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FILE NAME Talc TALC DATE 1952 Apr DOC TALC305 DOCUMENT DESCRIPTION IH Digest of April 1952 with Abstract 437 German report of possible Asbestosis in workers Barry Castleman Comments - Industrial Hygiene Digest of April 1952 with Abstract # 437 summarizing a German report that Pneumoconiosis in workers at a cosmetic and medical talc plant looked like Asbestosis 014 1992 1992 19 21992 1992 19921992 NovemberNovembr November November November November November November November November ABRAMS ABRAMS ABRAMS ABRAMS Industrial Hygiene Digest INDUSTRIAL HEALTH NEWS LITERATURE ABSTRACTS MEDICAL ENGINEERING CHEMICAL TOXICOLOGICAL LEGAL ... decisions and trends ABRAMS ABRAMS : RE RE IN IN APRIL 1952 Vol 16 No. 4 INDUSTRIAL HYGIENE FOUNDATION MELLON INSTITUTE 4400 FIFTH AVENUE : PITTSBURGH 13 PA PLAINTIFF'S exhibtsicker.com exhibitsticker.com exhibitsticker.com EXHIBIT exhibitsticker.com exhibitsticker.com exhibitsticker.com exhibitsticker.com exhibitsticker.com exhibitsticker.com exhibitsticker.com 04285exhibitsticker.com exhibitsticker.com 03119268 PLAINTIFF'S PLAINTIF 'S EXHIBIT IHF - 172 / ay 97 Mal et er S\ ? pn! r : 3 ~-- ae, INDUSTRIAL HYGIENE at FOUNDATION eeeoo- to industrial concerns holding membership in Industrial Hygiene Foundation The Foundation is a nonprofit association of industries for the advancement of healthful working conditions OCI Volume 14 OCI OCI April 1952 NEW ADDITIONS TO FOUNDATION MEMBERSHIP No. 4 0145 I The following companies have I Copperweld Steel Co. Chromium Mining & Smelting Corp. Ltd. Diamond Alkali Co. recently affiliated with the Foundation Fostoria Glass Company Mathieson Chemical Corp. Pabst Brewing Company TALKS BY STAFF MEMBERS Dr. C. Richard Walmer Managing Director will discuss the administration of medical health programs at a training course in industrial relations ponsored the San by Industrial Relations Counselors Inc of New Marcos Hotel Chandler Arizona April 7 to 17. York which is being held He will also serve as discussion leader for two seminar groups Mr. W.C.L. Hemeon Engineering Director presented a paper entitled Design and Use of Equipment in Pollution Measurements at a meeting ofthe Pittsburgh Section of the Instrument Society of America held on April 4 FOUNDATION ACQUIRES ADDITIONAL SPACE AM Mellon Institute has made available to the Foundation additional space consisting of two offices a conference and library room and a small laboratory The Foundation is grateful to the Institute for these supplemental facilities which are needed to provide for the expanding program of work and increased personnel ! A A INDUSTRIAL HEALTH CONFERENCE Y f \ The Industrial Hygiene Foundation will be well represented at FF995522F952 Industrial Health Conference which will be held in Cincinnati Ohio 19-26 The entire senior staff will attend the meetings and participate April numerous conferences and committee sessions the in IN IN IN REPRINTS AVAILABLE Reprints are available request of the paper entitled Experi- mental Endogenous Lipoid Pneumonia by Dr. Paul Gross the Foundation's Research Pathologist published in the American Journal of Pathology 28 211 -1952 H INDUSTRIAL HYGIENE FOUNDATION 4400 FIFTH AVENUE PITTSBURGH 13 PA 03119270 Industrial Hygiene Digest 1992 1992 1992 1992 1992 19921992 1992 NovemberNovember November November November November November November ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMSABRAMS RRE E RE TABLE OF CONTENTS News Items . 2 Occupational Disease Statistics . Legal Developments Industrial Medical Practice .. Sr eS SY Skin Diseases and Burns ey Chemical Hazards . Industrial Dusts 20 Physical Aspects of the Environment 24 Radioactivity and Radiation 28 Environmental Measurements 30 Preventive Engineering .. 32 Community Air Hygiene . wee 33 Management Aspects Accidents and Prevention 35 36 eee vr ewe . 37 April 1952 0146 IN 03119271 April 1952 Volume XVI No. 4 1999 1999 Industrial Hygiene Foundation 4400 Fifth Avenue Pittsburgh 13 Pennsylvania 0814 7 INDUSTRIAL HYGIENE DIGEST Literature and News November NEWS ITEMS November Industrial Toxicology Laboratory November November DuPont plans to construct a $ million Haskell Laboratory of Industrial Toxicology near Newark Delaware This will provide enlarged facilities for the company's industrial toxicological laboratory which has been located at the DuPont Experimental Station since 1935. The building is scheduled to be completed in about a year -- Chem & Eng News March 17 1952 366 National Air Pollution Symposium ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS 367 367 ABRAMS ABRAMS : RE RE RE RE IN IN IN IN The second National Air Pollution Symposium sponsored by Stanford Research Institute with the cooperation of the three leading California universities will be held Monday and Tuesday May 5 and 6 at the Huntington Hotel Pasadena California The four sessions will deal with a status report on knowledge of atmospheric pollutants fundamental chemistry and physics of the atmosphere combustion as a contributor to air pollution and biological aspects of air pollution State Industrial Safety Conference ; The Pennsylvania Conference on Industrial Safety will be held in Harrisburg Pa on Monday and Tuesday May 19 and 20 1952. The Conference will bring together leaders in industry labor and management for a day discussion of essential problems in industrial safety in all its phases Information can be obtained from Hon David M. Walker Secretary Department of Labor and Industry 305 South Office Building Harrisburg Pennsylvania Conference on Public Health Statistics 03119272 The University of Michigan School of Public Health offers the . Second Conference on Public Health Statistics for health directors program directors and public health statisticians June 16 to 20 1952 > Industrial Hygiene Digest - 3 April 1952 CBBI CBBIBI JOQUIOAON JOQUIOAONJOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAONJOQUIOAON 0 14 9 * Abnormalities of humidity Cyanides Foodstuffs Formaldehyde Oil and solvent combination exposure and Zinc and compounds caused one each Acids Plating solutions N.O.C. Soap solutions glues etc. Sulphur compounds N.O.C. and Synthetic resins and chemicals caused two each Phenol and phenolic compounds caused four Alkalies and Solvents N.O.C. caused five each and nineteen were caused by Oils fats and waxes ** Brine Chromic acid Metal dust and Penicillin caused one each Rubber caused two Synthetic resins caused three Unstated caused four and Cutting oils caused six LEGAL DEVELOPMENTS 370 JOQUIOAON ABRAMS ABRAMS ABRAMS Dermatitis Laborer Condition and Procedure Claimant a laborer had a skin ailment extending over a year period The issue of fact was whether or not his present condition grew out of his last employment or from previous employment with another employer The court held that the board's fact findings in this regard would not be disturbed unless manifestly against the weight of the evidence and sustained the award Matter of Bernhardt v Wright Corp. N. Supreme Court Appellate Div Third Dept. January 9 CCH 371 Longshoremen's and Harbor Workers Compensation Dermatitis-Recurrence of Previously Compensated Injury Defined ABRAMSABRAMS ABRAMSABRAMS RE RE RE Any attack of an occupational disease whether an initial one or a recurrence following a symptom period is an injury if it arises naturally out of the employment The claimant suffered her second attack of dermatitis in December of 1946 became wholly disabled in January of 1947 and filed her claim in November of 1947. Since the claim was timely because it was filed within one year after the disease recurred and since the term injury includes recurrence an award of compensation benefits was proper and judgment denying them was reversed Cadwallader v Sholl United States Court of Appeals District of Columbia Circuit No. 10,748 January 31 1952. On rehearing CCH -- . 03119274 Industrial Hygiene Digest - 4 April 1952 01420 372 Employee v Independent Contractor of Work C66I C66I The claimant was an underground miner for 25 years prior to his disablement from silicosis in 1950. In 1946 while working for another C66I mine he signed a contract with the defendant company to inspect its mine C66I C66I C66I and in this job he was clearly an independent contractor In 1947 he signed another contract with the defendant company agreeing to retimber the shaft of the company with 15 sets more or less furnish the labor look after IOQUOAON the paying of all bills in connection with the labor and obtain waivers of IOQUOAON IOQUOAON IOQUOAON IOQUOAON IOQUOAON IOQUOAON liens Unlike the previous contract however there was no express language indicating the claimant was an independent contractor After the 15 sets were installed the claimant and other miners completed another 60 sets and although the contract only called for timbering the shaft the record indicates that early in 1949 after the shaft was timbered the claimant and others worked raise which was IOQUOAON IOQUOAON IOQUOAON separate and apart from the shaft laid rails in a tunnel did mucking work and helped to install a compressor all under the direction and supervision of the company's superintendent IOQUOAON IOQUOAON The claimant also worked for about two months on a drift in the state of Colorado where he had no control of the kind of work or the IOQUOAON manner of performing it On one occasion the claimant significantly turned in an overtime slip when he worked a double shift Under these circumstances the Commission was not being arbitrary and capricious in concluding that the contract had been completed and that work elsewhere in the mine and in Colorado was contemplated and initiated under an ABRAMS ABRAMS ABRAMS ABRAMS employer relationship Award affirmed Commission of Finance of Utah v Industrial Commission of Utah Utah Supreme Court No. 7726 January 4 1952 -- CCH ABRAMS ABRAMS Silicosis Cutter Three Limitation to Contraction of Disease Construed as ABRAMS ABRAMS ABRAMSABRAMS : INRE INRE Silicosis as an occupational disease under the Act is contracted at the time when it manifests itself so as to interefere with bodily functions and a granite cutter who was totally and permanently disabled by the disease at the beginning of 1949 was not barred by the three limitation when there was evidence to show that he had had the disease as early as 1944 but had not been affected by it Yeager v Delano Granite Works Minnesota Supreme Court No. 20 February 29 1952 -- CCH INRE INRE INRE INRE INRIE NRE Silicosis Cutter Exposed to Dust for Less Than Two Years During Year Period Prior to Last Exposure to Rehabilitation Benefits Unless an employee not actually disabled but found to be affected by silicosis has been exposed to the inhalation of silica dust in North Carolina for at least 2 years within the year period prior to his last exposure he not eligible for rehabilitation benefits Midkiff v North Carolina Granite Corp. North Carolina Supreme Court Feb. 27 1952 CCH : 03119275 Industrial Hygiene Digest - 5 April 1952 0142 1993 INDUSTRIAL MEDICAL PRACTICE 1993 1993 19931993 375 1993 November Novembr NovemberNovember November November NovemberNovember 376 Graduate Education for Physicians in Industrial Health and Occupational Medicine A Report of Current Graduate Education in Nine Universities O. Mallery Jr. Ind Med & Surg.21 101-105 March 1952 | Despite the several available curriculums which allow the earning of a degree time study of selected subjects short courses or fellowships in the field only a limited number of physicians are presently engaged in graduate study In the various universities offering a degree the didactic studies are basically similar and plant training is required as part of graduate study In most cases the graduate training now available is of recent origin and is still undergoing revision New methods and plans for graduate education are being actively sought -- Cond from Author's Summary Orientation of the New Employee by the Health Division of an Atomic Energy Research Laboratory Four Review J. Felton Ind Med & Surg 21 107-110 March 1952 The components of an orientation program for new employees at an atomic energy research laboratory are reviewed and the presentation of the Health Division is discussed in detail In four years since the inception of the program 129 separate presentations have been given to a total of 1535 individuals reporting to the Laboratory for employment The