Document r6NV3eyaJxpxEvKLyEaZZaLz0

Industrial Hygiene Digest INDUSTRIAL HEALTH NEWS LITERATURE ABSTRACTS MEDICAL ENGINEERING CHEMICAL TOXICOLOGICAL LEGAL SEPTEMBER, 1965 (VoL 29, No. 9) INDUSTRIAL HYGIENE FOUNDATION mxuon XNamura 4400 TOTH AVDCOI RRSBUBOH, PA. 18213 01 132 2799 Industrial Hygiene Features Human factors in industrial medicine arc discussed in Abst. No. 836. A report on health education m industry is given in Abst. No. 83?. Information concerning the treatment of hydrofluoric acid frurns is given in Abst. No. 871. Pulmonary styrene vapor retention is considered in Abst. No. 877. Abst. No. 839 is concerned with grip A report on cancers in mice from asphalt measurements as a part of pre-place- fractions is given in Abst. No. 883. mer.t evaluation. A case study of so-called pulmonary thesaurosis from hair sprays is given Abst. No. 844 presents a study on con in Abst. No. 884. tact lenses and the railroad industry. Consult Abst. No. 894 for data on audio Abst. No. 853 studies experimental metry m industry. lung cancer m hamsters. Abst. No. 907 describes a search for See Abst. No. 857 for a description of some nitro-olefins in polluted air. experimental emphysema produced m rats by papain. The alcoholic in industry and the role of the personnel specialist is the title A report of a typical case of mesh skin of Abst. No. 925. grafting is given in Abst. No. 867. See Abst. No. 927 for a case of traumatic Abst. No. 868 investigates the carcino aneurysm of the axillary artery: a golf genic action of motor engine oil additives hazard. Fou NDA ti ON Facts A JOINT EXECUTIVE COMMITTEE.BOARD OF TRUSTEES MEETING u held m Mellon Institute on che morning of September 14. Trustees who attended participated in n IHF Medical-Management Discussional that afternoon. Distinguished authorities led discussions on sick absence, group health insurance, data processing of industrial health information, setting of TLV's, effects of carbon monoxide exposure at certain levels (steel manufacturing) and carbon monoxide research (automobile manufacturing). No proceedings or papers will be published. Sponsored by the Foundation s Medical Committee, the discussional has provided the Foundation's staff with guidance in planning future symposia and research in the interest of the membership. NURSING SERIES BULLETIN NO. 1 is enclosed with this issue of the Digest. An IHF proposal for the follow-up studies mentioned in the Bulletin has been submitted to the National Institutes of Mental Health for possible initiation in 1966. Progress will be reported later. THRESHOLD LIMIT VALUES FOR 1965 adopted by the American Conference of Governmental Industrial Hygienists at their 27th Annual Meeting in Houston. Texas on May 2.4, 196S appear in this issue of the Digest. Tentative plans for a Discussional early in 1966, will be considered bv the Chemical-Toxicological Committee at the Foundation's Annual Meeting, October 20.21. Those having suggestions or interest in this Foundation activity may wish to communicate with Dr. Joseph Treon, Atlas Chemical Industries, Inc. .Wilmington, Delaware 19899 or Dr. John Zapp, Haskell Laboratory. E.I. du Pont de' Nemours'6 Co. . Wilmington, Delaware 19898, cochairmen of the Committee. AN ENGINEERING DISCUSSIONAL is tentatively planned for early 1966. Suggestions contained in the questionnaire attached to the Third Quarterly Report have been provided to Dr Cralley, chairman of the Engineering Committee. Additional suggestions may still be forwarded to reach Dr. Cralley, Aluminum Company of America, 1S01 Alcoa Bldg., Pittsburgh. Pa. 15219, prior to October 19. INDUSTRIAL MEDICAL ASSOCIATION OF PITTSBURGH-CLEVELAND AREA held its Fall Scientific and annual business meeting on September 24 at Mellon Institute. Dr. deTreville was on the program and spoke on Mental Health Programs and Occupational Health Nursing. " AVAILABLE UPON REQUEST. "Ozone Toxicity Studies; Destruction of Alveolar Septa--a Precursor of Emphysema? P.Gross; L.D. Schecl and H E. Stokinger. Presented at 7th Conf. Rea. in Emphysema, Aspen 1964: Med. thorac. 22, 376-181 (196$). 30th ANNUAL MEETING -- OCTOBER 20-21, 196$ Programs and registration cards have been mailed to all members. This is your meeting and an excellent program has been arranged. Plan now to be with us and let us have your preregtstration card as soon as possible. 01 132 2S0o TABLE OF CONTENTS THIS ISSUE CONTAINS ABSTRACT NUMBERS 820-928 Threshold Limit Values lor 1965-- ACGIH.............................................................................. p*8e i News Items............................................................................................................................................... 1 Coming Events ........................................................................................................................................... 2 Legal Developments................................................................................................................................. 2 Books, Pamphlets and Notices............................................................................................................. 2 Industrial Medical Practice.................................................................................................................. fe Skin Diseases and Burns.................................................................................................................................. 12 Chemical Hazards...................................................................................................................................... 14 Industrial Dusts........................................................................................................................................... 17 Physical Aspects of the Environment.................................................................................................... 19 Radioactivity and X-Radiation.................................................................................................................. 20 Environmental Measurements...................................................................................................................22 Preventive Engineering................................................................................................................................. 23 Community Air Hygiene................................................................................................................................. 24 Management Aspects.......................................................................................................................................26 Accidents and Prevention.............................................................................................................................27 Index................................................................................................................................................................28 Addresses of Journals Abstracted......................................................................................................... 31 01 132 2801 t#v I he t 'm n im lh e in m uhint* *j ju d g m e n t wjh e th e r to in c lu d e or oKt lo d e .1 s o h s ta n c e lo r *fC ** V ; * | .s v) _* 3 -- wCSrX'**1 3-- . . ita f-?^t 9S s *r - a a- T if 7! i = * "3 5 -K a5 s 1 r> e r % i | 2 l eli i 5 * S SB U s ? : 3 : 5: * i 1 2e; ' *0 i a + x 2 s a 3 " St 7 = * l 3 Iff L Z 2 i* f = C -- j, JN " 5 5Jt t- 3S "- -J ? i! s!!2 ** f2 2* 9* . *** 9 x ft 3 * x ? . ft * -- X ft JT ft ^ ^ at ^i-vj?v i.ja5J9 :j**2X9; - 2 "5 S * s - ^ 3 Sf i i = ==?: s - * 5 5 s: M Sir = 21= i <? 1 ilztiH A x -- * ft ! * . - V! ; 1 r-IlfJ > < .i >1 *s *e ; ?i X - X cf < , : i r 3 5 ? 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Hygiene Foundation 4400 Fifth Avenue Pittsburgh, Pa. 15213 INDUSTRIAL HYGIENE DIGEST -Literature and News NEWS ITEMS a20 Safetv Publication. A new publication devoted to saiety and published by the New York State Department of Labor has been announced by Industrial Commissioner M.P. Catherwood. In an introduction to the first issue Commissioner Catherwood wrote: "This new publication is dedicated to the task of focusing attention on this all-important subject. Since the latter part of the 19th Century, the Department of Labor has been protecting workers in New York State in two ways: by providing safety education and engineering services and by enforcing occupational safety and health laws. The first issue of Spotlight on Safety was published in March. The second issue was published in June and is distributed free to interested persons. Names may be placed on the mailing list ny writing to the Office'of Public Information, New York State Department of Labor, State Office Building Campus, Albany, New York 12226. -- Safety Maint. 130, 13 (Aug. 1965) 62 1 Automobile Manufacturers Association. An informative 16-page booklet being offered by the Automobile Manufacturers Associ ation (AMA) does two things. First, it is the text of the presentation that AMA made in Detroit on April 7 before the Special Senate Subcommittee on Air and Water Pollution regarding Senate Bill 306 to amend the Clean Air Act. Second, it provides a succinct summary of the conclusions and confusions that have attended the development of automotive air pollution controls in California and elsewhere. The booklet can be had by writing directly to Automobile Manufacturers Association, Inc., 320 New Center Building, Detroit, Michigan 48202. -- J. Air Poll. Control Assn. 15, 332 (July, 1965) 522 Empty Drums May be Fatal. A warning against using cutting torches on "empty" oil drums was sounded at the 56th National Meeting of the American Institute of Chemical Engineers. Several people in the United States kill themselves each year by using such devices on drums that apparen tly arc empty but which contain lethal amounts of gas, Professor Noel de Nevers, of the Chemical Engineering Department of the University of Utah, told a symposium on lecture demonstration experiments. Professor de Nevers" warning was given during presentation of a paper. An Inexpensive Time Bomb. Cond. from Safety Maint. 