case is*-described.--in vhich syeptons of-slliccsis. first.appeared.20___ norths after cessation of vork at tunneling in siliceous rock at vhich the patient had been enployed for alnost 15 sonths. No precautions vere taken to suppress dust or to avoid entering the workings imediately after blasting. The authors exsrined 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 -d nsdicai control- in this type of vork. - Condensed fron Bull. Syg. Li: os is of the Mediastinal lynch "odes aud its CoBPllcatier.s. La lore r. Arch, path, anat. physiol. 315, p. J1*! (IS-3) ---- -TU -Ivl it*. The study is based on b.,0C0 consecutive necropsies, 2,0lS of vhich vere on nen over thirty years of age. Of these, 277 (13*7% revealed sili cotic changes, including isolated lynph-node silicosis and three degrees of pu 1 nonary-s ilic os is .--Silicotic scarring of the nediastinal lynch nodes nearly always precedes the lung changes due to dust inhalation and " appears to bs t necessary factor for the occurrence of severe pulrcnary sill::sis. Further developrer.ts discussed are esophageal traction diverti cula and eccElary fistula fsmaticn. -- Condensed fren Brit. J. Ind. Med. ^$ Hov Tinker. Prevents Silicosis in Handling Silica Brick for Electric Furnaces B TaLzzrT. Steel 125, ?. 72 Uuuy 25, 19^9). '' The principal exposures to silica encountered. previously vere in un loading brick fres 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. a*. II '} " ?! .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 osthra (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 clairs . (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 !Vgg~h>,r. !*? w. '* ` *' ; , :*Jvi _I^gal^Eevelopsenta__ -..... / .'i $ " - -i " J .T "' * J *y:' 1 1 ll60 Point of Tire When Cause of Action Arises uader Occupational Dl90<n:e Statute - - Exscsure to Earnfui ?'~*3.ia elding--auff idem** of Upon '-'hlca to Base a Finding by one Commission. Frca on order of tie Industrial C galas ica granting ccnsenn'iii for disability received frca breathing harsful fuaes ia the course o f his vorlc 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 '*r,: factual questions for the ccmnissian in its discretion to deeidc. A wit . of nandamus to set aside the finding, denying the clain, vill not iooue unless gross abuse of discretion is shovn. State ex rel. Srever v Indus trial Conmissicn 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 t.V: occupa tional disease statute for silicosis. Where there is no exposure to the ;ds_ of silicosis after the effective date of the act, the ivir*l vill be denied. Evidence of'the use" of apparatusT'vhfeh reduced"th7s *cuot to allovable niTvt-.- prior to and after the effective date of the utatute, vill sustain a finding that the last injurious exposure of the ci'iir.'uit to the hazard of the disease occurred prior to the date of the statute. Aaerican Mutual Liability Insurance Concany v. Ellison. Georgi/i rourt of Appeals Ho. 3252;, Septcroer B3, 19^9 " " 1165 OYYp Date of Pi: ablerent fren Ar.thraco-Silicosis--Transfer to Lighter work* Doctor1 s ><arr. inn 0:' I nee mi:m Diaaolenent--Termination of Eneloy'er.t. C---l-a--i-n--a---n-t-,---a----n--in;;s...r....f..e...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 l>t5 to a lighter Job as "tspran" in a position vhere he continued he ex- t0 3l"ica d-:t` A ?hy:ician vnrr.ed hin in I5U6 that dlability <> <3 VB3 irsending, but he continued to ver.in . .*n...t--il >,