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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 KW8-014 1993 1993 1993 1993 1993 1993 1993 1993 November November November NNovoembverember Industrial Hygiene Digest November November November November November INDUSTRIAL HEALTH NEWS November LITERATURE ABSTRACTS MEDICAL ENGINEERING ABRAMSABRAMS ABRAMS ABRAMS CHEMICAL TOXICOLOGICAL LEGAL ... decisions and trends ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS RE RE RE RE RE IN APRIL 1952 Vol 16 No. 4 INDUSTRIAL HYGIENE FOUNDATION MELLON INSTITUTE 4400 FIFTH AVENUE : 13 PA PITTSBURGH PLAINTIFF'S exhibtsicker.com exhibitsticker.com exhibitsticker.com EXHIBIT exhibtsicker.com exhibitsticker.com exhibitsticker.com exhibitsticker.com exhibitsticker.com exhibitsticker.com 03119268 1 3~fi PLAINTIFF'S EXHIBIT gh a > " a iS at! tt F ! ae Oe INDUSTRIAL HYGIENE INDUSTRIAL HYGIENE YOUKCATION aYs OUKCATION YOUKCATION Volume 14 BOT BOT April 1952 to industrial concerns holding membership in Industrial Hygiene Foundation The Foundation is a nonprofit association of industries for the MW8-014 5 advancement of healthful working conditions , No. 4 NEW ADDITIONS TO FOUNDATION MEMBERSHIP 25 The following companies have Copperweld Copperweld Steel Co. Chromium Mining & Smelting Corp. Diamond Alkali Co. nm HQ) Ltd. recently affiliated with the Foundation Fostoria Glass Company Mathieson Chemical Corp. Pabst Brewing Company 7 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 by Industrial Relations Counselors Inc. of New York which is being held the San Marcos Hotel Chandler Arizona April 7 to 17. 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 UMIUMI FOUNDATION ACQUIRES ADDITIONAL SPACE Ly Mellon Institute has made available to the Foundation additional space [oa 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 needed to provide for the expanding program of work and increased personnel INDUSTRIAL HEALTH CONFERENCE Q) oO The Industrial Hygiene Foundation will be well represented at FP52 FP52 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 NI NI NI REPRINTS AVAILABLE NI Reprints are available.upon 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 April H INDUSTRIAL HYGIENE FOUNDATION 4400 FIFTH AVENUE PITTSBURGH 19 PA 03119270 Industrial Hygiene Digest 1992 1992 19 219 2 1992 November November November November November November November NovemberNovember November November November November' November ABRAMS ABRAMS : RRE E RE RERREE RE TABLE OF CONTENTS News Items 0... Page ce eee teen Occupational Disease Statistics . 2 Legal Developments ieeaseesecuas 3 Industrial Medical Practice 5 Skin Diseases and Burns y Chemical Hazards . 0. eee cece ence 9 Industrial Dusts eee ere enee r see 20 Physical Aspects of the Environment 24 Radioactivity and Radiation o8 28 Environmental 06 Measurements ~ 30 Preventive Engineering eaeeee cases 32 Community Air Hygiene seseee 33 Management Aspects ccc cece eee e ee eees 34 Accidents and Prevention 35 Miscellaneous .. sececeeees 36 Index a aaa 37 April 1952 0014416 0146 03119271 April 1952 Volume XVI No. 4 EG TEGGT EGGT EGGT EGGEGTGT EGGT AOQUIOAON AOQUIOAON Industrial Hygiene Foundation 4400 Fifth Avenue Pittsburgh 13 Pennsylvania INDUSTRIAL HYGIENE DIGEST Literature and News 08147 NEWS ITEMS AOQUIOAON AOQUIOAON AOQUIOAON AOQUIOAON 365 AOQUIOAONAOQUIOAON AOQUIOAON AOQUIOAON Industrial Toxicology Laboratory 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 ABRAMBABRAMB ABRAMB ABRAMB 67 67 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 RE RE RE RE RE 368 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 1999 1999 199919 9 1999 November November November November November November NovemberNovember 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 November 370 November Dermatitis 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. Y. Supreme Court Appellate Div Third Dept. , January 9 CCH 371 Longshoremen's and Harbor Workers Compensation Dermatitis Recurrence of Previously Compensated Injury Defined 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 os Industrial Hygiene Digest - 4 April 1952 MWB8-0142 372 Silicosis-- v Independent Contractor of Work 1992 1992 The claimant was an underground miner for 25 years prior to his disablement from silicosis in 1950. In 1946 while working for another 1992 mine he signed a contract with the defendant company to inspect its mine 1992 1992 1992 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 November the paying of all bills in connection with the labor and obtain waivers of November November November November November November 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 workedina raise which was November November November 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 November November November November November 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 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 employer relationship Award affirmed Commission of ABRAMS ABRAMS Finance of Utah v Industrial Commission of Utah No. 7726 January 4 1952 Utah Supreme Court -- CCH ABRAMS ABRAMS Silicosis Cutter Three Limitation to Contraction of Disease Construed as ABRAMS ABRAMS ABRAMSABRAMS : INRE INRE INRE INRE INREINRE INRE INRE 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 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 1993 0142 INDUSTRIAL MEDICAL PRACTICE 1993 375 NovemberNovembr November November November November November November Graduate Education for Physicians in Industrial Health and Occupational Medicine A Report of Current Graduate Education in Nine Universities T. 