course of the total health effort has been plotted more and more on a mental health approach which has its goal the realization of work as a satisfying experience for all Other changes in program format including colored visual aids and the distribution of a pamphlet on mental health are described Advantages accruing to the new employee are discussed -- Cond from Author's Summary 377 IN IN Economics of Industrial Ophthalmology I.H. Ohio State Med J. 47 654 July 1951 Stolzar In Ohio in 1949 19 of the total of 270,000 compensation claims filed were for eye injuries including 170 claims for total loss of vision The author outlines a program for industrial visual hygiene Workers should be subjected to a complete ophthalmologic examination which should include testosf muscle balance and visual field Many active and incipient eye diseases can be detected in an examination The program should be continuous preemployment and annual examinations are a vice ue te eet 03119276 Industrial Hygiene Digest - 6 April 1952 necessity Visual standards should be set for the various tasks and 1993 11999393 0142 1993 employees should be assigned only to tasks consistent with their visual abilities All employees subject to eye hazards should be required to wear safety goggles but uncomfortable glasses will not be worn Lecture sessions and posters will aid greatly in employee education The expense 1993 of such a program will be justified by general improvement in employee 1993 performance -~ Cond from Arch Ind Hyg & Occ Med 378 Novembe Novembe Novembe Novembe Novembe Novembe Novembe Novembe Vision Tests for E.L. Steinberg Your Small Plant Why Not Factory Mgmt Maint 110 110-112 Part I Feb. 1952 Even in small plants benefits from increased production and less waste have followed the adoption of vision tests and measures to improve vision Only five basic visual skills usually need to be measured muscular balance visual acuity depth perception field of vision and color vision Three types of instruments for vision tests are available the ortho rater and the sight screener can only be rented and the industrial telebinocular can be purchased Novembe 379 Examination of Workers and Working Conditions in Glass Fiber Factory J. Jindrichiva V. Jensi M. Sabatova and M. Pantucek Pracovni Lekarstvi 3 135 June 1951 Czechoslovakian ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS The authors examined the workers and the working conditions of a glass factory The work is light should be done mostly by women There is no danger of pneumoconiosis and when the protective measures and personal hygiene are maintained the work hazards with methyl alcohol trichloroethylene and formaldehyde are limited to a minimum It is necessary to keep the employees under continuous observation A medical follow is however not sufficient it is necessary to cooperate with the management the workers committee and mainly with as many workers from the workshops as possible -- Arch Ind Hyg & Occ Med : RE Skin Cancer of the Hand and Forearm A. Gourevitch Brit J. Ind Med 9 C.N. Cruickshank and 74-79 January 1952 RE RE IN IN IN IN IN ININ An investigation of the patients treated for epithelioma of the hand and forearm at the United Birmingham Hospitals during the period 19411950 is reported The results agree with those previously obtained in indicating a high incidence of this type of cancer among workers exposed to oils A significantly large proportion occurs among metal workers who exposed to oil The findings are compared with those of a pre- vious similar investigation of scrotal cancer It is the responsibility of industrial medical officers to ensure minimal exposure to carcinogenic ^/gents 03119277 Industrial Hygiene Digest - 7 April 1952 1199393 01423 381 Tomography in Anthracosilicosis D. Belayew Arch Belges Med Sociale et Hyg 9 197-199 June 1951 In French The value of tomography was tested with 200 Belgian coal miners 1993 It has several advantages over ordinary ray procedure The shadows 1993 are more opaque the distribution of the nodules in pneumoconiosis is more 1993 extensive the existence of voluminous nodules and coalescing areas is frequently brought to light a diagnosis of pronounced emphysema was November November frequently brought to light Tomography opens up an unexplored field regarding the bronchial tree revealing thickness in the walls of the November branches or narrowing or enlargement unobserved which would otherwise pass -- Cond from Bull Hyg November November 382 The Association of Varicose Veins with Industry H.O. McPheeters Wisc Med J. 50 997 October 1951 November ABRAMS Complications that may develop from or that are associated with varicose veins may cause them to be a hazard in industry Many examiners for large industrial plants will not accept for employment a person who has varicose veins while others will take a chance that the veins are just large normal veins Directions are given for adequate examination With regard to compensation aspects an injury that would be of little consequence normally may aggravate preexisting conditions and thus become serious and compensable -- Cond from Arch Ind Hyg & Occ Med ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMSABRAMS 383 SKIN DISEASES AND BURNS Industrial Dermatoses and the E.F. Traub and D. Schultheis September 1 1951 Law Suggestions Jr. New York J. for Improvement Med 51 2005 RERE RE RE RERE The authors feel that better cooperation between employers insurance carriers and physicians treating patients with industrial skin lesions would eliminate many of the present shortcomings They stress the following points 1 careful histories thorough examinations and accurate reports 2 learning how to testify properly 3 avoidance of solicitation accurate appraisal of disability and treatment only by specialists 4 properly adjusted fees 5 trained personnel in responsible positions 6 first examinations by physicians paid by the carriers to determine whether the case is compensable and 7 formation of a board of three unbiased dermatologists whose suggestions and opinions on medical testimony should be binding on the referee -- Cond from Arch Ind Hyg & Occ Med 03119278 Industrial Hygiene Digest - 8 April 1952 1992 0142 384384384 1992 1992 The Problem of Consecutive Complicating Eruptions in Industrial Medicine G.F. Emerson New York J. Med 51 2015 September 1 1951 The first of the two cases presented here is that of a woman who 1992 in 1944 was exposed to chemicals used in electroplating Apparently the solutions contained in the vats frequently wet her hands and forearms After one month at this work a dermatitis appeared on the exposed parts and later the face and neck became involved also She stopped work two months after the dermatitis first appeared Since that time she has been under the care of dermatologists and general practitioners for varying NovemberNovember November intervals Treatment has included roentgen therapy The dermatosis has persisted to date continuously and is worse during the summer heat This patient and the other one who suffered a welding burn in 1949 and was treated with a sulfonamide compound and later with penicillin raise a number of questions concerned with workmen's compensation Are such patients entitled to free treatment of skin lesions for the rest of their lives Will the employer in whose plant the original skin lesion was acquired be liable for later doctor hospital and medicine bills ? -- Arch Ind Hyg & Occ Med November November November 385 385 Printing Materials and Contact Dermatitis Queries and Minor Notes J. Am Med Assn 148 782 March 1 1952 ABRAMS ABRAMSABRAMS The question A patient has contact dermatitis on the volar surface of the forearms He handles hot lead in printing shop He is slightly sensitive to several foods these have been eliminated Are patch tests with lead advisable Type metal may cause dermatitis in susceptible persons However dermatitis in printers is more likely to be due to inks or to the various alkalies and solvents used to clean the type and presses Patch tests may be performed with the metallic sub- stances or with the inks but not with the solvents ABRAMSABRAMS ABRAMS ABRAMS ABRAMS Chromium Dermatitis Queries and Minor Notes J. Am Med Assn 148 877 March 8 1952 : RE RE RE ININ The question is whether there is any protective measure against the irritant effect on the hands caused by the chromic acid preparation used in the engraving industry Greasy barrier creams transfer fingerprints to the product The best approach is through frequent lavings in weak reducing agents such as % sodium hyposulfite weak ascorbic acid citrate or tartrate solutions No worker with open lesions should be permitted to be exposed Individual susceptibility and sensitization are important Planned desensitization is rarely practical but spontaneous , desensitization occurs commonly 03119279 Industrial Hygiene Digest - 9 April 1952 387 Condensation Plastics Their Dermatological and Chemical Aspects G.E. Morris Arch Ind Hyg & Occ Med 5 37-43 Jan. 1952 C66I 0 14 25 Dermatitis caused in the manufacture of plastics comprises about C6 IC6 I % of the practice of the industrial dermatologist The completely C66I C66I C66I polymerized finished plastics are dermatologically inert The physician C66I should be acquainted with the chemicals that the worker handles The chemistry of the condensation plastics is presented --Author's Summary JOQUIOAON JOQUIOAON JOQUIOAON 388 JOQUIOA NJOQUIOAON JOQUIOAONJOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON Occupational Leukodermia from Rubber Dust and Debris J. Zakon and A. Goldberg Arch Dermatol Syphilol 64 441-443 July 1951 Oliver Schwartz and Warren IHF Abst 851 1939 observed a number of patients colored with leukoderma due to contact with rubber The causative factor in the rubber was traced to agarite which is said to be monobenzyl ether of hydroquinone and antioxidant used in the manufacture of rubber The author observed nine cases of leukoderma in white patients who worked on asbestos pads and whose nails face and feet were covered with dust and debris containing agarite rubber particles Apparently a number of factors are needed to produce occupational leukoderma These are agarite and alkaline skin reaction and perhaps an alcohol type of sweat -- Biol Absts ABRAMS ABRAMS ABRAMS CHEMICAL HAZARDS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS 389 RERE RE Occupational Effects of Selenium E. Holstein Zentr Arbeitsmed & Arbeitsschutz 1 102 September 1951 In German Holstein discusses in general the chemical properties of selenium and of its compounds the extent to which they may be adsorbed in the forms of dust and vapors by the human body and selenium poisoning of workers employed in the glass ceramic and rubber industries and in the manufacture of photoelectric apparatus condensators and rectifiers Symptoms and signs of selenium poisoning are described -- Arch Ind Hyg & Occ Med The measure of a man's real character is what he would do if he knew he would never be found out -- Thomas B. Macaulay 03119280 Industrial Hygiene Digest - 10 April 1952 390 Sulfur Dioxide Hazards R. Freitag 801426 6661 6661 6661 Erdol u Kohle 4 569 579 1951 German Tolerance to sulfur dioxide is high 0.1 to 0.12 mg per sons that are hypersensitive should not be permitted to work in its Per- presence Animal experiments gave the following results quickly pro- ducing death 3-5 mg per .; later death 1.4-1.7 mg per 1. for 1/2 to one hour 0.4-0.5 mg per 1. probably fatal 0.17-0.64 mg per 1 JOQUIOJAOONQUIOAON JOQUIOAON tolerated An accident in a sulfite cellulose factory is mentioned -- Chem Absts JOQUIOAON JOQUIOAON Treatment of Nerve Casualties J.R. Wood P.F. Dickens J. Rizzolo and M. November 1951 Bayliss U.S. Armed Forces Med J. 2 1609-1617 JOQUIOAON ABRAMSABRAMS The nerve gases are a group of highly toxic chemical agents having a physiologic action like but much more prolonged than physostigmine They are readily absorbed through the respiratory tract the skin the eyes and the gastrointestinal tract Symptoms induced by incapacitating or lethal doses begin immediately and progress at a rapid rate This paper considers the toxicity and pharmacology of the gases the symptoms and diagnosis of poisoning first aid measures and treatment Casualties contaminated with liquid nerve gases endanger unprotected personnel and handlers of such patients should wear protective rubber aprons and gloves so long as there is any