130, 54 (Aug. 1965) 62 3 Professional Engineers Conference. The 3rd Annual National Conference of Professional Engineers in Industry will be held October 15 and 16 at the Oklahoma-Sheraton Hotel, Oklahoma City. The sponsor is the National Society of Professional Engineers. The theme will be Management and the Engineer in.Industry. For further information write the society at 2029 K Street, N. W. , Washington, D C. 20006. .. Chem. Eng. News 43, 59 (Aug.2, 1965) 01 132 2SU Industrial Hygiene Digest 5epterr.se r. 824 : Society of Toxicology Meeting. The annual scientific meeting of the Society of Toxicology will be held in Williamsburg. Virginia, on March 14,15, and 16, 1966. Anyone interested may attend. At the 1965 annual meeting, 80 scientific papers in all phases of toxicology were presented. Abstracts of these appeared in the journal of the Society, Toxicology and Applied Pharmacology. Volume 7, pages 478-504 (May, 1965). Papers for the 196b meeting may be submitted or must be sponsored ov members of the Society. Additional information about the meeting may be obtained from the Secretary: Mr. Carrol S. Weil, Mellon Institute, 4400 Fifth Avenue, Pittsburgh. Pa. 15213. COMING EVENTS 825 ' Oct. Oct. Oct. Oct. Oct. 10-14 11-13 11-14 12-14 12-14 ; Oct. 15-17 Oct. 15-22 Oct. 15-23 , Oct. 17.20 Oct. 17-21 Oct. 18-20 Oct. 18-22 Oct. 18-22 ; Oct. 18-22 Oct. 18-22 Oct. 19-21 Oct. 20-21 Oct. 20-22 Oct. 21-29 , Oct. 22-23 Oct. 25 Oct. 25-28 Oct. 26 Oct. 26-27 Oct. 27-29 Oct. 30-31 Water Pollution Control Federation, Annual Conference, Atlantic Citv, N .. American Oil Chemists' Society Fall Meeting, Cincinnati, Ohio. Association of Official Agricultural Chemists, Annual Meeting, Washington. D C Congress on Occupational Health, Indianapolis, Ind. Oak Ridge National Laboratory, 9th Conference on Analytical Chemistry in Nuclear Technology, Gatlinburg, Tenn. American Heart Association, Bal Harbour, Fla. College of American Pathologists, Chicago, 111. American Society of Clinical Pathologists, Chicago, 111. National Agricultural Chemicals Association, 32nd Annual Meeting, Hollywood, Fla American Society for Microbiology, Washington, D.C. Association of Life Insurance Medical Directors of America, Pasadena, Calif. American Association of Public Health Physicians, Chicago, 111. American College of Surgeons, Annual Clinical Congress, Atlantic City, N. J American Public Health Association, Chicago, 111. Contamination Control Seminar, Sponsored by Rochester Institute of Technology. Rochester, N. Y. Association of Analytical Chemists, Anachem Conference, Detroit, Mich. Industrial Hygiene Foundation, 30th Annual Meeting, Mellon Institute, Pittsburgh. Pa. Parenteral Drug Association, Annual Convention, New York, N. Y. American Occupational Therapy Association, Bal Harbour, Fla. American Association of Automotive Medicine, Rochester, Minn. American Association of Poison Control Centers, Chicago, 111. National Safety Council, National Safety Congress and Exhibition, Chicago, 111. American Society of Safety Engineers, Annual Meeting and Conference, Chicago, 111. Selenium-Tellurium Development Association, Properties and Uses of Selenium and Tellurium, New York, N. Y. American Cancer Society, New York, N. Y. Conference on Disaster Medical Care, Chicago, 111. LEGAL DEVELOPMENTS 826 Number of States with Specified Types of Labor Laws in November 1964. Thirty States, the District of Columbia, and Puerto Rico have minimum wage laws in operation. (Four others have such laws on their statute books, but they are not in operation > Of the laws in operation, those of 16 States and Puerto Rico apply to persons regardless of sex 2.01 132 2812 Industrial Hygiene Digest ?e?te Twenty set a statutory minimum, and seven now equal or exceed the Federal minimum a age rate. Forty-seven States, the District of Columbia, and Puerto Rico have wage payment .u- s. and the labor commissioner is specifically authorized to collect wages for the worker ir. 22 of them. Every State, the District of Columbia, and Puerto Rico has a child labor law. 14 States and Puerto Rico set a basic minimum age of 16 for employment. Forty.six States, the District of Columbia, and Puerto Rico provide mediation services, and in most States there is much activity in this area. Thirteen States and Puerto Rico have labor relations acts Twenty-five States and Puerto Rico have fair employment practices acts which prohibit ciscnmmation in employment because of race, creed, color, national origin, and ancestrv Seventeen States and Puerto Rico prohibit discrimination m employment because of age Fort. five States, the District of Columbia, and Puerto Rico regulate private employment agencies Forty States, the District of Columbia, and Puerto Rico have laws granting general ruiemaKir.g authority m the field of occupational safety and most of these have utilized this authority to con siderable extent. Fortv-six States have laws or regulations for the control of raciatior. .-.iiirts, 32 of these authorize Federal-State agreements, and 6 of the 32 have concluded sucn asrferr.tr: s with the Atomic Energy Commission. Every State, the District of Columbia, and Puerto Rico has a workmen's compensation law , also two Federal laws apply to longshoremen and huroor workers and to Federal employees. Of these 34 laws, 30 are compulsory; 33 apply to at leas: some occupational diseases, 34 to all occupational diseases. -- Bureau of .Labor Standards, U.S. Dept, of Labor, Bulletin 272, (Nov ~.. >r4 BOOKS, PAMPHLETS AND NOTICES 827 Directory of Safety and Construction Codes U.S. A. States and Cities. K. Siemon. AVAILABLE FROM; Code Publishing Co. , P. O. Box 442, Westfield. N. J. 07091. 264 pp PRICE: 86.80. A new directory that presents hard-to-find information on the safety and construct::):', codes and laws adopted and enforced by the states and cities in the U. S.A. , is now available It also lists health regulations applving to the construction industry and to the operation of industrial establishments. Valuable information may be provided to engineers and plant managers, contractors, architects, factory and fire insurance companies, and to government agencies. -- Safety Maint. 1 30. 26 (Aug. 1963) 828 Installations of Bulk Oxygen Systems at Consumer Sites. NFPA No. 566. National Fire Protection Association. AVAILABLE FROM: National Fire Protection Association, 60 Batter., march Street, Boston, Mass. 02110. 10 pp. (1965) PRICE: 50 cents. A newly revised edition of the NFPA standard for the installation of bulk oxygen systems at consumer sites has recently been released by the National Fire Protection Association. This 1965 text incorporates changes prepared by the Sectional Committee on Industrial Gases under the chairmanship of Myron A. Snell, Hartford Accident and Indemnity Company, and represents extensive updating over the previous edition. New requirements for electrical equipment at bulk oxygen storage areas and new provisions for relief valves for ASME containers are include? in this revised standard. An additional section in the 1965 edition requires noncombustible sur facing for areas where liquid oxygen leakage might occur. "Installation of Bulk Oxygen Svstems at Consumer Sites (NFPA No. 566)", formerly also issued by the National Board of Fire Unaerwnters as NBFU No. 566, is now available only m the official NFPA edition. 829 Installation of Sprinkler Systems. NFPA No. 13. National Fire Protection Association AVAILABLE FROM: National Fire Protection Association, 60 Batterymarch Street, Boston. Mass. 02110. 170 pp. (1965). PRICE: $1.00. A revised edition of the standard for the installation of sprinkler systems has just t>e-r issued by the National Fire Protection Association. Extensive changes in the 1965 text of this publication include the addition of a new appendix on indoor general storage and one on wooc 3. 01 132 2813 Industrial Hygiene Digest September. ; 133 plants. Also added are important new provisions for the permissive use of intermediate or r.:t.-. temperature rated sprinklers in occupancies where it is expected *iat there will be a last de-. e.ooing fire or a rapid release of heat. A new section explains why fewer sprinklers opening r.t^-.s better pressure and distribution from chose chat do open, consequently causing less exter.sie water damage. This new standard was prepared by the Committee on Automatic Sprinklers. Cordon F. Price, of the South-Eastern Underwriters Association. Atlanta, chairman. In stallation of Sprinkler Systems (NFPA No. 13) . formerly also issued by the National Board of Fire Underwriters as NBFU No. 13, is now available only in the official NFPA edition s30 Fourth Annual Bio-Environmental Engineering Symposium. Water and Air Pollution Control U.S. Air Force School of Aerospace Medicine, Aerospace Medical Division (AFoCi (Sept 3-*Oct. 1, 1964). 149 pp. In this Symposium, the Honorable John Steven Monagan reported that water po.iution has become the nation's single most desperate natural resources problem. Colonel Charles C Dills, Strategic Air Command Headquarters' Chief Industrial Hygiene Engineer, reporte-t on the U.S. Air Force (USAF) program of domestic and industrial waste treatment, tabulating effects of a number of chemicals on aquatic life. Vernon G. MacKenzie and B.G. Giel. M O . Chief and Assistant Chief, respectively, of the Division of Air Pollution, U. S. Public Heal:.-. Service reported on the Federal Clean Air Act and Air Pollution Evaluation Techniques Professor Leslie Silverman of Harvard provided a status report on air pollution problems ar.c controls, including power plant SO2 effluent treatment. In his opinion, a 'crash training program is apparently needed to produce the several hundred air pollution control officers which will be required over the next five years. USAF Surgeon General Office's Colonel Alvin F. Meyer, Jr. .(Assistant Chief for Bio-Environmental Engineering and Sciences), spoke on the newly conceived Bio-Medical Sciences Corps. Other USAF speakers covered research and development of environmental health hazard controls and human factors engineering considerations of the future. A limited number of copies of the proceedings of this interesting and timely Symposium may be obtained, while the supply lasts, by writing Colonel Harold V. Ellingson, USAF School of Aerospace Medicine, Aerospace Medical Division, Brooks Air Force Base, Texas. No charge is quoted -- RTP oeT 331 Illustrated Guide for Grading Eye Irritation by Hazardous Substances. U.S. Department of Health, Education, and Welfare, Food and Drug Administration. AVAILABLE FROM: Superintendent of Documents, U.S. Government Printing Office, Washington, D.C 30403 PRICE: $1.00. The Draize technique for evaluating the irritant capacity of liquids and solids, based on instillation of the substances into the rabbit eye, has been in use for a number of years. A description of the test, including a grading and scoring system, is given in "Appraisal of the Safety of Foods, Drugs, and Cosmetics" published in 1959 by the Association of Food and Drug Officials of the United States. This test has been modified to satisfy one of the criteria ( in Sec 191. 1 (g) (3) of Regulations) for determining whether or not a substance is an eye irritant under the Federal Hazardous Substances Labeling Act. The modified test appears as Sec. 191 . 13 01 1 the Regulations. As with any test which relies on subjective interpretation, grading of ocular reactions poses a major problem. The purpose of the photographs in this report is to provide guidance and clarification, so that observers may attain greater uniformity in grading the seventv of ocular responses, especially in borderline cases. -- Abstracted from Introduction 832 Steel Mill Ventilation. Committee on Industrial Hygiene of American Iron and Steel Institute. 118 pp. (May. 1965). This publication was prepared by the Committee on Industrial Hygiene with the endorse ment of the Committee on Industrial Relations and the Committee on Manufacturing Problems of American Iron and Steel Institute. Despite the fact that a considerable body of knowledge is available today in the field of ventilation for the control of in-plant air contaminants as requirec 01 132 2814 4. Industrial Hygiene Digest September. 19t,5 to maintain healthful working conditions at minimal costs, plant engineers too frequently do not apply such knowledge in the evaluation and solution of employee environmental health problems. The result is that many ventilation problems are still unresolved in plants, mills and buildings. This publication is a guide, and does not set forth standards to be .followed. Rather, its primary purpose is the collection, collation and presentation between the covers of a single volume, the concepts, principles, formulae and considerations wnich enter into and govern the design, in stallation and maintenance of ventilating systems which will achieve effective control of :n-plar.: atmospheres at minimum cost. A Partial Table of Contents follows: .. Cond. from Preface 1. Introduction 2. Contaminants: Methods of Generation and Sources in Steel Mills 3. Fundamentals of Air Flow 1. General Ventilation 5. Local Exhaust Ventilation 6. Exhaust Duct Design 7. Supply Duct Design S. Fans 9. Air and Gas Cleaning 10. Testing Bibliography Appendix 1 - Threshold Limit Values Appendix II- Explosive Limits This reference volume, is clearly written and illustrated, beautifully printed and bound. It is intended specifically for plant engineering and industrial hygiene engineering personnel in the steel industry. There is no mention of its general availability and no price is quoted. -- RTP deT 833 Occupational Health Practices -- Iron and Steel Industry. Committee on Industrial Health of American Iron and Steel Institute. 