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 376 Orientation of the New Employee by the Health Division of an Atomic Energy Research Laboratory Four Review Ind Med & Surg 21 107-110 March 1952 J.S. Felton ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAAMSBRAMS ABRAMS ABRAMS ABRAMS ABRAMS 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 as 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 : : RE RE RE 377 RE IN INININ 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 tests of 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 cime Vio yeh 03119276 Industrial Hygiene Digest - 6 April 1952 0014422 0014422 0014422 necessity Visual standards should be set for the various tasks and 0014422 employees should be assigned only to tasks consistent with their visual 0014422 866T 866T abilities All employees subject to eye hazards should be required to MWBB wear safety goggles but uncomfortable glasses will not be worn Lecture MWBB 866T MWBB sessions and posters will aid greatly in employee education The expense 866T of such a program will be justified by general improvement in employee 866T performance -- Cond from Arch Ind Hyg & Occ Med 378 Novembe 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 379 Examination of Workers and Working Conditions in a Glass Fiber Factory J. Jindrichiva V. Jensi M. Sabatova and M. Pantucek Pracovni Lekarstvi 3 135 June 1951 Czechoslovakian : ABRAM ABRAM ABRAM ABRAM ABRAM ABRAM ABRAM ABRAM ABRAM 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 RE RE IN ININ Skin Cancer of the Hand and Forearm A. Gourevitch Brit J. Ind Med 9 C.N. Cruickshank and 74-79 January 1952 investigation patients epithelioma An investigation of the patients treated for epithelioma of the hand and forearm at the United Birmingham Hospitals during the period 1941- 1950 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 are 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 agents 0311927 Industrial Hygiene Digest - 7 April 1952 01423 381 1993 Tomography in Anthracosilicosis D. Belayew Arch Belges Med Sociale et Hyg 9 197-199 June 1951 In French 1993 1993 1993 1993 1993 The value of tomography was tested with 200 Belgian coal miners MWB 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 frequently brought to light Tomography opens up an unexplored field regarding the bronchial tree revealing thickness in the walls of the November November November November November November 382 November branches or narrowing or unobserved enlargement which would otherwise pass -- Cond from Bull Hyg The Association of H.O. McPheeters Varicose Veins with Industry Wisc Med J. 50 997 October 1951 Complications that may develop from or that are associated with November 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 ABRAMS -- Cond from Arch Ind Hyg & Occ Med ABRAMS ABRAMS ABRAMS SKIN DISEASES AND BURNS ABRAMS ABRAMS ABRAMS ABRAMS 383 Industrial Dermatoses and the Law Suggestions for Improvement E. Traub and D. Schultheis Jr. New York J. Med 51 2005 ABRAMS September 1 1951 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 0142 384 1993 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 1993 in 1944 was exposed to chemicals used in electroplating Apparently the 19931993 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 November November November months after the dermatitis first appeared Since that time she has been under the care of dermatologists and general practitioners for varying intervals Treatment has included roentgen therapy The dermatosis November 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 November 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 NovemberNovember November November skin lesion was acquired be liable for later doctor hospital and medicine bills ? -- Arch Ind Hyg & Occ Med Printing Materials and Contact Dermatitis Queries and Minor Notes J. Am Med Assn 148 782 March 1 1952 The question A patient has contact dermatitis on the volar surface of the forearms He handles hot lead in printing shop He is MS 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 AN type and presses Patch tests may be performed with the metallic sub- ABI stances or with the inks but not with the solvents Chromium Dermatitis Queries and Minor Notes J. Am Med Assn 148 877 March 8 1952 RE RE RE 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 1992 1992 19919292 MWB8-01425 1992 1992 Condensation Plastics Their Dermatological and Chemical Aspects E. Morris Arch Ind Hyg & Occ Med 5 37-43 Jan. 1952 Dermatitis caused in the manufacture of plastics comprises about % of the practice of the industrial dermatologist The completely 1992 1992 1992 polymerized finished plastics are dermatologically inert The physician should be acquainted with the chemicals that the worker handles The chemistry of the condensation plastics is presented --Author's Summary November November 388 Occupational Leukodermia from Rubber Dust and Debris J. Zakon and A.L. Goldberg Arch Dermatol Syphilol 64 441-443 July 1951 NovemberNovember November November 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 CHEMICAL HAZARDS ABRAMS ABRAMS 389 ABRAMS RE RE RE 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 IN IN 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 Erdol u Kohle 4 569 579 1951 German 3661 3661 Tolerance to sulfur dioxide is high 0.1 to 0.12 mg per Per- 0 14 26 sons that are hypersensitive should not be permitted to work in its presence Animal experiments gave the following results quickly pro- 36 1 ducing death 3-5 mg per .; later death 1.4-1.7 mg per 1. for 1/2 to 3661 36613661 one hour 0.4-0.5 mg per 1. probably fatal 0.17-0.64 mg