skin or clothing contact with the liquid agent A gas mask is essential A number of other precautions are discussed ABRAMS ABRAMS A Case of Optic Atrophy due to Delayed Lead Poisoning C. Soprana Med Lavoro 42 187-191 May 1951 In Italian ABRAMS ABRAMS ABRAMS ABRAMS RERE A workman subjected to lead exposure for five periods of about six months each noticed some weakness of eyesight which became serious four years later Optic nerve atrophy was found in both eyes with no apparent cause On injection of magnesium sulfate to mobilize lead porphyrinuria set in within 24 hours This result strongly supported the view that the optic atrophy was a late effect of past lead poisoning -- Cond from Bull Hyg Determination of O. Frank and V. In German Porphyrins in Urine of Workers in Industries Using Lead Lachnit Wien Z. inn Med 32 413 Sept., 1951 The authors tested the use of deLangen and tenBerg's method for determining an increase of urinary coproporphyrins in 715 workers in lead industries including plumbers lead founders painters color grinders enamel burners and compositors A slightly increased porphyrin excretion was observed in 17 workers and a more pronounced increase in 12. Limit 03119281 Industrial Hygiene Digest - 11 April 1952 1993 1993 19199933 1993 1993 19 1993 1993 3 values and positive results were checked by quantitative determinations 0 14 27 The maximum value found was 1.5 mg Of the workers with slightly increased porphyrin no one presented signs of lead poisoning two of those with pronouncedly increased porphyrinuria exhibited symptoms Sporadic basophilically stippled erythrocytes were demonstrated in blood streak preparations of three workers No subjective or clinical evidence of increased lead was found in the other workers With the reservation that other diseases may be responsible for increased porphyrin excretion November November November November 394 the described rapid method is particularly suitable for serial examinations of lead workers -- Cond from Arch Ind Hyg & Occ Med Effect of Sodium and Zirconium Citrates on Distribution and Excretion of November Injected Radiolead J. Schubert and Marcia R. Med 39 260-266 February 1952 White J. Lab Clin November The results described in this paper indicate that the citrate ion has little or no effect on the immediate blood disappearance organ However refs distribution or excretion of lead in rats with carrier amounts of lead labeled with radio lead ^ ^ injected zirconium citrate caused over a threefold increase in the radiolead excreted during the first 24 hours and a decrease in the kidney concentration 395 ABRAMS ABRAMS ABRAMS Lung Carcinoma in Nickel Workers A.C. L^,ken Laegefor No. 11 375 1950 in Norwegian Tidsskr Norske Three cases of pulmonary cancer in workers of a nickel refinery are mentioned The patients were treated in the same surgical department within a short period of time No other cases of pulmonary cancer had been diagnosed among the rest of the workers at the nickel refinery concerned The workers are not and have not been exposed to nickel carbonyl but have been exposed to dust and fumes of nickel and some other nickel compounds -- Arch Ind Hyg & Occ Med ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS RE RE Exposure to Silver Dust J. Am Med Assn 148 Queries and Minor Notes 781 March 1 1952 Some employees in a factory are exposed several days per year to high concentrations of silver dust and occasionally to skin contact with silver nitrate The query concerns methods of estimating silver in the urine and the possibility of systemic damage The reply is that silver salts are toxic and fatalities have occurred which may not be attributable to silver per se Apart from the toxic properties of the salts argyria and possible dermatitis the silver ion is regarded as harmless A roughly quantitative method for determining silver in urine is described but it has no great diagnostic value 03119282 Candidate A person who stands for what he thinks the people will fall for -- Outdoor Industry Industrial Hygiene Digest - 12 April 1952 0 14 28 Vanadium Poisoning from Cleaning Fired Boilers N. Williams Brit J. Ind Med 9 50-55 Jan. 1952 Vanadium is found in crude oil ash in varying percentages depending on the source of the oil 45 in Venezuelan and 14 in Iranian oils but much smaller in most American oils Vanadium intoxication in eight men cleaning fired burners with no dust control or protection is described The method of investigation of the original complaints the preventive measures instituted and the results achieved are discussed The principal symptoms were severe coughing fatigue and a greenish coating on the tongue In some cases vanadium was found in the urine but no other abnormality was found in chest rays electrocardiograms or urine analysis Successful preventive measures included doing part of the cleaning from outside the boiler use of a water spray in dismantling brick walls and the use of respirators A Study of the Conditions Under Which Hazard in Industry G. Leaf and L. 19-31 January 1952 Methanol Zatman May Brit Exert a J. Ind Toxic Med 9 ABRAMS ABRAMS ABRAMSABRAMS ABRAMSABRAMS ABRAMS ABRAMS ABRAMS RERE RE Owing to the slow elimination of methanol from the body repeated exposures may result in accumulation and therefore a toxic hazard The absorption and elimination of methanol were studied in man and checked by animal experiments Over short periods the amount of methanol appears to be approximately proportional to concentration and duration of exposure . The rate of elimination is proportional to the concentration in the body Only about is eliminated via the respiratory and urinary routes It was concluded that exposure to a methanol vapor concentration of about 3,000 ppm for eight hours a day may cause accumulation in the body and thus give rise to a toxic hazard A maximum safe limit of 300 ppm is suggested -- Cond from Authors Summary Absorption Distribution and Elimination of Radioactive Carbon Tetrachloride By Monkeys Upon Exposure to Low Vapor Concentrations D.D. McCollister W.H. Beamer G.J. Atchison and H.C. Spencer J. Pharmacol & Exper Therap 102 112-124 1951 Rhesus monkeys inhaled air containing 46 ppm of radioactive carbon C14 labeled carbon tetrachloride for 139-300 minutes About 30 of the inhaled carbon tetrachloride was absorbed The highest concentration of deposited radioactive material was in the fat 7.94 times the concentration in the blood C14 was found in the blood carbonate exhaled carbon dioxide and urinary urea and carbonate Most of the radioactivity in the urine appeared to be present in a nonvolatile fraction other than urea carbonate or amino acids This material was retained on exchange resin and was converted to another unidentified substance by acid hydrolysis The equivalent of at least 51 of the absorbed . 03119283 Industrial Hygiene Digest - 13 April 1952 1993 1993 1993 1993 1993 1993 400 NovemberNovember November November November NovemberNovember November 401 November November November ABRAMSABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS RERE RE 0 14 29 carbon tetrachloride was eliminated in the expired air within 1800 hours The remainder was excreted to a large extent in the urine and feces In monkeys receiving skin exposures to radioactive carbon tetrachloride vapor for four hours negligible amounts of radioactive material were found in the blood and expired air _ Chem Absts A Pathological Report of Eight Cases of Methyl Bromide Poisoning J.H. Prain and G.H. Smith Brit Ind Med 9 44-49 Feb. 1952 The results of poisoning by the inhalation of methyl bromide are described in an incident in which eight boys were exposed to the vapor six of whom died The main clinical features and mortem findings are given and note on the survivors two years after the accident -- Authors Summary Contribution to the Study of the Toxicology of Trichloroethylene II Results of Animal Experiments R. Fabre and R. Ind Med 9 39-43 February 1952 French Truhaut Brit J. Both trichloroethylene and trichloracetic acid derived from it are deposited in the endocrine glands kidneys brain blood and most of all in the spleen and lungs This localization agrees with nervous symptoms observed in poisoning In the blood trichloroethylene and to a less extent trichloracetic acid are fixed in the red corpuscies This elective fixation explains the accumulation in the spleen Sodium fluoride inhibits the transformation into trichloracetic acid Trichloroethylene is eliminated rapidly in expired air and urine while trichloracetic acid disappears much more slowly by the urinary route -~- Cond from Summary Experimental Carbon Disulfide Poisoning F. Krejck Z. Marlo and B. Soucek Pracovni Lekarstvi 3 124 June 1951 Czechoslovakian The authors were able to confirm that in rats and rabbits exposed for two to six hours at atmospheres containing 800 and 1500 gamma of carbon disulfide per liter of air the blood is saturated very rapidly with this compound in approximately one at most two hours of exposure the carbon disulfide in the blood reaches a concentration given by a division coefficient of 2-3 Other body tissues are not saturated even after six hours of exposure The fatty tissues retain carbon disulfide to a consider- able degree intestinal fat about three times as much as subcutaneous fat All fatty tissues retain the compound tenaciously and release it slowly The tissues of the nervous system e the brain the spinal cord and the peripheral nerves retain the carbon disulfide differently and characteris- tically The relation of the contents of free carbon disulfide in these tissues is 4.5 This distribution corresponds well with clinical observations When the exposed animals are left in the open air their tissues desaturate at varying rates most quickly from the blood then the fat then the nervous system them as during saturation The same equilibrium is maintained between - Cond Arch Ind Hyg & Occ Med oe lvenheebe 03119284 Industrial Hygiene Digest - 14 April 1952 403 19193 01438 1993 Three Cases of Chromic Myeloid Leukemia Due to Benzene J. Bousser and S. Tara Arch Maladies Profess 12 399-404 1951 French One of the cases presented is an example of retarded benzolism The man had worked for six years in an atmosphere containing considerable amounts of benzene fumes symptoms did not appear until two years later 1993 Benzene was found in the blood with low red cell and very high 148,000 per cu mm white cell counts In the other cases benzene poisoning with November November November November November similar blood effects occurred while the men were exposed and under medical supervision Radiotherapy and transfusion were effective in two of the cases The white cell count in one case moved from 10,000 up to 30,000 Such a count is interpreted as a sign of medullary irritation and may be the forerunner of aplastic anemia The opinion is expressed that a white count over 10,000 should call for removal from all exposure to benzene fumes November -- Cond from Bull Hyg November November >) : :: Severe Corneal and Conjunctival Injuries of the Palebral Fissure Area in Hydroquinone Workers M. Krahnstover Zent Arbeitsmed Arbeitsschutz 1 75-80 July 1951 In German Over a period of 20 years the author has examined about a dozen cases of ocular injury among workers for a firm manufacturing hydroquinone Effects on the cornea and conjunctiva are described in detail The less severe cases generally healed without sequelae but three cases resulted in permanent severe reduction of visual acuity in spite of surgical treatment Preventive measures are recommended --Cond from Bull Hyg ABRAM ABRAM ABRAM ABRAM ABRAMABRAM ABRAM ABRAM RE Toxicological Studies of Orthophenylphenol Dowicide 1 H.C. Hodge E.A. Maynard H.J. Blanchet Jr. H.C. Spencer V.K. Rowe J. Pharmacol Exptl Therap 104 202-210 February 1952 Orthophenylphenol has a low acute oral toxicity for male rats the LD found was 2.7 kg Neither a % solution in sesame oil nor a 0.1 aqueous solution of the sodium salt caused either primary skin irritation or skin sensitization in human subjects Rats maintained for two years on diets containing up to 0.2 phenylphenol showed no adverse effects but when the diet contained % of the material it caused slight retardation of growth histological kidney changes and the presence of small amounts of phenylphenol in the kidney tissue Dogs showed no adverse effects from a diet containing 0.5 g per kg per day of phenylphenol over a period of one