95 pp. (May, 1965). Part of the responsibility for the preservation of health and well-being rests with the Medical Departments of the various steel companies. How they go about discharging this responsibility, what are the facilities at their disposal, how their activities fit into the ;eneral organization of the company, and what are the relations of industrial medical departments and medical practitioners and organizations outside the mills is the subject of this revised edition of the book first issued by American Iron and Steel Institute in 1953 under the title STUDY OF INDUSTRIAL HEALTH PRACTICES FOR THE IRON AND STEEL INDUSTRY. It is anticipated that this book will be of value to all steel companies in their widespread facilities. It is quite probable that it will also be of interest to many other industrial operations. The publication of this book is an indication of the ever growing interest of the iron and steel industry of the Western Hemisphere in its employees. -- Cond. from Foreword In addition to those copies distributed to members of the Institute, copies have in the past been distributed, on request, to libraries, teaching institutions, professional and business associations, and individuals interested in Industrial health, both in the United States and abroad, as long as copies were available. Aside from covering the objectives and functions of a modern medical program in the steel industry, such subjects as the following are covered in some detail and excellent clarity of style: Industrial Hygiene Activities, Health Insurance, Absenteeism, Community Relations, Mental and Emotional Health, and special problems in volving rehabilitation. The new book, completely revised, beautifully bound, may be obtained from the Committee on Industrial Health, American Iron and Steel Institute, 150 East 42nd St. , New York, N. Y. 10017 for S2.40. -- RTP deT 834 Progress in Chemical Toxicology. Volume 2. Edited by A. Stolman. AVAILABLE FROM: Academic Press Inc. , 111 Fifth Avenue, New York, N.Y. 10003. 416 pp. (March 10, 1965). PRICE: $14.00 This book is written for the toxicologist, clinical biochemist, pathologist and pharmacologist. It will be of interest to many industrial hygienists because of its discussion of newly developed techniques and methodology of toxicological investigations and their significance 5. 01 132 281C Industrial Hygiene Digest September, ! a65 Topics included in this volume are: 1. The Absorption, Distribution and Excretion of Poisons and their Metabolites. 2. Detection of Volatile Organic Compounds and Toxic Gases tn Humans by Rapid Infrared Techniques. 3. An Approach to the Analysis of Biological Specimens for Basic Drugs. 4. Rapid Methods of Toxicological Analysis by Ion-Exchange Paper Chromatography and lonophoresis. 5. Developments in Spectrographv: Sample Preparation. o. Thin Layer Chromatography Application in Toxicology. Related information concerning absorption, distribution and excretion of poisons, is in some instances too brief, e.g. in comparison to Patty's thorough coverage (See Industrial Hygiene Digest, Abstract No. 123, page 6, February, 1965). Mention of Kehoe's work appears restricted, m the index and text, to the triethyl lead metabolite of tetraethyl lead (page 160). No reference is made in the author index to either Browning's comprehensive review Toxicity of Industrial Metals" or to Patty's excellent reference text. The volume is not recommended as a basic industrial hygiene reference text, but as a "yearbook of technical progress. " Inclusion of certain Threshold Limit Values (TLV's) from those published by the American Conference of Governmental Industrial Hygienists (ACGIH) m 1963 will require early revision, as certain materials, such as phosgene and carbon monoxide, have already been lowered in subsequent ACGIH publications. (TLV's for 1965 reproduced on page i. this issue 1 of Digest). --RTPdeT INDUSTRIAL MEDICAL PRACTICE 835 The Utilization of Employee Health Service in Hospitals. An Analysis of 40,000 Patient Visits. C.E. Lewis. Arch. Environmental Health 11, 16-21 (July, 1965). Information has been collected on 40,000 consecutive visits to the Health Service for employees and students at the University of Kansas Medical Center. Twenty-four hundred employees made approximately 11,000 visits per year. The average annual number of visits per employee increased for a period of at least three years following the institution of an occupational health service. Now, each employee makes about five visits per year. The average number of immunizations, skin tests and x-rays and laboratory tests per employee are reported according to hospital departments. Approximately 4% to 7% of all visits resulted in an employee being temporarily removed from duty. The cost of such a comprehensive occupational health program within the Medical Center environment was approximately $15 per employee per year. - - Cond. from author's summary 836 Human Factors in Industrial Medicine: The Challenge of the Industrial Health Professions. Reviews of a Symposium.- J.S. Felton. J.Occ. Med. 7, 189-192 (May, 1965). Any consideration of the human factors involved in today's work force requires the capabilities of a sophisticated occupational health team, whose skills will be challenged even more in the future because of the changes in industry's population configuration and production , methodology. Whether the combined efforts of an enlightened management group, a knowing medical and paramedical organization, and a different kind of labor body can retain for all the emotional satisfactions derivable from work can be told only when the next decade has filled its place in history. .. Author's summary 01 132 2816 6. Inaustnal Hygiene Digest Septerr.oer. a37 Health Ecucation in Industry. Potential and Practice. ina. Med. & Surg. 4> 563, 566-570 (July, 1965). Lorraine V. Klermar.. 4 Four hundred thirteen blue collar and clerical workers :rv eight industrial plants a wide range of health programs were interviewed to determine their contact with various plant health educational programs and the impact oi such programs on their level ot neaitr. information. This study indicates that an improvement in methods is necessary if healtr. education is to realize its potential role in industry. For example, effectiveness prooabiv would be increased if greater stress were placed upon person-to-person techniques uti.izmg the industrial physician and nurse. More attention should also be given to the problem of designing materials which will be of interest to older persons, those with less education, and those with language difficulties. Good health education programs are not accidental or haphazard, nor can they depend exclusively on an erratic supply of materials from outsice the plant, as is so often the case at present. Superior health education programs m industry, as elsewhere, must be planned. -- Cond. from author's s_m.rr.wr\ oid Implementing Improvements in An Outpatient Department. Arch. Environmental Health 11, 22-27 (July, 1965). W.R. Tucker, et al. As a result of the study assessing the value of the periodic examination of outpatients undertaken by Lasnof and Turner at Presbyterian-St. Luke's Hospital in Chicago, it became apparent that the outpatient clinic itself required periodic evaluation. This evaluation led to changes and innovations in the following areas: (1) broadening the scope of a new patient worxup: (2) instituting periodic physical examinations for patients in the medicine clinics: (3) co ordination of services in the management of the patient; (4) medical student assignments: (5) establishment of a diagnostic index: (6) the establishment of a quarterly chart review by the physicians and students; (7) the design of a mechanical system for the storage of medical and financial information; and (8) the design of a medical care check List. It was not possible to document improvement in the level of medical care as a result of these innovations. This may be due in part to our inability to accurately define and measure the level of medical care. However, it was felt that such measures can lead to improvements in medical care. -- Authors' summarv 839 Grip Measurements as a Part of the Pre-Placement Evaluation. H.M. Patterson. Ind. Med. 6 Surg. 34. 555-557 (July, 1965). The preplacement evaluation should include grip measurements, a record of which is the major hand and a detailed history of any hand or upper extremity injury. The premise grip m major hand equal grip in minor hand plus 107" is so inaccurate it should be discarded The fairest means of determining grip loss following a specific injury is to use the ratio of the grip in major hand compared to that in the minor hand prior to the injury and by using this formula determine what the grip in the injured hand should be, the difference being the actual grip loss. The dynamometer used should be the one preferred by your State Industrial Accident Commission. The author feels that the Jamar dynamometer is the best available instrument. ,, --Author's summary 840 The Overweight Problem. J.H. Hutton. Ind. Med. It Surg. 34, 623-627 (Aug. 1965). In most cases we do not know the cause of obesity. There probably are multiple etiological factors. Patients must expect to diet the rest of their lives. This does not mean that they must be on a semi-starvation diet. It merely means that they must watch the amount of food they eat, weigh themselves frequently and skip a meal whenever they gain two pounds. Endocrine disorders are often found in connection with obesity. Whether this is a cause-andeffect relationship or merely coincidental is not known. However, treatment of the endocrinopathy seems to help patients lose weight. Patients have a choice of programs and the doctor should select that one which is most likely to fit the patient. Moreover, be kind to fat people --their condition is not their fault but their misfortune. -- Cond. from author's summary 01 132 2817 Industrial Hygiene Digest September, 1365 341 Emiranment in Relation to Gynecologic Disease. Mary DeWitt Pettit. Arch. Environmental Health li. 116-126 (July, 1965). * Woman as well as man is intimately affected by psychological, educational, cultural, ; genetic, hormonal, nutritional, environmental factors and infectious disease from conception i through birth to death. Gynecologic complaints mirror the woman's personality traits, cultural, hereditary, and physical background. Environmental factors such as infections, exposure to < noxious agents, and malnutrition are preventable in the ideal society. With the increasing l manipulation of environmental factors possible in our time, one would hope for increasingly , effective preventive medical efforts. There are 64 references. - Author's summary 842 i The Midwell Seminars. A Report on Industrial Psychiatry for Small Industries. R.. Crawshaw. Arch. Environmental Health 11, 92.97 (July, 1965). A series of seminars were conducted for five small manufacturing firms. The seminar focused on human behavior concepts in an attempt to help the management of these rapidly growing firms anticipate and deal with problems which could be distorting and crippling in the