per 1 JOQUIJOAOONQUIOAON JOQUIOAON JOQUIOAOJNOQUIOAON tolerated An accident in a sulfite cellulose factory is mentioned -- Chem Absts JOQUIOAONJOQUIOAON JOQUIOAON JJOOQUQIOUAOIN OAON 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 JOQUIOAON JOQUIOAON ABRAMS ABRAMS 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 A Case of Optic Atrophy due to Delayed Lead Poisoning C. Soprana Med Lavoro 42 187-191 May 1951 In Italian ABRAMSABRAMS ABRAMS ABRAMS ABRAMS : RERE RE RE 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 Langen 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 BCCI BC IBCCI BCCI BCCI BCCI BCCI BCCI JOQULJOAOONQULOAON JOQULOAON JOQULOAON values and positive results were checked by quantitative determinations MW8-01427 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 the described rapid method is particularly suitable for serial examinations of lead workers -- Cond from Arch Ind Hyg & Occ Med JOQULOAON JOQULOAON 394 Effect of Sodium and Zirconium Citrates on Distribution and Excretion of Injected Radiolead J. Schubert and Marcia R. White J. Lab Clin Med 39 260-266 February 1952 JOQULOAON JOQULOAON The results described in this paper indicate that the citrate ion has little or no effect on the immediate blood disappearance organ distribution or excretion of lead in rats However in refs injected with carrier amounts of lead labeled with radio lead P--- zirconium citrate caused over a threefold increase in the radiolead excreted during the first 24 hours and a decrease in the kidney concentration 395 Lung Carcinoma in Nickel Workers A.C. L^,ken Laegefor No. 11 375 1950 In Norwegian Tidsskr Norske ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMSABRAMS 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 :: : RERE RE RE Exposure to Silver Dust J. Am Med Assn 148 Queries and Minor Notes 781 March 1 1952 Some employees in 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 801428 397 C661 C661 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 C661 C661 C661 C661 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 JOqQWOLON JOqQWOLON The principal symptoms were severe coughing fatigue and a greenish JOqQWOLON JOqQWOLON JOqQWOLON JOqQWOLON JOqQWOLON 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 dis- JOqQWOLON mantling brick walls and the use of respirators JOqQWOLON A Study of the Conditions Under Which Hazard in Industry G. Leaf and L.J. 19-31 January 1952 Methanol Zatman May Brit Exert a J. Ind Toxic Med 9 JOqQWOLON 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 ABRAMS ABRAMSABRAMS to be approximately proportional to concentration and duration of exposure . The rate of elimination is proportional to the concentration in the body ABRAMS ABRAMS ABRAMS ABRAMSABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS : RE RE RE RE RE RERE RE IN 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 1992 19 2 400 NovemberNovember November November November November November NovemberNovember November 401 November ABRAMS ABRAMS ABRAMS 402 402 ABRAMS : RERE RE RERE IN 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 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. Truhaut Ind Med 9 39-43 February 1952 French 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 i.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 from Arch Ind Hyg & Occ Med ok : > OO Cia eee em eS 03119284 Industrial Hygiene Digest - 14 April 1952 19921992 01438 403 1992 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 1992 The man had worked for six years in an atmosphere containing considerable amounts of benzene fumes symptoms did not appear until two years later 1992 1992 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 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 November November November 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 -- Cond from Bull Hyg November November ABRAMS ABRAMS 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 Toxicological Studies of Orthophenylphenol Dowicide F 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 ABRAMS RE : RE RE RE RE RE Orthophenylphenol has a low acute oral toxicity for male rats the LD50 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 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 T. 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 0143 407 CE6I CE6I CE6I CE6I Tetryl Toxicity A Summary of Ten Years Experience B. Bergman Arch Ind Hyg & Occ Med 5 10-20 Jan. 1952 The history the properties and the manufacture of tetryl are CE6I CE6I 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 CE6I CE6I tetryl was encountered The most troublesome reaction was the skin- JOQUIOAON 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 recognizing psychoneurosis in tetryl workers is noted No neurological hematopoietic or cardiovascular symptoms were observed The hygenic JOQUIOAON problems associated with tetryl handling are reviewed and the importance of examining workers before work and limiting exposure is stressed JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON -- Author's Summary 408 JOQUIOAN ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMABSRAMS 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 methemoglobine 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 methemoglo- methemoglobinemia but to the abundance of Heinz bodies --Arch Ind Hyg & Occ Med : 0409 0409 0409 RERE RE RE RE RE 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 Industrial Hygiene Digest 16 April 1952 410 1992 1992 1992 An Experimental Inquiry into the Cause of Industrial Bladder Cancer M. Bonser D.B. Clayson and J.W. Jull Lancet 