year -- Cond from Summary Trinitrotoluene Poisoning in Tunnel Worker G. Seland Nord Med 46 1170-1171 August 1 1951 Swedish After 15 years work as a tunneler a year old man developed aplastic anemia which led to death in one year It had been his habit to carry explosive charges containing N. in his pockets The anemia and other symptoms were of the same type as those found in trinitrotoluene poisoning -- Author's English Summary Bull Hyg 03119285 Industrial Hygiene Digest - 15 April 1952 407 CC666I6I 0143 C66I C66I C6 I C66I Tetryl Toxicity A Summary of Ten Years Experience B.B. Bergman Arch Ind Hyg & Occ Med 5 10-20 Jan. 1952 The history the properties and the manufacture of tetryl are briefly reviewed The sum of 10 years experience with this explosive in relation to the toxic reactions is presented It is most worthy of noting that during this period no case of suspected constitutional poisoning due to CC66I66I tetryl was encountered The most troublesome reaction was the skin- JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON sensitization phenomenon Epidermal discoloration and effects on the respiratory tract and the gastrointestinal system are discussed and a method of handling the patients is presented The importance of JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON recognizing psychoneurosis in tetryl workers is noted No neurological hematopoietic or cardiovascular symptoms were observed The hygenic JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON problems associated with tetryl handling are reviewed and the importance of examining workers before work and limiting exposure is stressed -- Author's Summary 408 JOQUIOAN ABRAMSABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMSABRAMS ABRAMSABRAMS ABRAMS Methemoglobinemia of Acute Aniline Intoxication in Experimental Animals and Human Beings Cyanosis and Anemia Due to Heinz Bodies L. Ghiringhelli and C. Molina Med Lavoro 42 125 Apr. 1951 Italian Four cases of acute poisoning from aniline dye through the use shoes dyed black with aniline are described In these cases the methemoglobin reached the level of 17 to 26 gm per 100 cc of hemoglobin The results of experimental poisoning in dogs by means of subcutaneous injection of 30 mg./kg of aniline or intravenous injection of 10 mg./kg of aniline were also reported With the subcutaneous injection a methemoglobinemia which varied from 29 to 68 and with intravenous injection a methemoglobinemia of 19.26 was obtained In both the cases of poisoning in man and those of experimental poisoning the cyanosis was proportional to the degree of methemoglobinemia The methemoglobinemia disappeared rapidly from the blood Heinz bodies were observed in the red corpuscles a few hours after poisoning They increased in number even after the methemoglobin had disappeared from the blood In all cases a slight anemia appeared which was not related to the intensity of the methemoglobinemia but to the abundance of Heinz bodies --Arch Ind Hyg & Occ Med 0409 RE RERE RE RE RERE Carcinogenic Studies on Carbamate Ind Med & Surg 21 71-74 February 1952 W.C. Hueper carbamate is being manufactured for use as a weed killer in dust form Its possibility as a carcinogenic agent was studied The observations made in the different experiments in mice and rats support the negative results reported by Larsen The observation time covered the greater part of the life span of the animals and the chemical was administered by three different routes It is pointed out that a carcinogenic reaction in man has not entirely been excluded 03119286 Ree Industrial Hygiene Digest - 16 April 1952 0 14 32 410 An Experimental Inquiry into the Cause of Industrial Bladder Cancer M. Bonser D.B. Clayson and J.W. Jull Lancet 261 286-288 1992 August 18 1951 ; 1992 1992 1992 naphthol conjugates have been identified in the urine of dogs and other species after the administration of purified naphthylamine 1992 1992 a dye intermediate known to be a bladder carcinogen in man and the dog The approximate correlation between the amounts of the conjugates in the urine mber and the incidence of bladder tumors in different species provides a possible mber mber explanation of the observed differing species susceptibilities amino naphthol hydrochloride tested for local action on the bladder epithelium of mber mber the mouse has been found to be a carcinogen of the same order of potency as methylcholanthrene -- Authors Summary 1 AONI AONI AONI AONI AONI AONI ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS The Toxicologoyf Dieldrin and Its W. Hayes Jr. F.F. Ferguson 31 519-522 1951 Bearing on Field Use and J.S. Cass Am of the Compound J. Tropical Med Judging from experiments on nine species of laboratory animals skin contamination of man with concentrates of the insecticide dieldrin would be hazardous minor skin contamination with emulsions used in spraying might be tolerated without demonstrable damage Crystalline dieldrin is absorbed by the unabraded skin almost or quite as readily as solutions in organic solvents The effects on animals are listed they are mostly neurological disorders Animals killed by dieldrin do not usually show lesions sufficient to cause death No injury has been found in workmen on limited operational programs It appears that dieldrin can be used safely as an outside residual spray only by appropriately trained personnel -- Cond from Biol Absts ABRAMS ABRAMS ABRAMS Selective Herbicides and Growth Substances Pathologic Effects on During the Manufacture of the Ester of 2,4 M. Assouly Arch Profess 12 26-30 1951 French Man Mal ABRAMS ABRAMSABRAMS RE RE RE RE RE Workers employed in the manufacture of an ester of dichloro- phenoxyacetic acid complain of somnolescence with heaviness of the legs irritation of the upper respiratory passages gastralgia with loss of appetite of a sweet taste in the mouth with increased salivation a sensation of drunkenness and hypersensitivity of hearing the least sound causing them to jump In animal experimentation it was shown that when 2,4 was ingested or injected intravenously high doses were required to produce intoxication -- Biol Absts Tissue Distribution Accumulation and Elimination of the Isomers of Benzene Hexachloride B. Davidow and J.P. Frawley Proc Soc Exptl Biol Med 76 780-783 April 1951 The four isomers of benzene hexachloride were found to be stored mainly in the adipose tissue of both rats and dogs but some storage also occurs in other tissues The gamma isomer was found to be the most - 03119287 Industrial Hygiene Digest - 17 April 1952 CCBI CCBI toxic after single doses but the beta isomer has the highest chronic toxicity The chronic toxicity of each isomer appears to bear a direct . relation to storage in the adipose tissue -- Cond from Bull Hyg CCBI 0 14 3 414 Blood Cholinesterase Levels in Workers Exposed to Phosphorus CCBI CCBI Insecticides M. Barnes and D.R. Davies Brit Med J. 2 816-819 October 6 1951 JOQUIOAON JOQUIOAON JOQUIOAONJOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON 415 JOQUIOAON JOQUIOAON The cholinesterase levels of 80 men and women exposed to phosphorus insecticides in the field or factory have been determined Three criteria of departure from normal variation of enzyme levels have been described On the basis of these standards abnormal variations which are probably attributable to insecticide absorption have been recognized in 12 individuals The departures from normality were very slight No serious case of poisoning was observed These observations emphasize the value of the test and their significance in relation to the incidence of insecticide poisoning in field and factory workers is discussed -- Authors Summary Health Hazards Associated with with Parathion F.R. December 1951 Ingram the Use of Airplanes Am Ind Hyg Assn for Dusting Quart 12 _ Crops 165-170 ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS : RE RE RE RE ININ ININ [ The use of aircraft for applying insecticides to crops is described with particular reference to California's experience in dusting with parathion Atmospheric samples represented only potential exposures since a gas mask worn Blood cholinesterase activity levels were determined at fifteen intervals The tests constitute a valuable basis for estimating the efficiency of protection measures and for recommending temporary change in work status Methods and results of the tests are described Individual safe practices are recommended -- Cond from Author's Summary Effects of Dimethyl and Diethyl Paranitrophenyl Thiophosphates on Experimental Animals W. Deichmann W. Pugliese and J. Cassidy Arch Ind Hyg & Occ Med 5 44-51 January 1952 The toxicity of dimethyl paranitrophenyl phosphate was compared with that of the corresponding diethyl compound parathion in animal experiments The toxicity of both compounds is increased by some solvents and decreased by others A high degree of purification removes impurities which are more toxic than the compounds studied The dimethyl compound is less toxic than the diethyl form but it must be recognized that the dimethyl compound and its formulations are highly toxic The safety measures recommended for parathion should be applied with equal vigor to insecticidal preparations containing the dimethyl homologue Exposure by skin contact inhalation or ingestion must be carefully avoided - Cond from Authors Summary eo - ene Sef mesh Fe 03119288 . Industrial Hygiene Digest - 18 April 1952 0143 417 1992 Tricresylphosphate in Soft Igelit W. Borgmann and G. Hunold Z. Hyg 1951 German Percutaneous Toxic Infektionskrank 133 Action 26-44 1992 Tricresylphosphate is used to soften a polyvinyl chloride preparation 1992 under the name of Igelit used for flexible tubing and wrapping material for 1992 1992 food products and other materials Technical tricresylphosphate is a mixture of its three isomers of which the ortho form is most toxic The November November ortho form comprises 30 of the commercial preparation Experiments with rabbits showed that the phosphate can definitely be absorbed through November November November November November the intact skin Particulars of the experiments and of the pathological results of the poison are fully presented It was also found that human sweat and animal and vegetable fats can dissolve an appreciable amount of tricresylphosphate from softened Igelit Such a material should not be November used for the manufacture of articles which may come in contact with November the skin -- Cond from Bull Hyg November Polyneuritis due to Parathion H. Petry Zent Arbeitsmed November November Arbeitsschutz 1 86-89 July 1951 German A case of polyneuritis in a worker with extensive exposure to parathion spray without respiratory protection is described Treatment led to only partial recovery -- Cond from Bull Hyg FO ABRAM ABRAM ABRAM ABRAM ABRAM ABRAM ABRAM ABRAAM BRAM ABRAAM BRAM ABRAM ABRAM Toxic Chemicals in Agriculture Report to the Minister of Agriculture and Fisheries by the Working Committee on Precautionary Measures Against Toxic Chemicals Used in Agriculture M. Stationery Office This report calls attention to fatalities resulting from the use of insecticides considers the protective measures now in and recommends additional practices especially in protective clothing and sanitation An extensive summary of the report abstracted from the Bulletin of the Committee on Pesticides of the A. M. is given in Arch Ind Hyg & Occ Med 5 174-176 February 1952 RE RE RE RE RE RE Relative Toxicity of Insecticides W. Simmons and W. Hayes Jr. Soap & Sanit Chem 27 148-150 Dec. 1951 IN A tabulation of accidental deaths caused by chemicals over the past ten years shows that 1 chemical poisoning occupies a minor place as a cause of death and 2 that there has been no significant change in the rate of fatal chemical accidents in spite of the introduction of new insecticides and other chemicals Pesticides account for only % of chemical fatalities This good safety record is due in part to intelligent enforcement of federal and state legislation and in part to educational campaings The toxicity of the various types of pesticides is reviewed Proper vigilance will reduce the number of cases of popiosisoonniinngg 03119289 Industrial Hygiene Digest - 19 April 1952 421 1992 1992 1992 1992 1992 1992 November November November November November 422 November November November November November ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS Insecticides Rodenticides and Fumigants