later development of the firms. Psychoanalytic knowledge was relied on, the format was lecture- group discussion and summation. As judged by the response of the participants and staff, the seminars were successful. -- Author's conclusion 843 Tension Myositis. H. J. Flax. Ind. Med. & Surg. 3j4, 558-561 (July, 1965). Tension myositis is the resultant of poor body mechanics, weakened muscles, and occupational strain in emotionally unstable individuals. The main symptom is muscle pain, which may be localized or referred and may completely incapacitate some patients. The referred pain follows a definite pattern from localized primary and sometimes secondary trigger points. Treatment consists m reassuring the patient that he has no organic disease such as arthritis or cancer, correction of poor body posture, strengthening weakened muscles, and increasing impaired joint motion. The trigger areas may be injected with 1% procaine hydrochloride solution to break up the vicious circle producing pain. Symptomatic therapy should not be emphasized, and mechanical supports should not be prescribed. Ataraxic drugs muddle the mind, and if they are given in dosage sufficient to produce muscle relaxation, most patients complain of somnolence. Most important, however, is to discuss the principal underlying cause of this condition--the anxiety tension state producing this psychophysiological syndrome. The patient must be made to understand that once he has developed emotional security, this maturity will cure his symptoms. -- Author's summary 844 Contact Lenses and the Railroad Industry. C.J. Black. Ind. Med. & Surg, 34, 632-635 (Aug. 1965). There is at present some confusion as to the procedure for fitting and the design and care of the contact lens. There is the problem of the change in shape of the cornea resulting in an inability to use spectacles in conjunction with contact lenses, particularly in cases of emergency. Corneal contact lenses are prohibitive in certain dusty environments. They also jmay not produce as good visual acuity as spectacles, and lastly they do cause moments of discomfort no matter how many years the lenses have been worn. They have utility in that they can be substituted for spectacles, and in so doing may beofaid to morale. Only in special jeye problems, such as keratoconus and aphakia, do they have more value than spectacles, and then only if the vocation is suitable. -- Author's summary 845 New Aspects of Mycobacterial Skin Tests. III. Simultaneous or Sequential Infection with Different Mycobacteria. W.W. Johnston, et al. Arch. Environmental Health 11, 37-49 (July, 1965). A method of skin testing in man which utilizes multiple PPDs administered in duplicate and read by comparison has been proposed as a practical substitute for the scattergram type of testing employed with the experimentally infected guinea pigs. - Cond. from authors' summary 01 132 281S Industrial Hygiene Digest September. . 46 The Cultivation of a Novel Type of Common Cold Virus in Organ Cultures. D.A.J. Tyrrell and M. L. Bynoe. Brit. Med. J. 1, 1467 (June 5, 1965). Colds developed when volunteers treated with dixnethylchlortetracycline were ;i . er. the filtered nasal washings from a boy with a cold; no colds developed if the washings were treated with ether. The virus m the washings would not grow m any of a variety of tissue cultures or in embryonated eggs, but was regularly propagated in organ cultures of human fetal tracheal epithelium. The colds produced by washings and culture fluids were similar and in the aggregate, distinct from those produced by M rhinoviruses. The sera of a few infected volunteers showed small rises m antibodv titer against influenza C and Sendai .-.ruses, but most showed no rise to ether-labile human respiratory viruses. There were slight degenerative changes in infected organ cultures, and marked resistance to the growth ot another virus-virus interference. -- J. Am. Med. Assn. References 6 Re-, lews 647 Refractory Heart Failure. R.H. Seller, et al. J. Am. Med. Assn. 193, 147-143 (July 13, 1965). When dealing with refractory heart failure, the physician should first secure a complete and accurate diagnosis. Then all remedial cardiac and extracardiac conditions should se corrected. Next, he should attain optimal conditions for diuresis by establishing electrolvte balance, full digitalization, and complete bed rest. Once these conditions have been achieved, diuresis in patients with so-called refractory edema can usually be achieved by using multiple diuretic regimens including parenterally administered mercurials, potent orally administered sulfonamide diuretics-, and antialdosterone agents with acidifying drugs and other substances which potentiate diuretic activity. Dialytic procedures and radioactive iodine therapy are occasionally useful. -- Authors' summary 848 The Electrocardiogram and Ischemic Heart Disease in Aircraft Pilots. C. W. Manning. Can. Med. Assn. J. 93. 158-160 (July 24, 1965). A review of the Royal Canadian Air Force electrocardiographic (ECC) program, for selection of aircrew and detection of coronary disease in trained aircrew is presented. Twent-. reported cases of death due to coronary disease in pilots while at the controls of an aircraft are reviewed. The use of routine electrocardiography in the selection of aircrew has proved to be of considerable value, particularly in view of the high cost of training. The ECC continues to be the most sensitive means of detecting asymptomatic coronary disease in aircrew personnel It is apparent that from both the military and commercial standpoint the incidence of aircraft accidents due to coronary disease is extremely small. This is due in large part to the careful medical supervision of flying personnel including the routine use of electrocardiography in the assessment of flying fitness of aircrew. .. Author's abst. 849 Causes of Death in Acute Leukemia. A Ten-Year Study of 414 Patients from 1954-1963. E. M. Hersh, et al. J. Am. Med. Assn. 193, 105-109 (July 12. 1965). Major causes of death in acute leukemia were infection in 70% of patients and hemorrhage in 52%. In 38% of the patients there was more than one cause of death. Striking changes took place during the 10-year-study period. Fatal hemorrhage declined to nearly half the early rate, and fatal staphylococcal infection from 23.5% :j 3. 1%. At the same time fatal infections due to fungi increased from 8.2% to 23.2%. -- Authors' abst. 850 An Outbreak of Hepatitis Traced to Food Contamination. P.R. Joseph, et al. New Engl. J. Med. 273, 188-194 (July 22, 1965). Between November 23 and December 16, 1961, 22 officers and one enlisted man at a naval air installation contracted infectious hepatitis. All officers had eaten at the dining room of the Bachelor Officers' Quarters on October 26 and 27; this was the only activity common to those who became ill. One hundred and sixty-two officers ate one or more of the suspect meals 9. 01 132 2819 Industrial Hygiene Digest September. 13*5 Foil on.-up information was obtained on 158. Food questionnaires revealed that none of the < 22 denied having eaten potato salad at the dining room, whereas 25/i of the 136 others who die not acquire hepatitis indicated that they had not eaten potato salad. It was concluded that the o.sease j -vas primarily spread through potato salad. A salad handler with minor illness in October. perhaps anicteric hepatitis, who evidenced unusual behavior relating to urination, was considered to be the likely source of contamination. The mechanics of contamination are obscure althougr. fragmentary evidence suggests that salad dressing, perhaps contaminated by urine, may have j been the specific responsible ingredient. The one case in an enlisted man occurred m a man ! assigned to the salad makers unit and thus was perhaps peripherally related to the outbreak, i There are 21 references. - - Authors' summary s51 Disc Surgerv and Chronic Low-Back Pain. M. L. Rowe. J Occ. Med. T, 196-222 (May. 1965). The similarities in age, history of back condition, mode of onset of symptoms. I physical signs, and x-ray and laboratory characteristics between a study group of 160 men witr. proved disc protrusions and a previously reported undiagnosed group of patients with chronic ; low-back problems were striking and tended to fortify the opinion that the most common cause of nonspecific low.back pain is degeneration of the intervertebral disc, in its earlier or milder stages. Hernia occurred more than twice as frequently among men with proved disc disturbances as it did in a survey group of male employees of comparable age doing the same types of work in che same plant. This observation is subject both to genetic and to mechanistic interpretations, as is the fact that the men in the disc group averaged nearly 2-inches taller than their fellow workers. Further clinical observations and a refined knowledge of chomosome mapping may provide clarification of the meaning of these fir.uings. The end-result statistics cannot be compared with those reported in other studies because of the manner of selection of cases and the criteria used in this study for end-result rating. It is hoped that these statistics may j give the industrial physician some idea of what to expect in terms of time lost from work and the probabilities of permanent job restriction when disc operation is required. Some of i the correlations between end results and other factors seem to carry valid prognostic information | and a few of them may have some therapeutic implications of value. Six references are given. -- Author's summarv i 852 ] Histologic Changes in Esophagus in Relation to Smoking Habits. Arch. Environmental Health 11, 5-15 (July. 1965). O. Auerbach, et al. A microscopic study was made of 12,598 sections of esophagus from 1,268 men who died and were brought to autopsy at the Veterans Administration Hospital, East Orange. N. J. ! The smoking habits of these men were ascertained by interviewing their relatives. Epithelial cells with atypical nuclei were found far more frequently in cigarette smokers than in non- smokers; they increased in frequency with amount of cigarette smoking and with age and were found more frequently in ex.cigarette smokers than in nonsmokers. Epithelial cells with dis integrating nuclei were found primarily in ex-cigarette smokers. Basal cell hyperplasia of the epithelium was found more frequently in cigarette smokers than in nonsmokers and increased with amount of cigarette smoking. Hyperactive glands'were found more frequently m cigarette smokers than in nonsmokers. Cellular infiltration of the wall tended to be somewhat more pronounced and ulceration tended to occur somewhat more often in nonsmokers than in cigarette smokers. - - Authors' summary 853 Experimental Lung Cancer in Hamsters. Repetitive Intratracheal Applications of Two Carcinogenic Hydrocarbons. P. Cross, Ethel Tolker, Mary A. Babyak, and Marianne Kaschak Arch. Environmental Health 11, 59-65 (July, 1965). Reprints Available from Industrial Hygiene Foundation Upon Request. j Hamsters were given 4 to 13 intratracheal applications of 9. 10-dimethyl-1, 2-benz anthracene in mineral oil in doses of 100 micrograms over periods from 4 to 16 months. Of 14 hamsters surviving 4 months or longer after the initial dosage, 8 or 57% developed a tracheal or peripheral lung cancer. Other hamsters given the same carcinogen in gelatin or 3,4-benz(a) pyrene in either mineral oil or gelatin intratracheally developed respiratory tract tumors with a significantly smaller rate of occurrence. This method of repetitive intratracheal application of carcinogens is of doubtful value because it is associated with a mortality rate of 60% prior to the development of the first tumor(at 4 months). -- Authors' summary `01 132 2820 Inaustnai Hygiene Digest Septemoer . 