261 286-288 August 18 1951 01432 1992 92 1992 naphthol conjugates have been identified in the urine of dogs and other species after the administration of purified naphthylamine 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 mbor mbor mbor mbor and the incidence of bladder tumors in different species provides a possible explanation of the observed differing species susceptibilities amino naphthol hydrochloride tested for local action on the bladder epithelium of mbor mbor mbor Drea 1 BY 'G the mouse has been found to be a carcinogen of the same order of potency as methylcholanthrene -- Authors Summary The Toxicology of Dieldrin and Its Bearing on Field Use of the Compound W. Hayes Jr. F.F. Ferguson and J.S. Cass Am J. Tropical Med AONI 31 519-522 1951 Judging from experiments on nine species of laboratory animals skin contamination of man with concentrates of the insecticide dieldrin AONI 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 il ee vite show lesions sufficient to cause death No injury has been found in workmen on limited operational programs It appears dieldrin can be used safely as an outside residual spray only by appropriately trained personnel -- Cond from Biol Absts ABR ABR ABR ABR RREREE Selective Herbicides and Growth Substances Pathologic Effects on During the Manufacture of the Ester of 2,4 Profess 12 26-30 1951 French M. Assouly Arch Man Mal 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 Te Tissue Distribution Accumulation and Elimination of the Isomers of Benzene Hexachloride B. Davidow and 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 0 14 3 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 414 Blood Cholinesterase Levels in Workers Exposed to Phosphorus Insecticides J.M. Barnes and D.R. Davies Brit Med J. 2 816-819 1992 October 6 1951 November November NovemberNovemberNovember November 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 November November 415 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 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 416 ABRAMABSRAMS : RE RE RE RE RE RE RE RERE 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 a % y rn FR aan | west Fe 03119288 . Industrial Hygiene Digest - 18 April 1952 MW8-0143 417 1992 1992 Tricresylphosphate in Soft Igelit W. Borgmann and G.A. 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 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 used for the manufacture of articles which may come in contact with the skin -- Cond from Bull Hyg - November November November Polyneuritis due to Parathion Arbeitsschutz 1 86-89 July H. Petry Zent Arbeitsmed 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 ABRAM ABRAM ABRAM ABRAM ABRAM ABRAM ABRAM ABRAM 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 M. is given in Arch Ind Hyg & Occ Med 5 174-176 February 1952 RE RE RE RE IN II NIN N Relative Toxicity of Insecticides W. Simmons and W.J. Hayes Jr. Soap & Sanit Chem 27 148-150 Dec. 1951 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 0 14 35 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. , 1952 1992 1992 1992 1992 November November November 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 November November November November 422 November November November ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS 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 423 ABRAMS ABRAMS : RE RE RE RE IN IN 424 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 1993 8014 36 and carbon dioxide exhalation resulted the body temperature rose approximately 0.5 degree the blood carbon dioxide sugar and pressure 1993 remained unchanged while the pH fell from 7.564 to 7.491 Normal brain liver and kidney tissue had a strong reducing action as evidenced by reduction of indigodisulfonic acid to the leuco base in less than 0.5 hour Tissues of animals under oxygen pressure lost their reducing power The 1993 data point to functional brain damage as the cause of Chem Absts NoveNmboervember November November 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 ABRAMSABRAMS 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 complica- tion 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 -- Cond from Bull Hyg ABRAMS ABRAMS ABRAMS ABRAMS Tuberculosis and Tuberculosis Among Belgian Coal Miners V. vanMechelen Institute Hygiene des Mines Hasselt Belgium Communication No. 84 7 pp July 15 1951 French RERE RE RE RE IN 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 MWB8-01437 427 1992 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 1992 who developed silicosis after comparatively short periods of exposure to 19921992 1992 1992 dust while employed in tunnels the Alps The periods of exposure 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 November November November 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 Pneumoconiosis in Agate Grinders H. Schramm Zentr Arbeitsmed Arbeitsschutz 1 105 Sept. 1951 German NovemberNovember November 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 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 ABRAMS ABRAMS ABRAMS 429 ABRAMS 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 is suggested -- Chem Absts 430 ABRAMS ABRAMS : : RE RE RE 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. The Bone Marrow in Silicosis 431. G. Saita and C. DiNaro Med Lavoro 42 IN 201-210 June 1951 Italian with English Summary ININ 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 432 The Cardiovascular Reactions of Silicosis and Anthracosilicosis A Con- 01438 199199 tribution to the Study of Cor Pulmonale Hygiene des Mines Hasselt Belgium mimeographed 1951 In