Employed in Public Health Activities National Research Council Division of Medical Sciences Washington 25 D.C. 1952 Reprinted in Modern San 4 21-23 Mar. 195201435 This is a selected list of pesticides which play an important role in public health activities giving their common synonyms or trade names chemical names and formulae together with notes on their mammal toxicity This list was prepared by a subcommittee at the request of the Air Force field personnel and has been approved by the Committee on Sanitary Engineering and Environment for distribution to all interested workers in the field Toxicology and Hazard Record of the Newer Pesticides F. Princi Agr Chemicals 7 44-47 97-103 Jan. 1952 The author discusses difficulties inherent in the assessment of toxicity of pesticides It has been demonstrated many times that the results of animal experimentation cannot give reliable evidence on human toxicity For instance nitrogen trichloride has been found injurious to dogs but there are no known cases of human poisoning On the other hand beryllium has failed to show in animals the same effects as on the human body The only conclusive evidence then on toxicity to man rests upon clinical experience and reports of poisonings The cases of poisoning by the other organic phosphates organic mercury compounds and chlorinated hydrocarbons have been mostly from either accidental or purposeful ingestion or from other accidental exposure involving gross carelessness That is particularly true of DDT on which the reports are fullest In the use of enormous quantities of pesticides evidence of poisoning resulting from their use with ordinary care is almost nonexistent There is no foundation for the sensational adverse publicity that has been given these materials ABRAMS 423 ABRAMS ABRAMS : RE RE RE RE IN IN IN A Contribution to the Study of Allergic Rhinitis of Occupational Origin G. Mancioli Rass Med Ind 20 21-37 Jan. 1951 Italian Three cases of allergic rhinitis were found among 22 chromium workers exposed to chromate mists the diagnosis of allergy was confirmed by a skin test The author dso examined 32 persons employed in flour mills and found a positive allergic reaction to finely ground grain but only six appear to have suffered from vasomotor rhinitis -- Cond from Bull Hyg Why Oxygen Pressure Has A Rapid Killing Effect K. Leneggenhager Z. Ges Exper Med 116 353-377 1950 German The subjective and objective symptoms due to an atmosphere of pure oxygen under a pressure of 4 to 6 atmospheres in rats mice frogs flies and men are described in detail In men increased oxygen consumption 03119290 Industrial Hygiene Digest - 20 April 1952 and carbon dioxide exhalation resulted the body temperature rose approximately 0.5 degree the blood carbon dioxide sugar and pressure 1999 1999 1999 remained unchanged while the pH fell from 7.564 to 7.491 Normal 0 14 36 brain liver and kidney tissue had a strong reducing action as evidenced 1999 1999 by reduction of indigodisulfonic acid to the leuco base in less than 0.5 hour 1999 Tissues of animals under oxygen pressure lost their reducing power The 1999 data point to functional brain damage as the cause of --Chem Absts November NovemberNovember November November INDUSTRIAL DUSTS Silicosis of Sandstone Cutters in Switzerland E. Burri Z. Unfallmed Berufskrankh 44 63-75 Mar. 15 134-157 June 15 1951 German November November ABRAMSABRAMS ABRAMSABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS Although the quartz content of the sandstones worked in Switzerland is fairly high the silicosis of stonecutters does not run a bad course From 1933 to 1948 86 stonecutters were found to have silicosis The characteristic ray findings are hard nodules like calcifications and later on coatlike pleura indurations Tuberculosis is the complication occurring most often Despite silicosis and its complications the sandstone cutters reach an age above the average of the Swiss population Twenty contracted no silicosis in spite of long exposure to dust As the workers are rather old when aware of the disease they hardly ever change their occupation Medical and technical prophylactic measures are taken to protect the workers from silicosis such as moistening the stones but all work should be done in the open air or in huts equipped with air circulation 1- Cond from Bull Hyg Tuberculosis and Tuberculosis Among Belgian Coal Miners V. vanMechelen Institute Hygiene des Mines Hasselt Belgium Communication No. 84 7 pp July 15 1951 French RERREE RE RE ININ IN [ An examination of 49,216 miners brought to light 0.23 with active tuberculosis and 2.26 with healed tuberculosis of the lungs These data suggest that tuberculosis is rare among Belgian working miners owing possibly to the strict preemployment examination Miners however who have any respiratory trouble show a high incidence of tuberculosis This infection is also frequent among those in an advanced stage of anthracosilicosis BCG vaccination is not useful among those exposed to silica dust Freedom from further dust exposure does not improve prognosis if tuberculous infection is established Medical supervision is required to detect early cases and to watch over those detected -- Cond from Bull Hyg 03119291 Industrial Hygiene Digest - 21 . April 1952 1992 MWB8-01437 427 1992 1992 Acute Silicosis in Alpine Tunnels Arch Mal Profess 12 321-323 E. Grunwald and P. 1951 In French Minelli This report concerns three workers belonging to the same family who developed silicosis after comparatively short periods of exposure to 19921992 dust while employed in tunnels the Alps The periods of exposure 1992 19 2 ranged from 2 years to 3 years and 4 months There was no history of tuberculosis in the family and all bacteriological tests were negative November November NovemberNovember November November NovemberNovember All the cases observation hazard or its were progressive and severe No information is given as to composition} and one man died while under the constitution of the dust -- Cond from Bull Hyg 428 November November November Pneumoconiosis in Agate Grinders H. Schramm Zentr Arbeitsmed Arbeitsschutz 1 105 Sept. 1951 German In a factory in southwestern Germany agate stones are ground with sandstone grinding wheels Silicosis in all stages was observed in 29 of the 318 grinders examined Those who had moderate or severe silicosis had been in the occupation 27 to 30 years Some improvement in November conditions has been achieved by better apparatus and by irrigation of the sandstones but elimination of the dangerous dust can be more nearly attained by the substitution of artificial grindstones -- Cond from Arch Ind Hyg & Occ Med 429 ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMSABRAMS ABRAMS ABRAMS ABRAMS 430 ABRAMS : RERE RE RERE Silicosis from Melting Bauxite M.N. Krasnagorskaya Gigiena i Sanit No. 10 26-28 1951 Russian Examination of working conditions at the sites of bauxite melting and production of silicon carbide revealed rather heavy dust formation during the operation In several cases silicosis in various stages was detected but no severe cases were found Better ventilation suggested -- Chem Absts Aspects of the Silicosis Problem P.F. Holt Nature 169 306-307 February 23 1952 Abstract of Lecture The author reviews the theoretical aspect of silicosis with attention to recent developments such as the action of silica on proteins the effect of alkalies and the presence of organic silicon compounds in the tissues 431 > IN ININ The Bone Marrow in 201-210 June Silicosis G. Saita and C. DiNaro Med 1951 Italian with English Summary Lavoro 42 Myelograms for 20 cases of silicosis were studied by means of sternal puncture In pure silicosis the bone marrow is little affected When tuberculosis is present the myelogram is similar to that found in chronic infections The various pathological features are described -- Cond from Bull Hyg 03119292 Industrial Hygiene Digest - 22 April 1952 01438 432 The Cardiovascular Reactions of Silicosis and Anthracosilicosis A Contribution to the Study of Cor Pulmonale F. Lavenne Institute 366T 366T NWB 366T366T d'Hygiene des Mines Hasselt Belgium mimeographed 1951 In French Communication No. 83 11 pp Cor pulmonale is a frequent complication of silicosis and 366T anthracosilicosis especially of the massive conglomerate type Among the coal miners of South Wales with anthracosilicosis 23.7 died of right venmber venmber venmber venmber venmber venmber heart failure Cor Pulmonale develops as a result of both pulmonary and cardiac insufficiency It is frequently difficult to separate the pulmonary manifestations from the cardiac manifestations The development and venmbervenmber venmbervenmber venmber stages of cor pulmonale can be established by definite electrocardiographic ray and clinical criteria Some of these criteria are discussed by the author Miners who have been exposed over a long period and whose lungs contain many coal nodules should be kept on the job since pulmonary fibrosis is inevitable venmber Gy NI NI NI However the heart and lungs of such miners should be examined at least once a year In the determination of worker disability electro- cardiographic findings as well as the use of the ray and computation of maximal breathing capacity serve to establish the degree of pulmonary and cardiac pathologic change -- Arch Ind Hyg & Occ Med 433 433 433 The Action of Different Forms of Silica in Sensitized Animals Frankfurter Z. Path 60 58-96 1949 German W. Koch | N uC a (' | Animals were given repeated subcutaneous injections of quartz vil or colloidal silica together with albumen nucleic acid or a specific antigen mixture called Gripcalin Animals were killed and examined from a few weeks up to 36 months The tissue reactions are described in detail With quartz a foreign body granuloma is followed after a few weeks by necrosis which is complete after five months Fibrosis is just visible after six months and very well developed after three years Fat ABR ABR accumulates during the necrotic and early fibrotic ABR seen in the late fibrotic stage stages but little fat ABR ABR When colloidal but no fibrosis occurs site of the injections silica is administered the early stages are the same up to 18 months Cysts then develop but not at the They may reach several inches in diameter The end cysts contain 4.4 silica 92 protein and water 3.5 lipoids and fats RI and 1.1 other ash The animals lose resistance to infection and die within RI few months A detailed but speculative discussion follows the report of RI RI RI results One chief point is that the action of the quartz is due both to foreign effect and silica solubility IN With colloidal silica small amounts are completely removed too large amounts lead to instantaneous death intermediate doses as in the experiments described result in the formation of a complex between silica fat and protein - Cond from Bull Hyg 03119293 Industrial Hygiene Digest - 23 April 1952 01439 434 C66I C66I Penetration of Dust Particles and Sites of Dust Stores in Pneumoconiosis G. Mottura Brit J. Ind Med 9 65-69 January 1952 The author presents additional evidence in support of his theory that dust particles in the lungs are generally carried as such the lymph C6I stream and in the liquid on the surfaces and in the interstices of alveolar tissue and not primarily by phagocytes IHF Absts 77 78 Jan. 1952 435 IOQUOAON IOQUOAON IOQUOAON IOQUOAONIOQUOAON Streptomycin Treatment in Silicosis with Tuberculosis F. Mtt der Med Abt der Suva No. 27 pp Jan. 1951 Lang German No beneficial effect followed streptomycin treatment of 25 out of 32 cases of silicosis with tuberculosis In the other seven there was some improvement but No reports are as other drugs in only four was yet ready on the even partial working capacity restored effect of streptomycin combined with -- Cond from Bull Hyg 436 Experimental Asbestosis W. Behrens Schweiz z Allg Path u Bakt 14 275-297 1951 In German ABRAMS ABRAMS Pure chrysolite asbestos was injected intraperitoneally and intratracheally into mice and rats The fibers varied from 5 to 180 microns in length Unsuccessful attempts to secure fibers of standard length are described The general picture is one of specific focal fibrosis resulting from the introduction of foreign No solution or toxic action of the asbestosis could be demonstrated Asbestosis bodies were not formed The theories of the pathogenesis of asbestosis are discussed -- Cond from Bull Hyg 437 ABRAMS