1^35 854 An Epidemic of Streptococcal Wound Infections. R. W. Quinn and J. W Hillman Arch. Environmental Health 11. 28-33 (July, 1965). This paper presents the epidemiologic, clinical and bacteriologic findings of a small epidemic of surgical wound infections due most likely to a single strain of group A hemolytic streptococci. The source oi infection for four of the five patients was one of the members o: the surgical operating team who had a streptococcal infection at Che time he assisted at the operations. The mode of transmission would appear to be direct contamination of the open wound from streptococci expelled through the surgical mask of a surgical assistant. The surgeon himself was infected after changing the dressings of one o: the patients. The lesson to be iearned from this outbreak is that no one with a streptococcal infection should perform surgical procedures and that gauze masks are inefficient m protecting the environment from hemolytic streotococci. -- Authors' summary 8 55 Reactions to Tetanus-Diphtheria Toxoid (Adultl. C.W. Sisk and C.E. Lewis. Arch. Environmental Health i_, 34-36 (July, 1965). A survey of the incidence of reactions to combined diphtheria-tetanus toxoid containing 2 Li of diphtheria toxoid and 20 Lf of tetanus toxoid per ml. was accomplished in 50 consecuti.e new employees seen in a Hospital Health Service. Nine per cent local reactions and less than 0.8% systemic reactions were noted. Previous studies have indicated this dosage to be effective in producing adequate concentration of antitoxin. Evidence from this series indicates that this combined toxoid is a safe, routine immunizing agent in adults and does not require cumbersome preinjection screening with Schick or Moloney tests. -- Authors' summary 85 6 Lack of Effect of Two Hexachlorophene-Containing Soaps Under Norma. Hospital Working Conditions. C.R. MacPherson, M.F. Sparkman, and D. R. Whitney. Am. J. Surg. 109, 699-704 (June, 1965). Two soaps containing 0.5% and 2.0% hexachlorophene, respectively, were compared with a standard hard bar soap for a 5-week period. It was found that with normal hospital usage, neither of the soaps containing hexachlorophene offers any detectable advantage over the standard hard bar soap in the reduction of the superficial skin flora. There was neither a rapid fall in bacteria counts in the first week nor a progressive fall over the five weeks of the experiment. A statistical analysis of all possible factors including climatic variation showed no association which could explain this lack of effect. The authors did not test liquid hexachlorophene preparations the disinfectant effects of which are firmly established. Contact with water precipitates hexachlorophene and prevents its transfer from soap to skin. -- J. Am. Med. Assn. References 6 Reviews 857 Experimental Emphysema. Its Production with Papain in Normal and Silicotic Rats. P. Cross, E.A. Pfitzer, Ethel Tolker, Mary A. Babyak, and Marianne Kaschak. Arch. Environmental Health 11, 50-58 (July, 1965). Reprints Available from Industrial Hygiene Foundation Upon Request. The intratracheal injection of papain produced emphysema in all rats so injected. The emphysema, initially purely of centrilobular type, was demonstrable within six hours after the papain injection. The severity and extent of emphysema tended to vary from animal to animal, even with the same dose level of papain and the same survival time, but the im pression was gained that, in general, the disease was more severe and of mixed, centrilobular and panlobular, character with larger dosage or longer survival. The papain-induced emphysema resembled clinical emphysema not only in its centrilobular and panlobular forms, but also in the occurrence of alveolar destruction without an associated inflammatory reaction. Severely silicotic lungs were less susceptible to the development of papain-induced emphysema than normal lungs. There was also a significantly greater tolerance of silicotic rats to intratracheal papain than was the case with normal rats. The papain-induced emphysema, in its early stages, exhibits three stigmata in thin histologic sections that are indicative of alveolar destruction. These are the presence of alveolar spurs, of fore-shortened T- or inverted L-shaped structures, and of 11. 01 132 2821 Industrial Hygiene Digest Seattrr. ber. 1^65 acute angulation of septa, often forming angles of less than 30* with the alveolar floor. The initial localization of the papam-induced emphysema to the respiratory bronchiole and adioir.mg alveolar ducts is explained on the basis that the proximal portions of the primary lobule are the most vulnerable to noxious agents. Reasons are advanced for the greater vulnerability of this region to damage from noxious materials. This method may prove to be a useful tool for the study of factors that may be thought to aggravate emphysema. There are 13 references. -- Authors' summary SKIN DISEASES AND BURNS 858, Cutaneous Carbohydrate Studies: Glucose Content of Skin of Back of Normal Persons. E.S. Peterka and R. M. Fusaro. J. Invest. Dermatol. 44, 381 (June. 1965). The average glucose content of the skin of the back of 24 subjects free of diabetes and other diseases was determined in the fasting state by the glucose oxidase method, and it was found to be 40 to 50 mg./lOO gm. wet weight of skin. This figure is lower than any other in previously reported studies. The ratio of the skin glucose to blood glucose was 55%, which appears to be consistent with other reports. -- J. Am. Med. Assn. References & Reviews 859; Contact Dermatitis from Synthetic Oil of Mustard. L.E. Gaul. Arch. Dermatol. 90, 158 (1964). A Negro patient developed an acute contact dermatitis from a household liniment. Patch-testing to all the ingredients showed that synthetic oil of mustard was the sensitizer A patch test with 0. 1 % oil of mustard gave a positive reaction. The principle ingredient of synthetic oil of mustard is allylisothiocyanate. J. Occ. Med. Absts. 860 i Vesicant Dermatitis Due to Prairie Crocus (Anemone Patens L.). T.H. Aaron and E. L. Muctitt. Arch. Dermatol. 90, 168 (1964). The prairie crocus has been used as a folk remedy for many years. It contains an active vesicant principle'. It should be considered in a differential diagnosis of any vesiculating dermatitis, especially in prairie areas. -- J. Occ. Med. Absts. ] 861 Insect-Sting Allergy. Questionnaire Study of 2,606 Cases. Insect Allergy Committee of the American Academy of Allergy. J. Am. Med. Assn. 193, 115-120 (July 12, 1965). Analysis of questionnaires from 2,606 persons sensitive to insect sting reveals an expectancy of progressively severe reactions in about 65% of persons not hyposensitized. Following hyposensitization, reactions to subsequent stings are reduced in about 90% of treated persons. Protection may be maintained for years or may be lost in less than a year. Pro- , gressirely severe reactions to stings are uncommon following recent adequate hyposensitization Hyposensitization is recommended for persons who have had any degree of systemic sensitivity following an insect sting. Epinephrine is the primary drug of choice for treatment of an acute, immediate reaction to insect sting. -- Authors' summary 862! Itching Eruption in Miners Caused by a Rare Beetle (Triboieum Castaneum). ' Brit. J. Dermatol. 76, 388 (1964). D. M. Williamson Coal miners engaged in the filling of sacks with broken rocks developed a parasitic | papular eruption mainly of the trunk. It was shown that there was an associated infestation of the jute sacks by the beetle Triboieum castaneum. -- J. Occ. Med. Absts 12. 01 132 2822 Industrial Hygiene Digest September. ;365 663 Serum Sickness and Recurrent Angioedema After Bee Sting. R. K. Sheehan. J. Am. Med. Assn. 193, 155-156 (July 12. 1965). t A case o recurrent angioedema and serum sickness following a bee sting is presentee Other atypical sensitivity reactions to Hymenoptera stings as recorded m the literature are briefly mentioned. -- Author s iu.nir.arv 664 Incidence of Contact Sensitivity in Atopic Dermatitis. S. Epstein and A. H. Mohajerin. Arch. Dermatoi. 354(1964). The general belief that a contact dermatitis occurs rarely, or certainly not more frequently, in patients with atopic dermatitis than m normal individuals is challenged Or.e hundred patients with atopic dermatitis were compared to 100 patients with psoriasis a.-.c 3 3 with acne. It was found that 38^<r of the atopies and 9% of the psonatics had significant contact sensitivities to coal tar. The incidence of contact dermatitis in patients with atopic dermatitis is due to increased exposure and to a constitutional factor. The presence of contact dermatitis m patients with atopic dermatitis should be appreciated and promptly diagnosed since it mav be of the greatest help to the patient. -- J- Occ. Med Absts 565 Lincomycin in Dermatologic Practice. B. Kanee. Can. Med. Assn. J. 93, 320.333 (July 31. 1965). In clinical studies with a new oral antibiotic, lincomycin, excellent results were obtained in the treatment of carbuncles, furuncles, folliculitis, cellulitis, lymphangitis, lymphadenitis, pyonychias and dermatitis infectiosa eczematoides due to coagulase-positive Staphylococcus aureus and to Streptococcus hemolyticus Type A. Encouraging results were noted in a small series of acne conglobata (cystic acne). Loose stools and diarrhea were frequently encountered but these symptoms abated when the dosage was reduced. .. Author's abst. 866 Oxygen Bandage and Asiaticoside in Treatment of Burns. J.A. Gravel. Laval Med. 36, 413.415 (May, 1965). Oxygen bandage and administration of asiaticoside (Madecassol) were employed in the treatment of three severely burned patients. This open method of therapy consists in suspending the burned limb in plastic sacs filled with pure oxygen. An oxygen tent is used when the burns are present over the entire body. The favorable effect of asiaticoside was evidenced m all patients by the rapid healing of burns. The occurrence of infection, which causes high mortality among patients treated by conventional methods, was never noted in this study. -- J. Am. Med. Assn. References li Reviews 867 Mesh Skin Grafting. Report of a Typical Case. J.C. Tanner, Jr., J.J. Vandeput, and W.H. Bradley. J.Occ. Med. 7_, 175.176 (May. 1965). The mesh skin graft offers a new technique of resurfacing denuded areas. By this method, a split.thickness sheet of skin is transformed into a mesh of skin by using a Meshgraft dermatome. (Illustrated m the report). This instrument consists of two 4-inch rollers, one knurled and the other with multiple parallel cutting blades with staggered gaps. The splitthickness skin graft is turned between the rollers, producing multiple staggered cuts, so that when the graft is expanded, a mesh is produced. Meshing allows the skin graft to expand moderately, to have complete drainage, to have increased edge exposure for epithelial growth, and to regain area loss in shrinkage when a graft is removed. These qualities are most important in therapy of burns, and in the case described, mesh grafting allowed early and uneventful skin coverage of a major burn in a 5-year-old child. A 30% third-degree burned area was grafted with a 10% donor area with immediate good results. This new method of skin grafting is being used in several major medical centers and evaluation of the results will be subsequently reported. 13. 01 132 2823 Industrial Hygiene Digest September. 