French F. Lavenne Institute Communication No. 83 11 pp 199 199 Oumber Oumber Oumber Oumber Cor pulmonale is a frequent complication of silicosis and anthracosilicosis especially of the massive conglomerate type Among the coal miners of South Wales with anthracosilicosis 23.7 died of right 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 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 (DN 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 5 rang ( Animals were given repeated subcutaneous injections of quartz 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 ABR visible after six months and very well developed after three years Fat ABR ABR accumulates during the necrotic and early fibrotic stages but little fat is seen in the late fibrotic stage ABR When colloidal ABR ABRbut 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 ad cysts contain 4.4 silica 92 protein and water 3.5 lipoids and fats w unRl I 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 the 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 IN 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 434 CEBI CEBI CEBI CEBI 01439 CEBI CEBI CEBI 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 CEBI CEBI stream and in the liquid on the surfaces and in the interstices of alveolar CEBI CEBI tissue and not primarily by phagocytes IHF Absts 77 78 Jan. 1952 JOqWOAON JOqWOAON JOqWOAON JOqWOAON 435 435 435 Streptomycin Treatment in Silicosis with Tuberculosis F. Lang Mtt der Med Abt der Suva No. 27 pp Jan. 1951 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 ABRAMS ABRAMS ABRAMS ABRAMS 437 ABRAAMBRSAMS ABRAMS ABRAMS RE 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 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 a p Pn . e ss t 03119294 Industrial Hygiene Digest - 24 April 1952 014 0 438 1992 Pseudoasbestosis Bodies Called Carborundum and Graphite Bodies A. Glauser and J.R Ruttner Experientia 7 275-276 1951 German 1992 Curious bodies pseudoasbestosis bodies caused by the presence 1992 of the cubic modification of carborundum and of graphite in the lungs of 1992 pencil factory worker are described The substance surrounding the 1992 minerals showed the same physical and chemical qualitites are 1992 reported in case of asbestosis bodies --Authors Summary in Biol Absts Qa 439 xv! b b Fa IOAON 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 IOAON IOAON The Experimental Production of Radiographic Shadows by the Inhalation ofIndustrial Dusts T.A. Lloyd Davies Part II Zircon ZrSi0 H. E. Harding and Brit J. Ind Med 9 70-73 January 1952 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 ABRAMABRSAMS PHYSICAL ASPECTS OF THE ENVIRONMENT ; RI Sound and Its Measurement RI Hyg & Occ Med 5 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 The principles of sound measurement are discussed 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 1998 1998 442 1998 1998 NovNemobevr ember November NovemberNovember November November to cover the audible recorder and their noise are discussed range The accessories briefly sound meter the analyzer and are described Methods of reducing MW8-014 Industrial Plant Environmental Study C.R. Williams Arch Ind Hyg & Occ Med 5 108-112 February 1952 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 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 Estimating Percentage Loss of Hearing H.A. Carter Arch Ind Hyg & Occ Med 5 113-116 Feb. 1952 ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS 444 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 Noise Safety Criteria K. Kryter Arch Ind Hyg Occ Med 5 117-120 Feb., 1952 RE RE RE ININ IN Three criteria for noise safety are necessary 1 for voice communications 2 for deafness and 3 for mnauditory 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 except.possible ear damage when the worker is adapted to the noise 03119296 Industrial Hygiene Digest - 26 April 1952 014 2 445 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 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 are irreversible November November Clinical Aspects of the Problems of Noise in Industry Arch Ind Hyg & Occ Med 5 124-128 February H. House 1952 November November November November The diagnosis of early acoustic trauma is not difficult Audiometric tests will reveal a characteristic dip in 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 November establish an accurate diagnosis but much more important to detect acoustic trauma at the earliest possible moment in order that protective measures may be instituted -- Author's Summary 447447 447 Noise Arch and Noise Reduction Control Methods Applied Ind Hyg& Occ Med 5 129-137 February W.D. 1952 Boynton BRAM The author discusses the fundamentals of noise measurement and BRAM effects and describes the methods of noise reduction used in a particular BRAMfactory Installation of absorbing materials only restricted the spreading of noise Enclosing the machines made access difficult BRAMBRAMBRAM Analysis of noise from parts of the machines located local sources and BRAM BRAM in many cases substitution of less noisy parts was found practicable BRAM ; The Legal Aspects of Occupational Deafness N.S. Symons ~ Arch Ind Hyg & Occ Med 5 138-156 February 1952 RERE The author presents a number of compensation cases in which REREdeafness was involved coming under the jurisdiction of the New York RREERE State law RE They illustrate a number of problems involving inconsistencies RE of of the law and difficulties in assessing disability The author maintains IN that the intent of law is to provide compensation only where there is IN disability in spite