ABRAMS Pneumoconiosis Due to Talc G. Kohler G. Leopold and W. Steyer Z. Artzl Fortbildung 45 375-382 July 15 1951 German A survey was made in factory in Leipzig making talc powder for cosmetic and medical purposes where until 1944 talc was the only mineral base used although minor amounts of kaolin and colloidal silica were used for time later Among 28 workers one case of stage 2 pneumoconiosis and two of stage 1 were found after 19 25 and 30 years exposure respectively Clinical observations show little or no disability for stage 1 but emphysema bronchitis a reduced vital capacity and shortened apneic pause for stage 2 The radiological pictures resemble asbestosis rather than silicosis Working conditions and materials are described and size distributions are given Initial and annual ray checks are recommended Modern exhaust ventilation has greatly improved dust control since 1940 -- Cond from Bull Hyg y are . e x ep 03119294 Industrial Hygiene Digest - 24 April 1952 014 0 438 C66I Pseudoasbestosis Bodies Called Carborundum and Graphite Bodies A. Glauser and J.R. Ruttner Experientia 7 275-276 1951 German C66I Curious bodies pseudoasbestosis bodies caused by the presence C66I of the cubic modification of carborundum and of graphite in the lungs of C66I a pencil factory worker are described The substance surrounding the C66I minerals showed the same physical and chemical qualitites are C66I reported in case of asbestosis --Authors Summary in Biol Absts OQUIOAON OQUIOAON OQUIOAON OQUIOAON OQUIOAON OQUIOAON OQUIOAON OQUIOAON OQUIOAON OQUIOAON Effect of Barium Sulfate Dust in Man R. Camba Med Lavoro 42 221-226 June 1951 Italian A clinical and radiological study has been made of 14 workmen who had been employed for periods varying from 2 to 24 years in mining grinding and sacking barium sulfate in Sardinia No obvious radiological evidence of pneumoconiosis was seen but only clinical or radiological evidence of active or healed inflammatory disease of the respiratory system including the pleura not related to occupational causes -- Author's English Summary Bull Hyg OQUIOAON OQUIOAON OQUIOAON The Experimental Production of Radiographic Shadows by the Inhalation ofIndustrial Dusts T.A. Lloyd Davies Part II Zircon ZrSio H. E. Harding and Brit J. Ind Med 9 70-73 January 1952 ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS Dense radiological shadows are produced by aggregates of phagocytosis containing zircon Apart from phagocytosis and possibly slight small cell accumulation there is no evident reaction to the presence of zircon in the lungs of rats Since zircon is less toxic than silica and possibly completely inert and since animal experiments suggest that it is less readily inhaled into and retained in the lungs than the latter it could provide a desirable substitute for silica -- Authors Summary ABRAMS ABRAMS PHYSICAL ASPECTS OF THE ENVIRONMENT 20 (eo) Sound and Its Measurement Hyg . R. & Occ . Me.d , 97-108 97-108 , L. L. Beranek Arch February , 1952 . Ind This paper is the first of a series read at a Conference on the IN Problems of Noise in Industry held at Atlantic City IN IN The principles of sound measurement are discussed IN April 23 1951 In order to | IN approximate the response of the ear it is necessary both to measure the sound level and to analyze the frequency of the sound Also three adjustments of the sound level measuring instruments are necessary 03119295 Industrial Hygiene Digest - 25 April 1952 to cover the audible recorder and their noise are discussed range The accessories briefly sound meter the analyzer and are described Methods of reducing 014 442 Industrial Plant Environmental Study C.R. Williams Arch Ind Hyg & Occ Med 5 108-112 February 1952 NovemberNovember NovemberNovember November November November November There are many problems to be solved before adequate noise appraisals can be made in plants and measurements at present must be in the nature of research Portable frequency analyzers are in very short supply and only an increased demand can correct that situation There is little information on the sound levels and frequencies that can damage hearing and our only hope is the accumulation of data in industrial plants Important aspects of a noise survey include 1 study of details of construction of the plant 2 obtaining sound data throughout the plant a fixed stations 3 detailed studies of individual noise sources and 4 study of noise sources in an attempt to determine precisely what is responsible for each of the various frequency band levels In addition audiometric studies of exposed individuals should be conducted simultaneously with the noise survey wherever possible 443 ABRAMS ABRAMSAABBRRAAMMSS ABRAMS ABRAMS EstimatingPercentage Loss of Hearing H.A. Carter Arch Ind Hyg & Occ Med 5 113-11113-611163-116 Feb. 1952 The author discusses the method of estimation of hearing loss adopted by the American Medical Association in 1942 and described by him at that time IHF Abst 367 1944 Now after nine years its limitations are beginning to appear and further examinations of the method including the compensation aspects are being made by several organizations ABRAMS 444 ABRAMS : RE RE RE RE RRE ERE RE IN IN IN Noise Safety Criteria K. Kryter Arch Ind Hyg Occ Med 5 117-120 Feb. 1952 Three criteria for noise safety are necessary 1 for voice communications 2 for deafness and 3 for moonauditory work output Values for the limiting sound level suggested are 40 85 and 100-110 decibels under specified conditions of pressure and frequency However especially for deafness effects the spectrum of a noise must be analyzed and the value given may be revised upward for certain frequencies The ordinary factory noise at the level given can be tolerated with no detrimental physiological or psychological effects possible ear damage when the worker is adapted to the noise 03119296 Industrial Hygiene Digest - 26 April 1952 19919 014 2 445445 1999 Ear Lesions Caused by Acoustic Trauma Arch Ind Hyg & Occ Med 5 121-123 R. Guild February 1952 The normal anatomy of the ear and pathologic cases are described with the assistance of a number of slides The primary lesion caused by 19991999 19199999 1999 1999 acoustic trauma is the destruction of the hair cells of the organ of Corti It may be confined to a few outer hair cells or may include a large portion of the outer and inner cells with damage to the supporting parts Changes may also occur in the ganglion cells and nerve fibers All these changes November November are irreversible November November November November November November November November NovemberNovember Clinical Aspects of the Problems of Noise in Industry Arch Ind Hyg & Occ Med 5 124-128 February H.P. House 1952 The diagnosis of early acoustic trauma is not difficult Audiometric tests will reveal a characteristic dip the frequency of 4000 cycles per second long before the patient becomes aware of symptoms referable to his ear The differential diagnosis of more advanced acoustic trauma after the patient becomes aware of his hearing loss is more difficult Therefore preemployment and routine periodic audiograms are essential not only to diagnosis establish an accurate November November but much more important to detect acoustic trauma at the earliest possible moment in order that protective measures may be instituted -- Author's Summary 447 , Noise and Noise Reduction Control Methods Applied Arch Ind Hyg& Occ Med 5 129-137 February W.D. 1952 Boynton BRAM The author discusses the fundamentals of noise measurement and effects and describes the methods of noise reduction used in a particular factory Installation of absorbing materials only restricted the spreading of noise Enclosing the machines made access difficult Analysis of noise from parts of the machines located local sources and in many cases substitution of less noisy parts was found practicable BRAM 44 / The Legal Aspects of Occupational Deafness N.S. Symons Arch Ind Hyg & Occ Med 5 138-156 February 1952 Lo ~~ HAT HAT The author presents a number of compensation cases in which deafness was involved coming under the jurisdiction of the New York HHAATT State law They illustrate a number of problems involving inconsistencies HAT of the law and difficulties in assessing disability The author maintains NI that the intent of law is to provide compensation only where there is NI disability in spite of court decisions to the contrary Several junanswered legal problems are presented We should seek a solution NI which is fair to the individual to industry and to the public If this be our goal I am confident that the answer to the problem of noise in industry will not be long delayed 03119297 . Industrial Hygiene Digest - 27 April 1952 CCGI 0143 449 CCGI CCGI CCGI CCGI CCGI The Noise Problem in Industry H. Walworth Quart 13 17-22 January 1952 March 1952 also Tenn Ind Am Hyg Ind Hyg Assn News 9 1-7 The author calls attention to a number of problems to be solved in order to evaluate the physiological effect of noise He shows that in the broadest meaning of industrial hygiene the measurement and control of noise is one of its proper functions Before permissible noise levels are established the factors of frequency and individual susceptibility are JOQUIOA N to be considered and at present the data on those points are insufficient to develop standards The methods of noise measurement are described including frequency analysis and their limitations are discussed The JOQUIOAON basic methods of noise include substitution of products manufactured by quiet processes segregation of noisy processes and the use of ear protectors So far the factors of comfort efficiency and cost of ear protectors have not been generally evaluated but they are being studied Industrial hygienists should acquire a knowledge of the basic principles involved in noise control 450 How to Baffle Plant Noise Anon Occ Hazards 14 47 70 Mar. 1952 In a particular machine shop noise was greatly reduced by hanging a series of baffles from the ceiling They consist of rigid acoustical panels of fibrous glass half inch thick and measuring 2 by 4 feet ABRAMS enclosed in plastic film and hang about 5 feet apart Noise has been reduced 35 on the average and the men converse in normal tones throughout the area 451 ABRAMS ABRAMSABRAMS ABRAMSABRAMS ABRAMS ABRAMS RE RE RERE Influence of General Hypoxia on Local Cold Injury J. Pichotka R. Lewis and U.C. Luft Texas Rep Biol & Med 9 601 1951 Observations on frostbite suffered in aircraft and on mountains indicate that the incidence and severity of local cold are greater at high altitudes than at sea level General hypoxia was suspected as a contributing cause and animal experiments were conducted to test that possibility It was found that hypoxia only during exposure and up to thirty minutes before exposure did not affect the extent of necrosis However hypoxia present after local cold injury increased the extent of resulting damage in direct relation to the period of hypoxia This effect may be due either to local oxygen deficiency or to impairment of the peripheral circulation When hypoxia also preceded the cold injury the outcome varied and the difference must be attributed to secondary factors _ -- Cond from Arch Ind Hyg & Occ Med re n 03119298 Industrial Hygiene Digest - 28 April 1952 014 3 (95 ) RADIOACTIVITY AND RADIATION at oyuve 45Z 7 Industrial Radiation Hazards in New York State May R. Mayers PilIf t Monthly Rev. Y. State Dept. In addition to radium dial Labor 31 , 11-12 -Mar 1952 painting operations there are several industriesindustries in New York State which involve exposure to radiation and which will be investigated by the Division of Industrial Hygiene |9 They include the in use of the ray and fluoroscope in inspection of spark plugs and inspection { of plastic moldings fluoroscopes in shoe stores and the radioactive static eliminatoreliminator AVA Each of these applications is briefly described 45Recommended Safe Practice for Radium Dial Painting Plants Anon AONAON Monthly Rev. N. State Dept. Labor 31, 5-8 -Mar 1952 The recommendations outlined in some detail represent a AON minimum of precautions necessary to conform with accepted practice for the safe handling of radioactive luminous materials and the prevention of radium poisoning The recommendations include housing and equipment good housekeeping routine plant inspections radiation measurements ventilation SIA lighting personal hygiene medical