1365 CHEMICAL HAZARDS 663 Carcinogenic Action of Motor Engine Oil Additives. R.W. Baldwin, G. J. Cunningham, and D. Pratt. Brit. J. Cancer 19, 503-507 (Sept. 1964). Examination of component fractions of a proprietary engine oil additive previously shown to be carcinogenic for mouse skin has demonstrated that the carcinogenic substances are contained almost exclusively in the base oil. A further additive agent used mainly as an upper cylinder lubricant also proved to be carcinogenic for mouse skin. The significance , of the findings are discussed, particularly with regard to the possibility that these substances may be atmospheric pollutants. There are 13 references. -- Public Health Eng. Absts 369 : Synergism Among Oral Carcinogens III. Simultaneous Feeding of Four Bladder Carcinogens to ; Dogs. W.B. Deichmann, et al. Ind. Med. & Surg. 3ji, 640-649 (Aug. 1965). Each of four bladder carcinogens was fed individually by capsule to female beagle dogs over a period of three-years (31-37 months) (1.0 mg. /kg. /dog, live times a week). 2-Naphthylamine: 4. 7-9. 3 g. /dog (0. 55-0. 77 g. /kg. /dog), six dogs: no neoplasia. 4.Amino- biphenyl: 5.4-7. 3 g. /dog (0. 66-0. 74 g. /kg. /dog), six dogs: each showing either one or several papillomas or carcinomas. 4-Nitrobiphenyl: 5.2-7.6 g. /dog (0. 68-0. 75 g. /kg. dog, six dogs: ! no neoplasia. Benzidine: 4. 8-8.5 g. /dog (0.60-0.74 g. /kg. /dqg). six dogs: no neoplasia. Each of another group of female beagle dogs received by capsule 1.0 mg./kg. of each of these four 1 compounds or a total of 4.0 mg./kg./dog, five times a week. Total dose: 19.7-40.8 g. /dog (2.08-3.92 g. /kg. /dog). Six dogs: five developed papillomas or carcinomas, one dog remained negative. The carcinogenic action of 2-naphthylarmne, 4-aminobiphenyl, 4-nitrobiphenvl and benzidine are not additive when fed together, each in a dose of 1.0 mg. /kg. /dog. 4-Aminobi- phenyl is very considerably more carcinogenic to the urinary bladder of the beagle dogs than previously reported. It is definitely more carcinogenic than 2-naphihylamine, 4-nitrobiphenyl , or benzidine. -- Authors' conclusion 870 j Safe Handling of Phosphorus. R.E. LeMay and J. K. Metcalfe. Chem. Eng. Progr. 60_, 69-73 (Dec. 1964). Operating experience is related: Production, piping, pumping, measurement, metering, storage, transportation, maintenance, sampling, and safety. Emphasis is given to the electric j furnance method of production, and handling phosphorus in the molten state when it is spontaneously flammable and toxic. The phosphate ore is reduced with carbon with silica. Dust removal process and centrifugal separation of phosphorus are explained. .Waste sludge--about 4% phosphorus --is burned in a phosphoric acid unit. Elemental phosphorus is shipped in insulated and heated tank cars. Six figures show process and operating features. - Public Health Eng. Absts. 871 Treatment of Hydrofluoric Acid Burns. J.M. Wetherhold and F. P. Shepherd. J. Occ. Med. 1, 193.195 (May, 1965). Hydrofluoric acid represents a serious hazard wherever it is encountered. It passes readily through the horny layers of the skin and continues to spread deeper and deeper into the underlying tissues, even in the fingertips, down to the bone. The burns it produces are painful and generally slow to heal. Contact with the anhydrous hydrogen fluoride or with a concentrated solution causes immediate pain, and signs of tissue necrosis appear almost at once. The dangerous feature of hydrofluoric acid is that contact with a dilute solution generally goes un noticed. The use of cold to restrict lymph and blood flow, thus inhibiting the development of edema, has been established as useful in the treatment of burns of all types. Hydrofluoric acid burns are to be set apart as having particular requirements as to treatment. The use of cold in 14. 01 132 2821 industrial Hygiene Digest September, 1965 conjunction with Hyamine 1622 has served to meet some of these special requirements. the mechanism through which this quaternary amine neutralize! or counteracts hydrofluoric acid in the tissues remains uncertain. Nonetheless, the combination of cold and Hyamine (0 2 "i, m the form of iced Hyamine baths or soaks, has yielded by far the best results in the treatment of over 100 cases of hydrofluoric acid burns. a?2 Histopathologic Effects of Chromate Chemicals. Report of Studies m Rabbits, Guinea Pigs. Rats, ana Mice. C.H. oteffee and Anna M. Baetjer. Arch. Environmental Health 1 1, 66-75 (July, 1965). Rabbits, guinea pigs, rats, and mice were exposed by inhalation or intratracheal injection to various chromium chemicals, simulating the exposures in the old chromate refining plants. No malignant tumors of the respiratory tract were produced. The number of adenomas found in the mice, rats and guinea pigs was not significantly greater in the chromate exposed animals than in the control animals. One rat exposed by inhalation to chromate dust developed a keratinizing tumor of the lung, but this was considered benign by histologic criteria. The previously reported increased incidence of lymphosarcomas in rats inhaling mixed chromate oust was not confirmed. A high incidence of prominence of alveolar epithelium was found in rabbits, guinea pigs, and mice injected intratracheally with a complex zinc chromate pigment. A significantly higher incidence of alveolar and interstitial inflammation with or without prominent alveolar epithelium and fibrosis was found in guinea pigs which inhaled the chromium chemicals and in mice injected with zinc chromate than in control animals not exposed to chromates. Cranulomata appeared in a significant number of the chromate-exposed rabbits, guinea pigs, and rats but were not seen in the control animals. Infection of rats with PR influenza virus associated with intratracheal injection of chromates did not lead to the production of tumors and no demonstrable long term effects on pulmonary or other visceral lesions. The attempt to induce malignancy in alveolar epithelium of mice by the combined action of zinc chromate and a carcinogenic hydrocarbon was unsuccessful. There are 21 references. -- Authors' summary 873 Pulmonary Retention and Excretion of Mercury Vapors in Man. J. Teisinger and V.FiserovaBergerova. Ind. Med. 6 Surg. 34, 580-584 (July, 1965). Five experiments were carried out in an exposure chamber, in which experimental subjects inhaled mercury vapors in a concentration of 100 micrograms/cu.m, for seven hours (in one case, 200 micrograms/cu.m, was used). A retention of 76% was found in nasal inspiration and mouth expiration; while retention decreased up to 20% in mouth inhalation Retention was constant from the beginning of the experiment. In people who had worked with mercury for many years, retention was unchanged. Mercury is retained predominantly in respiratory tracts (no mercury was found in alveolar air). Pulmonary desaturation is low and rapid in comparison with solvents. Mercury excretion in urine is protracted and irregular, and thus the absorbed amount cannot be estimated. -- Authors' summary 874 Studies of Nickel Carcinogenesis. Fractionations of Nickel in Ultracentrifugal Supernatants of Lung and Liver by Means of Oextran Cel Chromatography. F. W. Sunder man. Am. J. Clin. Pathol. 42, 228-236 (Sept. 1964). The relation of the inhalation of nickel to pulmonary carcinogenesis has been the subject of numerous clinical and experimental studies. In previous studies, published from the author's laboratory, pulmonary carcinomas have been induced in rats by means of exposure to the toxic vapors of nickel, especially nickel carbonyl, and nickel has 7een implicated as a pulmonary carcinogen in tobacco smoke. In the current study chromatographic fractionations were per formed on the ultracentrifugal supernatants of homogenates of rat lung and liver by the use of columns of dextran gel (Sephadex G-100). A major portion of nickel in these tissue supernatants hai been demonstrated to be firmly bound to macromolecular constituents. Following acute and chronic inhalation of carcinogenic levels of nickel vapors, the predominant increases in the concentrations of nickel have been observed in the macromolecular fractions. These findings are consistent with the previous demonstration of nickel in purified preparations of ribonucleic acids (RNA) from several rat tissues,and with the observation of increased con centrations of nickel in high molecular weight RNA from lung and liver following the inhalation of nickel vapors. -- APCA Absts. IS. 01 132 282: Industrial Hygiene Digest Seoterr.oe r . >6* o75 Induction of Liver Tumors in the Syrian Golden Hamster by Feeding Dimethylmtrosarr.ir.e L. TomatiV, P.N. Magee, ana P. Shubin. i. Nati. Cancer Inst. 4_3, 341 (Aug. *964) Continuous administration of dimethylnitrosamine m the drinking water to Svr;ar golden hamsters resulted m a high incidence of botn cholangio-carcinomas and liver-cell carcinomas. One adenoma of the kidnev and two hemang;oencotr.e;iomas of tne liver were Doser-.ed also. No tumors of the tracnea ir lung were recorded -- J. Occ Med Absts ?"6 Anaonvlactic Death After Administration of Triphenvlmethane Dve. S. Hepps and M Oolimger New Lr.gl J. Med. 2 72 , i 2S 1 (June 17, 1 9e>5 > . A triphenylmethane dye, alphazurme 2G, which was recently introduced, reported stains only \ iable tissues, thus enabling immediate differentiation of secona and tr.irc degree burns. This, dye was administered to a small series of burned patients in whom ear*s ae- bridement and grafting was considered. In one patient an immediate anaphylactic reaction occurred which subsequently led to his death. Previously administered commonly usee crugs with related chemical structures mav have been responsible for the development of a r.vper- sensitivity state in this patient. Alphazurme 2G should be used with caution until its toxicitv and antigenicity are established. -- J. Am. Med. Assn. References L Reviews 877 Pulmonary Styrene Vapor Retention. V. Fiserova-Bergerova and J. Teisinger. Ind. Med. & Surg. 34, 620-622 (Aug. 1965). Experiments with styrene were carried out in seven volunteers who inhaled styrene vapor concentrations of 65 micrograms/liter to 162 micrograms/liter. Styrene retention following nasal inspiration and mouth expiration averaged 66%; following mouth inspiration and expiration only 59%,and did not change during the two or five hours of exposure. Air analysis of one deep expiration showed that styrene concentration m expired air decreases with time according to a curve that may be described by the sum-total of two exponentials. Of inhaled styrene, a concentration of about 6% is retained in alveolar air. After ending exposure styrene was not expired by the lung. -- Authors' summary 678 Comparative Hazards from Some Insecticides. H.G.S. van Raalte. Ind. Med. b Surg. 34. 578-579 (July. 196SL The author presents data which show that pesticides as a group, are not an important cause of accidental poisoning. This is notably true as regards the so-called persistent organochlor:ne insecticides. Over the last 12 years he has collected data on 110 cases of fatal poisoning by aldnn, dieldrm and endnn that have occurred worldwide . He is almost certain that these represent all the cases that have occurred. As can be seen from a table, the great majority, or almost 75% of all cases were suicidal and thus not accidental. Parathion was the major cause of fatal insecticide poisoning in more than 3,100 cases* involving six years' experience in Japan. A review of the literature will clearly show that fatal accidental poisoning by organophosphate insecticides occurs much more frequently than by organochlonne insecticides 679 Aplastic Anmia Following Exposure to Benzene Hexachlonde (Lindane). J. P. Loge. J. Am. Med. Assn. 193, 110-114 (July 12 ,~1965)~ In two fatal cases of aplastic anemia, there was a prolonged indoor exposure to vaporized benzene hexachlonde (lindane). The chemical was in pellet form and vaporized by electrical warming of a ceramic jacket. The literature was reviewed and although benzene hexachlonde has been a suspected toxin before, this is, to the author's knowledge, the first detailed report of benzene hexachlonde exposure and aplastic anemia in which other suspicious drugs or chemical agents were not used. These two cases allow only a presumptive conclusion to be made. Further repeated observations by others will be necessary to make historical evidence alone sufficient for an etiologic diagnosis. More specific in vitro and in vivo testing procedures are urgently needed to screen the increasingly complex array of drugs to which most of us are exposed. Only in this way can a precise relationship between cause and effect be made There are 34 references. -- Author's abst 16. 