of court decisions to the contrary Several unanswered legal problems are presented We should seek a solution 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 449 1993 1993 1993 The Noise Problem in Industry H.T. Walworth Quart 13 17-22 March 1952 also Tenn Ind January 1952 Am Ind Hyg Assn Hyg News 9 1-7 1993 0 14 3 The author calls attention to a number of problems to be solved 1993 in order to evaluate the physiological effect of noise He shows that in 1993 the broadest meaning of industrial hygiene the measurement and control of noise is one of its proper functions Before permissible noise levels NNovemberovember November November November NovembeNrovember are established the factors of frequency and individual susceptibility are 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 basic methods of noise control 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 November November 450 ABRAMSABRAMSABRAMS ABRAMS 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 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 ABRAMSABRAMS ABRAMSABRAMS ABRAMS RERE RE RE RE RE RE Influence of General Hypoxia on Local Cold Injury J. Pichotka R. Lewis and U.C. Luft Texas Rep Biol & Med 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 Code ts wt n 03119298 Industrial Hygiene Digest - 28 April 1952 3 Cory oan RADIOACTIVITY AND RADIATION NHB8-014 hcya) p 4 | : Industrial Radiation Hazards in New York State May R. Mayers Monthly Rev. N. State Dept. Labor 31 , 11-12 Feb. 1952 industries In addition to radium dial painting operations there are several industries in New York State which involve exposure to radiation and which will be investigated by the Division of Industrial Hygiene They include the use of the ray and fluoroscope in inspection of spark plugs and inspection of plastic moldings fluoroscopes in shoe stores and the radioactive static usissi) eeliminator Each of these applications is briefly described 453 453 Recommended Safe Practice for Radium Dial Painting Plants Anon Monthly Rev. N. State Dept. Labor 31 5-8 -Mar 1952 N N The recommendations outlined in some detail represent a 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 ventilation lighting personal hygiene medical supervision and safety standards Pe45r4missible Dosage and Considerations of Calculated Risk C.F. Behrens EU S. Atomic Energy Commission 3546 21 pp July 2 1951 nA) Pathological hematological and genetic effects of radiation are reviewed Permissible limits are discussed from the standpoint of cucumulamtive ulative 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- tatoimicon 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 radiationradiation exposures is included -- Nuclear Sci Absts 03119299 Industrial Hygiene Digest - 29 April 1952 455 The Use of Small Protection Films for the Estimation of the Doses 19933 19933 014 5 19933 193 Received 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 19933 ray film packs is described The initial results are also published -- Authors Summary November November November November November November November 456 Dosages Received by Patients During Ray Diagnostic Examinations F. Wachsmann Fortschr Gebiete Rontgenstrahlen 75 728-733 December 1951 German 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 ABRAMSABRAMS 458 ABRAMS Carbon is the isotope most generally used in laboratories When used with caution and as an experimental tool it 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 RERE RE RE RE RE RE IN 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 Treatment with 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 COBI 0146 459 COBI COBI COBI The Hazard of Radiation A. Heustis and D. Van Farowe Radiology 57 832-836 Dec. 1951 The Division of Industrial Health of the Michigan Department of COBI CCOOBBII COBI COBI Health made a study of the operation of fluoroscopic and ray installations in the eleven state mental hospitals in an effort to determine whether personnel were being subjected to hazardous amounts of radiation The results of the investigation are tabulated and fourteen factors to be con- JOQUIOAON sidered in eliminating such hazards in hospitals are given -- Nuclear Sci Absts JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON JOQUIOAON ENVIRONMENTAL MEASUREMENTS JOQUIOAON JOQUIOAON Determination of Oxidizing Impurities in the Atmosphere JOQUIOAON E. Effenberger Z. Anal Chem 34 106-109 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 noticeable with nitrogen peroxide On the basis of the different oxidizing ABRAMS effects it was possible to work out a simple method of determining each ABRAMS gas but when three of the gases are present it is necessary to set up three ABRAMS ABRAMS simultaneous equations after working at three different pH values ABRAMS ABRAMS -- Chem Absts ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS ABRAMS Determination of Carbon Monoxide in Air T. Kani Japan J. & Pharm Chem 23 293 2981951 A method for the determination of small amounts of carbon monoxide in air is described Any acid alkali organic gases might form carbon dioxide in the presence of heated hopcalite are that REREPC initially removed by passage through bromine water potassium hydroxide RE solution 98 sulfuric acid or activated charcoal Purified air thus obtained is heated to 120 is led through a tube filled with hopcalite and REE the resultant carbon dioxide is absorbed in 2 cc of 0.02 N barium hydroxide solution The residual barium hydroxide is titrated with 0.02 N oxalic acid and the amount of carbon monoxide in the sample is 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 to 2 hours -- Cond from Chem Absts 03119301 Industrial Hygiene Digest - 31 April 1952 1992 19 2 1992 1992 462 Bleached Fuchsin in Determination of Sulfur Dioxide in the Atmosphere P.F. October 1951 Urone and W.E. Boggs Anal Chem 23 1517-1519 0147 Steigmann's colorimetric method for determining sulfur dioxide 1992 was modified to make it better applicable to small quantities in air 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 November 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 spectrophotometer at a wave length of 580 millimicrons and compared with a standard curve Interfering substances are eliminated by November November precipitation with mercuric chloride be determined by this method Concentrations of 0.01 ppm may November November November November ABRAMS ABRAMS 463 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 making up 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 464 ABRAMS ABRAMS ABRAMS : : RE RE RERE RE RE 465 IN 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 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 pone 03119302 Industrial Hygiene Digest - 32 April 1952 NW8-014 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 1998 to be 1998 1998 1998 used 1998 in an apparatus for studying industrial atmosphere - Atm Poll Bull bor PREVENTIVE ENGINEERING bor borbor Design of Exhaust Systems for Granite Dust F.H. = Sheet Metal Worker 42 43-45 =! 43. 46-49 Nov. 1951 ms July 1951 43-45 wu Stebbins Sept. 1951 A granite dust collecting system is described and illustrated < Features include a chip trap a flanged hood an intake hood and a hood ')surrounding the bush hammer The construction of hoods and pipes is discussed including dampers and blast gates and a suggested design for Chood supporters The selection of a separator is also discussed 467 AMS Observation and Control of Dust in Foundry Dressing Operations I. Control of Dust R.F. Ottignon II Observation of Dust B. Lawrie Paper 1008 to Inst Brit Foundrymen 20 pp 1951 The paper describes new methods of observation and control of the dust cloud generated during these operations It describes the application local exhaust ventilation to the dressing of small and medium size AMS AMS 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 2 Artificial 468 GG Fog for ImprovingAtmosphere in Mines Marcello Securitas pp 106-108 August 1950 a ome) The author gives an accout of experiments recently carried out while driving a mine road in order to isolate the gases dust resulting ufrom firing by means of an artificial fog composed of a mixture of UNI 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 UNI its application -- Atm Poll Bull 03119303 Industrial Hygiene Digest - 33 April 1952 198 NWB8-0149 469 1998 1998 1998 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 19981998 1998 1998 in a Ruhr mine since 1949. The equipment is briefly described Detailed evaluation of the results was difficult because of frequent changes in con- 19 8 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 air -- Cond from Bull Hyg November November 470 November November November Dry Suction Apparatus to Combat Silicosis W. Owsiany Bergb Rundschau 3 119-120 March 1951 German The article describes and illustrates the use of this dust extractor which is used in pneumatic drilling is a kind of vacuum cleaner which sucks the dust produced in drilling through bores immediately below the crown of the drill into a large container where the dust is 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 A greater use of this dust extractor is recommended -- Bull Hyg . ABRAMS 471 ABRAMS ABRAMS RE RE RE RE RE RERE Dust Control by the Salt Process H. Spies Gluckau8f7 248-253 Mar. 17 1951 German In a number of German coal mines dust control is effected by cover- ing the floor walls and roof with a layer of 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 consolidates 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 if the salt process is used and experiments to test this possibility are under way an -- 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 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 0 14 50 effect of weather conditions and topography by M. Sittenfield filters by 1992 W. O. Vedder types of 199b2y W. Sproull sonic 19199292 Bownes collectors by C. Lapple electrical agglomeration by G. Kiddoo and odor precipitators removal by 1992 1992 1992 1992 1992 1992 ber ber | MANAGEMENT ASPECTS ber ber ber 473 ber The Importance of Human Relations Research for Industrial Productivity 47R3.L. Kahn Manufacturing Management Series No. 200 pp 15-28 1952 American Management Assn 300 West 42nd St. New York 36 fay vw productivity = =< A study of the relation of the foreman's attitude and qualifications to revealed that production is definitely higher when 1 the fore- man appears to his men to have superior planning ability 2 the super- visor spends more time in supervision and less in production work vviissoorr 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 474Hours of Work and Rest and Annual Holidays in Dangerous and Unhealthy Occupations AMS Internat Labour Rev. 64 325 October 1951 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 The measures employed are discussed under the following headings 1 Hours of work The purpose legislation here is to reduce the time of exposure to hazardous conditions by limiting daily and weekly working hours Overtime work is prohibited in some countries while in others it is permitted subject to strict conditions 2 Weekly rest Its value is recognized and one free day is now given to practically all workers _23 3 Annual holidays Extra