supervision and safety standards SIA Permissible Dosageand Considerations of Calculated Risk C.F. Behrens EU S. Atomic Energy Commission 3546 21 pp July 2 1951 os Pathological hematological and genetic effects of radiation are reviewed Permissible limits are discussed from the standpoint of cumulative effects of minimal amounts over long periods of time occasional exposures of patients in clinical radiology the effects of an atomic bomb burst continued effects from an atomic bomb due to contamina- Stion by fission products or resulting from induced radiation exposures * involved by purposeful contamination by radiological warfare agents and incidental to operation of nuclear reactors more especially when eaxnpodsures if employed under conditions when adequate shielding may not be practicable Calculated risk exposures are discussed and compared with permissible dosage ranges Internal hazards from radioactive isotopes are discussed briefly table of permissible dosage determinations for both external and internal permis ible exposures is included adiation i -- Nuclear Sci Absts 03119299 Industrial Hygiene Digest - 29 April 1952 455 The Use of Small Protection Films for the Estimation of the Doses 1991933 0145 1993 1993 1993 Received on the Fingers and Hands During Radium Manipulations M. Robb and R. Ellis Brit J. Radiol 25 100-102 Feb. 1952 A method of measuring the finger and hand doses received during radium operations both medical and physical using small standard ray film packs is described The initial results are also published ~- Authors Summary November November 456 November Dosages Received by Patients During Ray Diagnostic Examinations F. Wachsmann Fortschr Gebiete Rontgenstrahlen 75 728-733 December 1951 German NovemberNovember November November The dosages received by patients during routine ray examinations were measured the values found agree with those known from earlier investigations by other authors Even with modern radiography techniques the dosages given are sometimes considerable Thickening of the filter was found to be a possible means of dosage reduction A nomograph is given with the aid of which dosage determinations can be made easily and quickly -- Author's Summary in Nuclear Sci Absts 457 The Hazard Involved in the Use of Carbon H. Skipper Nucleonics 10 40-44 Feb. 1952 ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMSABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMSABRAMS ABRAMS 458 Carbon is the isotope most generally used in laboratories When used with caution and as an experimental tool is considered nonhazardous Evidence and new data to support this conclusions are presented with a discussion of the nature of the hazard Only a small amount of radioactive carbon from inhaled carbon dioxide is stored in the tissues When barium carbonate dust is inhaled the radioactive carbon is converted quickly to carbon dioxide The Treatment of Irradiation Infection C.P. Miller Carolyn W. Hammond and Marianne Tompkins Atomic Energy Commission AECU 16 pp no date : RE RE RE RERE RE IN IN ININ IN These experiments seem to demonstrate that generalized infection played a significant role in the death of mice exposed to moderate doses of body radiation Infection was caused by bacteria belonging to the intestinal flora Treatmewn itth antibiotics reduced the mortality to a significant degree and among the antibiotics tried streptomycin was the most effective Next in order of effectiveness were chloroamphenicol aureomycin and terramycin among which there was no demonstrable difference in therapeutic value -- Nuclear Sci Absts 03119300 Industrial Hygiene Digest - 30 April 1952 459 ( The Hazard of Radiation A. Heustis and D. Van Farowe Radiology 57 832-836 Dec. 1951 119999 014 6 199 The Division of Industrial Health of the Michigan Department of Health made a study of the operation of fluoroscopic and ray installations in the eleven state mental hospitals in an effort to determine whether 199 199 personnel were being subjected to hazardous amounts of radiation results of the investigation are tabulated and fourteen factors to be The con- November sidered in eliminating such hazards in hospitals are given November -- Nuclear Sci Absts November November November November November November November November November ENVIRONMENTAL MEASUREMENTS November November NNoovveemmbbeerr November November Determination of E. Effenberger Oxidizing Z. Anal Impurities Chem 34 in the Atmosphere 106-109 1951 German The oxidizing effects of ozone nitrogen peroxide and chlorine were studied by passing the gases through buffered solutions of potassium iodide The effect of reducing the pH value of the potassium iodide solution was studied The increase in oxidizing power was particularly ABRAMS noticeable with nitrogen peroxide On the basis of the different oxidizing ABRAMS ABRAMS ABRAMS effects it was possible to work out a simple method of determining each gas but when three of the gases are present it is necessary to set up three simultaneous equations after working at three different pH values ABRAMS ABRAMS -- Chem Absts Determination of Carbon Monoxide in Air T. Kani ABRAMS ABRAMSJapan J. Pharm & Chem 23 293-298 1951 ABRAMS A method for the determination of small amounts of carbon AABBRRAAMMSS monoxide in air is described Any acid alkali organic gases might form carbon dioxide in the presence of heated hopcalite are that RE: initially removed by passage through bromine water potassium hydroxide RE solution 98 sulfuric acid or activated charcoal Purified air thus RE RE RE obtained is heated to 120 is led through a tube filled with hopcalite and , RE RE the resultant carbon dioxide is absorbed in 2 cc of 0.02 N barium RE hydroxide solution The residual barium hydroxide is titrated with 0.02 N acid and the amount of carbon monoxide in the sample is IN calculated from the amount of alkali required for neutralization One cc of 0.02 N IN barium hydroxide is equivalent to 0.224 cc carbon monoxide at standard conditions The analysis of 350 cc of sample containing 0.01 to 0.005 carbon monoxide takes about 1.5 to2 hours -- Cond from Chem Absts ~ 03119301 Industrial Hygiene Digest - 31 April 1952 198 0147 462 Bleached Fuchsin in Determination of Sulfur Dioxide in the Atmosphere P.F. Urone and W.E. Boggs Anal Chem 23 1517-1519 October 1951 Steigmann's colorimetric method for determining sulfur dioxide 1998 1998 was modified to make it better applicable to small quantities in air 1998 1998 1998 Ten liters of air are passed through 10 mls of a solution of % glycerol in 0.1 N sodium hydroxide solution in a midget fritted bubbler at NovemberNovember November November 20 liters hour An aliquot of the solution is mixed with the indicator solution containing basic fuchsin sulfuric acid and formaldehyde After 30 minutes the extinction of the solution is read in a colorimeter or NovemberNovember November November November spectrophotometer at a wave length of 580 millimicrons and compared with a standard curve Interfering substances are eliminated by precipitation with mercuric chloride Concentrations of 0.01 ppm may be determined by this method 463 November ABRAMSABRAMS ABRAMSABRAMS ABRAMS ABRAMS ABRAMS 464 ABRAMS ABRAMS ABRAMSABRAMS The Determination of Small Amounts of Tetranitromethane in Air V.B. Vouk and O.A. Weber Brit J. Ind Med 9 32-38 Jan. 1952 A study of methods of determining tetranitromethane showed that the Sievers reaction with some modifications may serve as an excellent method for small quantities in air Essentially the method consists of collecting the vapor in ethanol adjusting the pH to 6 by addition of pyridine adding benzidine solution makinugp to volume and reading with a spectrophotometeart a wave length of 400 millimicrons Tetra- nitromethane can be determined in amounts of 2 micrograms per ml with a probable error of not more than 1.3 if the procedure is followed closely Industrial Atmosphere III Determination of Phenol in the Atmosphere of Factories Producing Phenolformaldehyde Resins J. Roubal and Zdrazil Pracovni Lekarstvi 3 148 June 1951 In Czechoslovakian A method for the polarographic determination of phenol in air is described The method is being applied for the determination of phenol in the air of press rooms where bakelite is being processed and for the determination of phenol contamination of the air in the process of pressing motor linings The results of these analyses are given -- Arch Ind Hyg & Occ Med 465 Electric Analysis of Aerosols M. Pauthenier and R. Challande Compt Rend 231 114-115 July 1950 French Aerosol is made to flow through an electric field essentially constant throughout the annular space between a wire and a cylinder The potential difference between the two causes a glow discharge Particles transported by aerosol obtain an electric charge and are precipitated on the ps ~~ 03119302 Industrial Hygiene Digest - 32 April 1952 19 31993 0 14 8 inner cylinder wall at a rate determined by the particular size and the number of particles per unit volume of aerosol This principle is said to be used in an apparatus for studying industrial atmosphere -- Atm Poll Bull 1993 1993 1993 1993 bor bor bor PREVENTIVE ENGINEERING borbor Design of Exhaust Systems for Granite Dust F.H. <= Sheet Metal Worker 42 43-45 July 1951 43-45 43 .43 46-49 Nov. 1951 Stebbins Sept. 1951 7 Features > a A granite dust collecting system is described and illustrated include a chip trap a flanged hood an intake hood and a hood surrounding the bush hammer The construction of hoods and pipes is a Zz discussed including dampers and blast gates and a suggested design for hood supporters The selection of a separator is also discussed 467 Observation and Control of Dust in Foundry Dressing Operations I. Control of Dust R.F. Ottignon II Observation of Dust AMS Lawrie Paper 1008 to Inst Brit Foundrymen 20 pp 1951 AMS AMS The paper describes new methods of observation and control of the Fdust cloud generated during these operations It describes the application of local exhaust ventilation to the dressing of small and medium size AAMMSS castings The results indicate that increased efficiency may be attained Sby using an air jet to control the direction in which the dust cloud flows -- Atm Poll Bull 468 Artificial Fog for Improving Atmosphere in Mines EGG EGG Marcello Securitas pp 106-108 August 1950 a+ Cnt The author gives an accout of experiments recently carried out while fM eog driving a mine road in order to isolate the gases dust resulting from firing by means of an artificial fog composed of a mixture of air glycerin and water The article gives details of the appliance used and on the shifting of the fog screen during different phases of work The experiments are being continued in Italy to perfect the system and to extend its application -- Atm Poll Bull 03119303 Industrial Hygiene Digest - 33 April 1952 1992 0149 469 1992 1992 1992 19921992 Dust Suppression by Water Infusion in Coal Mines Working and Results W. Thomae Bergb Rundschau 3 107-112 168-172 April 1951 German Economic March The paper gives a detailed account of experience with water infusion in a Ruhr mine since 1949. The equipment is briefly described Detailed 1992 1992 evaluation of the results was difficult because of frequent changes in con- 1992 1992 1992 ditions but the average result was a 75 reduction of total dust at the coal- face and transfer points and a 55 reduction of the fine dust in the return November NovemberNovember November air -- Cond from Bull Hyg November November 470 Dry Suction Apparatus to Combat Silicosis W. Owsiany Bergb Rundschau 3 119-120 March 1951 German November The article describes and illustrates the use of this dust extractor November November November immediately which is used in pneumatic drilling is a kind of vacuum cleaner which sucks the dust produced in drilling through bores below the crown of the drill into a large container where the dust deposited The air is filtered through several layers of fabric and discharged into the work- ing room The suction is produced by compressed air injector The dust is either caught dry in a large paper bag suitable to hold about 80 feet of drill- ings or alternatively the dust may be caught in water and later discharged as sludge Changing of bags must done by specially trained personnel The normal model serves two drills simultaneously and it can be used in a horizontal position in narrow development greater use of this dust extractor