01 132 282C Industrial Hygiene Digest September. : ^65 880 PDA Excretion Levels. Studies m Persons with Different Degrees of Exposure to DDT W.F. Durham, J.F. Armstrong, andG.E. Qumby. 4 Arch. Environmental Health 11. 76-79 (July, 1965). The excretion of DDA (dichlorodiphenyl acetic acid) in urine by people in various dietary, environmental, and occupational exposure groups with regard to DDT contact was determined. The DDA excretion levels tor the general population ranged from below the experimental limit of the analytical method (0.02 ppm) to 0.35 ppm. Of the 79 samples m this group which were tested, 56 (74fa) did not contain detectable quantities of DDA. There was no indication that any important difference m DDA excretion level existed among the general population, meat abstainers, or people with heavy environmental or light occupational exposure. However, striking differences in DDA excretion exist for groups with widely different degrees of exposure. A more sensitive method for determination oi DDA excretion levels in urine is needed, since the present procedure gives values below tr.e limit of sensitivity for about three fourths of subjects from the general population group. There are 11 references. -- Authors summarv 881 Organic Pesticides and Water Pollution. C.M. Weiss. Public Works 95^, 84-87 (Dec. 1964). The chlorinated hydrocarbon and organic phosphorus insecticides are discussed with reference to their significance in the aquatic environment. The toxic action of these two groups of insecticides in fish is compared and structural formulas are given for some of the more commonly used compounds of each group. Problems such as taste and odor production associated with pesticides in water supplies, their residual life, and their removal are also discussed. - Cond. from Public Health Eng.Absts. 882 Organophosphorus Insecticides and Mental Alertness. W.F. Durham, H.R. Wolfe, and C.E. Qumby. Arch. Environmental Health 10, 55-56 (Jan. 1965). The effect on the mental alertness of cropduster pilots, duster aircraft ground crews and agricultural workers exposed to organic phosphorus insecticides is discussed. A brie: description of the three mental alertness tests used in the study is included. The statistical results of the three tests taken by each occupational group involved and by a control group are presented in tabular form. Conclusions drawn from these test scores and from actual cases of severe organic phosphorus poisoning, two of which are included in the article, indicate that the mental alertness of clinically well worlomen is not modified by exposure to organic phosphorus insecticides. There are 16 references. -- Public Health Eng. Absts. 883 Cancers in Mice from Asphalt Fractions. M.H. Simmers. Ind. Med. b Surg. 34, 573-577 (July, 1965). Steam-refined asphalt was separated into, four fractions: asphaltenes, aromatics, saturates, and resins. The method of separation is given. The aromatics and saturates fractions showed essentially all the ultraviolet light fluorescence of the four fractions. These two fractions were pooled and tested for oncogenesis by painting on the skin of C57 black mice. Thir.ty-two per cent of the mice thus treated and coming to autopsy developed cancers. -- Cond. from author's summary INDUSTRIAL DUSTS I__________________________________ 884 Thesaurosis from Inhaled Hair Spray? R.M. Cares. Arch. Environmental Health 11, 80-85 (July, 1965). A case study of so-called pulmonary thesaurosis following occupational exposure to commerical hair sprays is presented. An allergic mechanism or individual idiosyncrasy is possible. The pathology is compatible with a hypersensitivity reaction as seen in other in- 17. 01 132 2827 Industrial Hygiene Digest September, determinate granulomas. Histochemical studies for many other extjrinsic organic and in. i organic agents were negative. The histological pattern seen in this case did not simulate that of naturally occurring granulomas such as Boeck's sarcoid. A causal relationship to inhalation of hair spray cannot be excluded although the rarity of such reactions in the face of widespread use of hair sprays is puzzling. There are 14 references. -- Author's summary 885 A Helium Leak-Detection Method for Respirator Control. I Health Physics H_, 223-224 (March, 1965). H. Flyger. The overall protection offered by a dust mask depends on its intrinsic structural quality, including the efficiency of the canister filter itself, any imperfections in the face- piece and outlet valve, and the unpredictable and variable leakage from its face sealing , surface. An accurate and fast method of estimating this last class of leakage is presented: it involves the use of a gas chamber. -- Public Health Eng. Absts 886 The Tyndalloscope, an Optical Dust Measuring Apparatus with an Electrical Indicator. , J. Stuxe and J. Rzezmk. Staub 34, 366-368 (Sept. 1964). In the West German coal-mining industry, the tyndalloscope has been employed for more than 10 years as a routine dust measuring apparatus. In order to measure and record automatically, a continuously recording, optical-electric dust measuring apparatus i was developed. The construction and mode of operation of this tyndallograph and the problems that had to be solved in its development are reported. -- Public Health Eng. Absts. 887 Energy and Efficiency Characteristics of the Ejector Venturi Scrubber. L. S. Harris. J. Air Poll. Control Assn. 15,302-305 (July, 1965). The scrubbing and pumping actions in the Ejector Venturi Scrubber are two separate phenomenon occurring simultaneously. Each phenomenon requires energy and has efficiency of operation and collection efficiency. These energy and efficiency relationships are discussed and illustrated in the form of numerous graphs. The scrubbing energy requirements and how they vary with particle sizes down to one micron are also discussed and presented m form of numerous graphs. - Author's abst. 888 Maba-Tron Electrofilter. A New Electrofilter with Automatic Cleaning of Collecting and Discharge Electrodes? W. Seidel and W. Kaufmann. Staub 24, 405-407 (Oct. 1964). A new electrofilter which has automatic cleaning of the collecting and discharge electrode is reported. This enables a constant precipitation efficiency to be achieved. With its success in perfect precipitation of difficult dusts such as dolomite and ceramic dusts, metal oxide smokes soot, and salts, even in very low concentrations, high precipitation efficiency remains constant with time. - APCA Absts. 889 An Analysis of Multiple X-Ray Readings in the Diagnosis of Silicosis. H. B. Ashe, D.E. Bergstrom, andE.B. Perrin. Ind. Med, fc Surg. 34. 545-551 (July, 1965). This report presents information on the reliability of chest x-ray survey diagnoses, analyzes intra- and inter-reader variation and assesses the advantages and disadvantages of isix different multiple reading systems. Chest x-rays were taken on 1, 478 granite workers, using 14jcl7-inch film read by three physicians, each making two independent readings. From these data the report shows that on the average a single reader will correctly identify 87% of the positive silicosis cases and at the same time will over-read as false positive 3% of the true negatives. When various multiple reading systems were tested, it was found that one system would increase the yield of true positives to almost 100%, but at the same time 8% of true negatives would be falsely called positive. Another system, aimed at minimizing the false positives reduced these to less than 1% but found only 77% of the true positives. Another system seemed to offer a good compromise by correctly identifying 91% of the true Ipositives and-falsely classifying 2% of the true negatives as positive. Authors' synopsis 18. 01 132 2825 Industrial Hygiene Digest 4 PHYSICAL ASPECTS OF THE ENVIRONMENT September . 1365 390 Respiratory Hazards in Welding. A.T. Doig and P.J.R. Challen. Ann. Occ. Hyg. (London) 223 (Sept. 1964). Available statistical information and moroidity and mortality data on the health oi welders suggests a slightly higher than normal incidence of acute respiratory illness tor the group studied. The hazards associated with nitrogen oxides, ozone, phosgene, metal fume, and the coatings used on welding rods are reviewed. It is concluded that most gas and fume problems in welding can be controlled by efficient ventilation. The potential risk from new materials and new methods of welding are evaluated, and the possibility of chronic and subacute respiratory disease arising from uncontrolled exposure to welding fumes is noted. -- J. Occ. Med. Absts 891 Health and Safety Hazards and Their Control. D.E. Hickish. Ann. Occ. Hyg. (London) 7, 235 (Sept. 1964). Safety and health hazards from welding are discussed in relation to eye injuries, burns, explosions, electric shock, gases, fumes, noise, and ionizing radiation. Indicated as possible sources of ionizing radiation hazard are the plasma jet and the electron beam process (when the potential used is over 30 kv) and radioisotopes used for inspection of welds. -- J. Occ. Med. Absts. 892 Carbon Monoxide Hazard in the CO; Arc-Welding Process. A. J. DeKretser, W.D. Evans andH.A. Waldron. Ann. Occ. Hyg. (London) 7, 253 (Sept. 1964). A higher incidence of respiratory disease was observed among a group of eight welders than among their coworkers in the same work environment. Measurement of carbon monoxide concentrations in the environment indicated the possibility of exposure to carbon monoxide from this process. The finding of slightly elevated blood carboxy-hemoglobin levels which returned to normal after the general ventilation in the area had been improved confirmed that personnel had been exposed. Concentrations for the same individual before and after improvement in ventilation showed a definite decrease in almost every instance. It is unusual even in smokers to find concentrations above 5%. At the MAC of 100 ppm, blood concentrations may be as high as 10% carboxy-hemoglobin. -- J. Occ. Med. Absts. 893 Health Hazard from Flux Used in Joining Aluminum Electricity Cables. J.K. McCann. Ann. Occ. Hyg. (London) 7, 261 (Sept. 1964). .` The active constituents of a flux used in joining aluminum electricity cables are believed to be ammonium fluoroborate, aminoethylethanolamine, and zme oxide. The fume generated by the process using the flux contains ammonia, amine vapor, and fluoride. The complaint elicited most frequently from exposed workers was skin trouble in the form of an eczematous reaction on the hands or face. In addition, chest symptoms occurred in men having asthma or chronic bronchitis. Three men developed bronchitis after working for a prolonged period in a manhole where the presence of high concentrations of fumes were sus pected. Air samples from laboratory tests showed that high value of soluble chloride may exist in the breathing zone of the jointers (cable splicers). It was noted also that the use of paraffin in the flux is thought to be an important factor in the production of skin trouble. -- J. Occ. Med. Absts. 