time is allowed and sometimes more than oneone holiday a year is given R R R R least one country forbids The holiday may be spent in special resorts giving cash compensation in lieu of the holiday -- Arch Ind Hyg & Occ Med 475 Practical Problems of Nurses Working Alone in Industry Candland Nursing World 216 32-35 Jan. 1952 LIoNuise 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 1998 1998 19981998 1998 1998 1998 1998 1998 MWB8-0145 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 November November November November November 476 Training and Work at the Lighthouse The Lighthouse of the New York Association for the Blind 111 E. 59th St. New York 22 N. 22 pp 1951 Available at the above address This booklet describes the rehabilitation program of this organiza- tion 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 November at the Lighthouse ACCIDENTS AND PREVENTION ABRAMS ABRAMS ABRAMS 477 ABRAMS ABRAMS ABRAMSABRAMS ABRAMS 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 aim of making them take a personal interest in the work and cooperate the 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 478 IN IN Warren Petrole^"mCorporation Propane Fire and Explosion Port Newark N. July 7 1951. Report by The National Board of Fire Underwriters 85 John St. New York 38 N. 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 a 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 7661 0 14 52 and buildings damaged on adjoining property The total damage was over 76 17661 a million dollars This report relates the story of the fire and its 7661 7661 7661 possible causes The results of the investigation brought out several points worthy of consideration for safety in future installations 7661 They include thermal insulation of large tanks water spray systems with remote control subdivision of long transfer lines by JOquOAQN remotely controlled shut valves staggered arrangement of tank JOquAQN batteries and appropriate fire walls JOquOAQNJOquOAQN JOquOAQN JOquOAQNJOquOAQN MISCELLANEOUS JOquOAQN JOquOAQN JOquOAQN 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 Leptospiral Meningitis Report of a Case Resembling Swineherd's Disease Due to Leptospira Pomona in the United States T.B. Krouse and M. Sigel Ind Med & Surg 21 121-123 March 1952 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 19 9 Aerosols electric analysis Air pollution control Aniline poisoning Anthracosilicosis review 465 472 408 Ear lesions from acoustic trauma Exhaust systems for granite dust Grease fiber factory MW8-1453445 466 1999 1999 1999 NovemberNovembr November tomography Asbestosis experimental Atomic energy laboratory employee orientation Barium sulfate dust effect Benzene hexachloride 381 436 376 439 hazards Hearing loss He earing stimation Herbicides poisoning Hours of work and rest Human relations research and productivity 379 443 412 474 473 NovemberNovembr tissue distribution Benzene soning and leukemia Bladder cancer 413 403 Hydroquinone eye effects Industrial physicians graduate education 404 375 cause 410 Insecticides November November ABRAMS Blind | Tehabilitation Carbon hazard Carbon disulfide poisoning experimental Carbon monoxide determination in air Carbon tetrachloride distribution in body Chromium dermatitis Cold injury and hypoxia Condensation plastics 476 457 402 461 399 386 451 387 toxicity exposure and cholinesterase levels rodenticides and fumigants table carbamate carcinogenic studies Lead excretion efffect of citrates Lead poisoning and optic atrophy porphyrin tests Leptospiral meningitis 7 Leptospirosis 420 414 421 409 394 392 393 480 479 Deafness Leukoderma 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 RE Dieldrin RE toxicology Dust RE collector suction control salt determination and control 383 384 411 470 471 Methyl bromide poisoning cases Mine air purification Nerve casualties Noise environmental study control problems clinical aspects in industry reduction 400 468 391 442 450 446 449 447 in foundries 467 _ safety criteria 444 suppression by water infusion 469 Nurses practical problems 475 03119308 03119308 Industrial Hygiene Digest - 38 April 1952 Ophitnhdausltmroilalogy Orthophenylphenol Oxidizing foxicology Oxidizing gases Silicotuberculosis ' 377 405 streptomycin treatment Silver dust exposure Skin cancer 435 396 8145 Suetermination Suetermination in air 460 of hand and forearm 380 ygen fatal pressure effect Rasathion and homologue toxicity Chazards Chazards in air dusting Polyneuritis Pesticides 424 416 415 418 Sound measurement Sulfur dioxide determination in the atmosphere Sulfur dioxide hazards Talc 441 462 390 Toxicology Phenol etrmination eterminatioinn air Peumoconiosis Peumoconiosis 10 10 agate grinders penetration of dust particles irradiation infection treatment 422 464 428 434 458 Tetranitromethane pneumoconiosis Tetranitromethane determination in air Tetryl toxicity T.N. poisoning in tunnel worker 437 463 407 406 Propane Propane fire and explosion Pseudoasbestosis bodies Radiation monitoring permissible dosage Radium dial painting . safe practice 478 438 455 454 453 Toxic chemicals in agriculture Trichloroethylene toxicology . Tricresylphosphate in plastics toxicity 419 401 417 Radiation hazards Tuberculosis in New York Rhinitis Calergic Callergic 452 423 477 and anthracosilicosis in miners Vanadium poisoning from boiler cleaning Varicose veins 426 397 389 in industry Vision tests 382 Sificosis E amorphous effects Sificosis acute in alpine tunnels : 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 430 RE cor pulmonale 432 03119309 C) a SUNTO-GEAH > = Confidentialty . ConfidentialiCtoynfidentiality Review e