is recommended -- Bull Hyg ABRAMS ABRAMS ABRAMS 471 ABRAMSABRAMS ABRAMS ABRAMS ABRAMS Dust Control by the Salt Process H. Spies Gluckauf 87 248-253 Mar. 17 1951 German In a number of German mines dust control is effected by cover- the floor walls and roof with a layer of salt about 1-1 inches thick The layer is periodically moistened by spraying Part of the salt dissolves and crystallizing out again it comes to the surface by efflorescence and con- solidates any dust that has settled out in the meantime The salt is applied to the walls and roof by spraying in two stages the first with a mixture of salt with % of lime The process has been found very successful over a number of years It is claimed to give protection against explosion fire and silicosis hazard Stone dusting may be unnecessary the salt process is and experiments used to test this possibility are under way -- Cond from Bull Hyg COMMUNITY AIR HYGIENE 472 Pollution Control Chemical Engineering Report Chem Eng 58 111-158 May 1951 A group of papers reviewing various phases of water and air pollution is presented The section on air pollution includes the following subjects waste products causing air pollution by L Silverman 03119304 Industrial Hygiene Digest - 34 April 1952 C66I 0 14 58 effect of weather conditions and topography by M. Sittenfield filters by W. Vedder types of collectors by C.E. Lapple electrical precipitators C66Iby W. Sproull sonic agglomeration by G. Kiddoo and odor removal by A. Bownes C66I C66I JO MANAGEMENT ASPECTS JO a); The 473 Importance of Human Relations Research for Industrial Productivity R. Kahn Manufacturing Management Series No. 200 pp 15-28 1952 American Management Assn 300 West 42nd St. New York 36 A study of the relation of the foreman's attitude and qualifications to productivity revealed that production is definitely higher when 1 the foreman appears to his men to have superior planning ability 2 the supervisor spends more time in supervision and less in production work the foreman has had supervisory training 4 the supervisor is employee rather than production 5 the foreman is helpful and understanding when his men do a poor job 6 the group takes pride in the work and 7 when there is group solidarity oa 474Hours of Work and Rest and Annual Holidays in Dangerous and Unhealthy Internat Labour Rev. 64 325 October 1951 OAMcScupations The report contains an analysis of regulations adopted by different countries as national legislation to provide more favorable conditions AAMMSS adult male workers employed in dangerous and unhealthy occupations The measures employed are discussed under the following headings The Hours of work The purpose legislation here is to reduce the time AP exposure to hazardous conditions by limiting daily and weekly working hours Overtime workis prohibited in some countries while in others AP is permitted subject to strict conditions 2 Weekly rest Its value is recognized and one free day is now given to practically all workers 2 Annual holidays Extra time is allowed and sometimes more than one one holiday a year is given The holiday may be spent in special resorts one least one country forbids giving cash compensation in lieu of the holiday R R -- Arch Ind Hyg & Occ Med R RR 475 _Practical Problems of Nurses Working Alone in Industry Louise Candland Nursing World 216 32-35 Jan. 1952 = A nurse should not accept a position in industry where she will work alone until she has had several years of varied experience under supervision and has gained experience in carrying out her own program A number of suggestions are given regarding interviews on seeking and 03119305 Industrial Hygiene Digest - 35 April 1952 1992 1992 19921992 0 14 5 entering employment duties equipment space and sources of information A number of reported faults of nurses are listed also several failings of employers in dealing with nurses including 1 low income 2 failure proper job classifications for industrial nurses and to accept the standards of nursing service recommended by industrial nursing associations 3 failure to allow time and expenses to attend professional meetings and to purchase nursing literature and 4 failure to provide adequate medical supervision NovemberNovember November November November 476 Training and Work at the Lighthouse The Association for the Blind 111 E. 59th St. 1951 Available at the above address Lighthouse of the New York New York 22 N. 22 pp November November November November November November November November This booklet describes the rehabilitation program of this organization Training in handicrafts instruction in Braille a time work center commercial training and newsstand training are features of the program A total of 414 blind persons trained at the Lighthouse and employed in industry are listed in addition to 398 employed or supervised at the Lighthouse ABRAMS ABRAMS ABRAMS ACCIDENTS AND PREVENTION ABRAMS ABRAMS ABRAMS 477 ABRAMS ABRAMS ABRAMSABRAMS ABRAMS ABRAMS ABRAMS ABRAMS : RE RE RERE RERERE 478 IN IN IN IN ININ The Human Approach to Safety in the Chemical Laboratory Workshop and Plant L. Burrage Research 5 62-66 February 1952 The author who director of a large research laboratory describes the system of training and assimilating new assistants with the aim of making them take a personal interest in the work and cooperate with others Safety instruction is an integral part of this training Work- men are interested and instructed in a similar manner " The aim of any safety organization must be the creation such a state of affairs that every man or woman is his or her own safety officer In some departments that situation has been achieved Features of the safety program include painting safety equipment green the use of attractive safety booklets and display of safety equipment with photographs of persons dressed in the equipment Warren Petroleum Corporation Propane Fire and Explosion Port Newark N. July 7 1951. Report by The National Board of Fire Underwriters 85 John St. New York 38 Y. and The Fire Insurance Rating Organiza- tion of N. 31 Clinton St. Newark 2 N. 12 pp 1951 Seventy propane storage tanks of 30,000 gallons individual water capacity were ruptured as a result of the fire and explosions at the Propane oan 03119306 Industrial Hygiene Digest - 36 April 1952 Storage Terminal of the Warren Maritime Corporation There were no deaths but three men were critically injured Two tanks were ruptured 0 14 52 and buildings damaged on adjoining property The total damage was over 76 176 1 a million dollars This report relates the story of the fire and its 776661 61 possible causes The results of the investigation brought out several points worthy of consideration for safety in future installations 77661661 They include thermal insulation of large tanks water spray systems with remote control subdivision of long transfer lines by JOQJWIOAQNWIOAQN remotely controlled shut valves staggered arrangement of tank batteries and appropriate fire walls JOQWIOAQN JOQWIOAQN MISCELLANEOUS JOQWIOAQN JOQWIOAQNJOQWIOAQN ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMSABRAMS ABRAMS ABRAMS ABRAMS Leptospirosis in England and Wales Brit Med J. 2 689-697 Sept. 22 J.C. Broom 1951 Leptospirosis or Weil's disease is a parasitic infection to which agricultural sewerage and mine workers are exposed A short review is given of the history and classification of the genus leptospira the distribution of different species and of the diseases they produce in different domestic animals An analysis of 465 cases calls attention to its high incidence among agricultural workers and the number of infections contracted while bathing The incidence among miners has been reduced by improved hygiene and other causes The investigation included 54 cases of canicola fever a similar disease and the differences between the two are discussed Improvement of methods of diagnosis are considered The use of penicillin is ineffective Preventive methods are discussed ABRAMS Leptospiral Meningitis Report of a Case Resembling Swineherd's Disease Due to Leptospira Pomona in the United States B. Krouse and M. Sigel Ind Med & Surg 21 121-123 March 1952 RERE RE A case of meningitis in handler of diseased swine carcasses is presented L. pomona was the most likely etiologic agent of this meningitis as evidenced by a rise in agglutination titer against this organism In view of the previously unsuspected incidence of leptospiral infections due to Leptospira icterohemorrhagiae and canicola attention is called to this additional species as a cause of infection in this country Leptospira pomona must be considered in the differential diagnosis of aseptic meningitis particularly when the occupational history suggests close contact with animals such as horses cattle swine or their products -- Authors Summary - 03119307 Industrial Hygiene Digest - 37 April 1952 INDEX 1999 1999 November November November November November Aerosols electric analysis Air pollution control Aniline poisoning Anthracosilicosis review tomography Asbestosis experimental Atomic energy laboratory employee orientation Barium sulfate dust effect 465 472 408 381 436 376 439 Ear lesions from acoustic trauma Exhaust systems for granite dust Grease fiber factory Hazards Hearing loss estimation Herbicides poisoning Hours of work and rest Human relations research 81453445 466 379 443 412 474 NovemberNovember November Benzene hexachloride tissue distribution Benzene poisoning and leukemiapoisoning Bladder cancer cause 413 403 410 and productivity Hydroquinone eye effects Industrial physicians graduate education Insecticides 473 404 375 Blind rehabilitation Carbon 476 toxicity exposure and cholinesterase levels 420 414 November November ABRAMS ABRAMSABRAMS ABRAMS hazard Carbon disulfide poisoning experimental Carbon monoxide determination in air Carbon tetrachloride distribution in body 457 402 461 399 rodenticides and fumigants table carbamate carcinogenic studies Lead excretion effect of citrates Lead poisoning 421 409 394 Chromium dermatitis Cold injury and hypoxia Condensation plastics Deafness 386 451 387 and optic atrophy porphyrin tests Leptospiral meningitis 7 Leptospirosis Leukoderma 392 393 480 479 ABRAMS ABRAMS ABRAMS legal aspects Dermatitis from printing materials Dermatoses 448 385 from rubber Lung carcinoma in nickel workers Methanol 388 395 industrial toxic hazard 398 legal aspects recurring compensation Dieldrin toxicology Dust collector 383 384 411 Methyl bromide poisoning cases Mine air purification Nerve casualties Noise environmental study control 400 468 391 442 450 suction control salt determination and control in foundries suppression by water infusion 470 471 467 469 problems clinical aspects in industry reduction _ safety criteria Nurses practical problems 446 449 447 444 475 0311930031189308 Industrial Hygiene Digest - 38 April 1952 Ophthalmology Silicotuberculosis ' industrial Orthophenylphenol Oxidizing Coxicology Oxidizing gases 377 405 streptomycin treatment Silver dust exposure Skin cancer 435 396 0145 determination in air 460 of hand and forearm 380 OxygenOxygen Tatal pressure effect Rarathion and homologue toxicity ghazards ghazards in air dusting Polyneuritis Polyneuritis Pesticides Toxicology Phenol determination in air Preumoconiosis in agate grinders penetration penetration of dust particles irradiation infection treatment 424 416 415 418 422 464 428 434 458 Sound measurement Sulfur dioxide determination in the atmosphere Sulfur dioxide hazards Talc pneumoconiosis Tetranitromethane determination determination in air Tetryl toxicity T.N.T. poisoning in tunnel worker 441 462 390 437 463 407 406 Propane fire and explosion Pseudoasbestosis bodies 478 438 Toxic chemicals in agriculture 419 Radiation monitoring permissible dosage Radium dial painting _ safe practice 455 454 453 Trichloroethylene toxicology . Tricresylphosphate in plastics toxicity 401 417 Radiation hazards Tuberculosis Yin New York Rhinitis Allergic Safety 452 423 477 and anthracosilicosis in miners Vanadium poisoning from boiler cleaning Varicose veins 426 397 389 in industry Vision tests 382 3 amorphous effects SificosisSificosis acute in alpine tunnels and bone marrow from melting bauxite of sandstone cutters 433 427 431 429 425 for small plants ray exposures of patients in hospitals Zircon ray shadows 378 456 459 440 Broblem RREE cor pulmonale RE 430 432 IN 03119309 NYB-@8145 | Review Confidentiality Confidentiality 300 N9 | fae i * J 0