19. 01 132 2823 Industrial Hygiene Digest September, 1365 d<4 Audiometry tn Industry. (East Range Symposium). A.J. Heftier. J. Occ. Med. ", 17-221 (May, 1965). * An audiometer is deceptively easy to operate, and this has led to a completely erroneous belief that a couple of hours of instruction are adequate to train an industrial auciometrtst. The records of the Veterans Administration bear sorrowful testimony to the cost of unsophisticated audiometry. The introduction of trained audiologists to the Veterans Administration saved well over SI million per year in inflated compensation payments due to poor testing, and this does not consider the savings realized by the identification and accurate measurement of claimants who were consciously or unconsciously exaggerating hearing loss. This is not to demand that audiologists trained to the master's or doctorate level be required to serve industry, but it does demonstrate that those charged with the responsibility of per forming the tests be trained to the point that they understand what they are doing and why It also requires that highly competent consultants be used periodically to monitor the efficiencv of the program. The cost of a hearing-conservation program need not be high, but the cost of an inefficient hearing-conservation program is an extravagance that no company car. afford. -- Author's conclusion 895 Principles of Noise Control (East Range Symposium). R. Donley. : J. Occ. Med. 7, 222-226 (May, 1965). A common problem facing acousticians is the widespread impression that noise control is synonymous with noise reduction. This erroneous impression is strongly re inforced by the general advertising of acoustical-tile manufacturers and by the technical advertising of manufacturers of ear protection devices. To the acoustician, however, noise control is no more synonymous with noise reduction than temperature control is synonymous with temperature reduction. Several general methods are used in noise control. These are briefly described with illustrations. Among these control procedures are: (1) Change in distance. (2) Mufflers. (5) Vibration isolation. (4) Damping. (5) Enclosures. (6) Absorption. 896 Noise m Hydraulic Systems. S. J. Skaistis, D.E. Kennamer, and J.F. Walrad. Machine Design 36. 197, 200, 202, 205-206 (Nov. 19, 1964). Sources of noise in hydraulic equipment are identified and their nature is discussed: noise-reduction research was directed toward reduction of such forms of noise energy as spund, vibration, and fluid pulsations: control of noise should start in specification stage of design by selecting favorable pump and motor operating conditions: data for selection are presented in diagrams. -- J. Am. Soc. Safety Eng. Absts. RADIOACTIVITY AND X-RADIATION 897 Radiation.as the Cause of Lung Cancer Amo-y Uranium Miners. J. K. Wagoner, et al. New Engl. J. Med. 73, 181-188 (July 22, 1965). A study of mortality experience was conducted among 3,415 white underground uranium miners, and cause-specific comparisons were made with the general white male population of the Colorado Plateau. A higher total mortality was observed among this group of miners. This ; excess"mortality was attributed to respiratory neoplasms (22 observed as compared with 5.7 expected), violent deaths, particularly in mines and "all other causes"--a reflection of pul monary fibrosis and its sequelae. A study of the quantitative relation between airborne radiaton and respiratory cancer showed that the age-standardized incidence increased from 3. 10 per 10,000 miners per year at the lowest to 116. 12 at the highest cumulative-exposure category. An evaluation was also made of the evidence for a causal relation between airborne radiation and respiratory cancer among uranium miners in the United States. Six circumstances support 20. 01 132 283v Industrial Hygiene Digest September, 1965 such a conclusion: An excessive occurrence of respiratory cancer was observed; a dose-respor.sy relation between airborne radiation and respiratory neoplasms was demonstrated; the excess and the dose-response relation persisted when known confoundfag variables are taken into acco. among them being time since onset of exposure and cigarette consumption: the results were con sistent with observations made in the animal laboratory and among other mining populations un substantial exposure to radioactive materials: the carcinogenic effect of airborne radiation was specific-for the respiratory tract: the pathology of respiratory cancers among uranium miners was unlike that observed among an age-smoking-resident matched control group but was similar to that observed among factory workers exposed to a radiomimetic agent, mustard gas. The implications of the quantitative model are discussed. There are 51 references. -- Authors' summary 8 9b Ammo Acid Excretion in Human Patients Accidently Exposed to Large Doses of Partial.Body Ionizing Radiation- F.M. Cams, M.W. Hendrickson, and J. W. Howland. Radiation Res. 24. 278-291 (Feb. 1965). Six technicians accidentally exposed to partial-body radiation while servicing a Klystron tube at a radar installation were hospitalized for medical observations. Serial 24-hour urine samples were collected and frozen. After thawing, the samples were desalted and analyzed for amino acids by paper chromatography. A qualitative and semiquantitative analysis revealec an increased aminoaciduria with particular abnormality in the excretion of cystine, proline, and tryptophan in four of the six technicians. There are 47 references. -- Public Health Eng. Absts. 899 Chromosome Aberrations in Radiation Workers. A. Norman, et al. Radiation Res. 23, 282 (Oct. 1964). Chromosomes of leukocytes cultured from peripheral blood of 36 radiation workers were studied for aberrations. The workers had cumulative exposures from 1.8 to 97.5 r, with all but 3 over 10 r. The frequency of aneuploid cells, quasidiploid cells, dicentrics, and other exchanges was significantly higher in the radiation workers than in a control group. The medical implications of this increase are still unknown. - - J. Occ. Med. Absts 900 A Miniature Warning Dosimeter. A.R. Jones. Health Physics 11, 363-367 (May, 1965). A warning dosimeter which is small enough to fit inside a pocket is described. The dosimeter provides an audible alarm when a predetermined exposure to gamma-rays has occurred. This level is 0.2 R m a low range version and 0.6r in a high one. In addition an audible indication of exposure rate is given. The performance of the instrument is described and limitations on its application are discussed. Brief operating instructions are included. - - APCA Absts. 901 Radiation Protection Organizations: The Role of the Health Physicist. D. W. Moeller, F.C. Kloke, and T.P. Clavin. Health Physics , 215-222 (Match, 1965). A review of the published literature shows that there are at least eight international, three national, and a dozen Federal and interstate governmental agencies having active programs in the formulation of rules and regulations pertaining to radiation protection. In addition .over 40 professional societies and other groups within the United States have one or more committees active in this field. For the health physicist, such groups represent a resource in terms of consultation and advice, as well as a challenge from the standpoint of keeping abreast of their many activities. Through the periodic preparation of summary reports on the radiation protection issuances of such groups, the health physicist can do much to coordinate those phases of their programs related to his field. Through the Health Physics Society, health physicists, as a group, might also consider assuming a greater share of the responsibility for offering official guidance to some of the committees of the national advisory organizations. The various sub committees of the Nuclear Standards Board are cited as one example in which such action might be undertaken. .. Public Health Eng Absts. 01 132 2831 21. Industrial Hygiene Digest September. 1^65 902 Tests of Potassium Superoxide Canisters in a Small Fallout Shelter. V.L. Brechner, et ai Public Health Repts. 80. 225,232 (March, 1965). . ! Observations in a fallout shelter under conditions of prolonged-occupancy indicate tnat ' considerably larger canisters than the 500,g. containers used in rescue units may be pre. ' ferable (or fallout shelters. A canister of l,250 g. provides a system capable of generating ' oxygen and absorbing carbon dioxide in large amounts and for sustained periods at flow rates of canister circulation of shelter air compatible with the physical labor of operating a blower. In experiments using the 500 g. KO? canister for shelter atmosphere control, concentration o: carbon dioxide and of oxygen was not appreciably affected ring the period of observation In experiments with the l,250g. KOl canister, however, oxygen concentration rose from an initial 18 to 18. T 5 To; carbon dioxide concentration was reduced from 3.55 to 2.5T*. Moreover, the ` operator of the manual blower experienced no syndrome of fatigue; in two experiments with the 500 g. canister such syndromes had occurred. - - Public Health Eng. Absts ENVIRONMENTAL MEASUREMENTS 903 Polynuclear Hydrocarbon Emissions from Selected Industrial Processes. : D. J. von Lehmden, R. P. Hangebrauck, and J.E. Meeker. J. Air Poll. Control Assn. ^_5.306-312 (July, 1965). A number of selected industrial processes considered as potential sources of benzo(a)pyrene and other polynuclear hydrocarbons were surveyed. Polynuclear hydrocarbon emission levels were measured directly for asphalt hot road mix preparations and asphalt air,blowing. Emissions of other pollutants. including particulate matter, carbon monoxide, land total gaseous hydrocarbons were also-measured, and are reported together with pertinent data on process design and operation. Results are discussed with reference to the type of process; the type of equipment used, including control devices; and other factors. The signi ficance of some additional processes as contributors of polynuclear hydrocarbons was examined indirectly by collecting atmospheric samples of polynuclear hydrocarbons m residential areas | in the vicinity of (1) a carbon black manufacturing area, (2) a steel and coke manufacturing area. (3) an organic chemical industry complex, and (4) a residential and small-industry coal burning area. .. Authors' abst. 904 A Method for Checking Instrument Performance at Remote Sampling Sites. G.A. Jutze and R. J. Lewis. J. Air Poll. Control Assn. 15, 323-326 (July, 1965). This paper describes a quality control technique used by the central headquarters operation of the Continuous Air Monitoring Program in an effort to insure valid data production from instruments located at remote sampling stations. 'The procedure consists of preparation of 0. 10 to 2.00 ppm mixtures of sulfur dioxide or nitrogen dioxide in duplicate Mylar bags, each encased in a corrugated paper box. These mixtures are analyzed during makeup to insure duplication. One box is shipped to the field station where it is analyzed on-site. The control T.ixture is. analyzed in the central lab at the same time. Correlation between measurements indicates the usefulness of this dynamic calibration check. The techniques used are described and results of the program are presented. -- Authors' abst. 905 Recommended Standard Method for Continuing Air Monitoring for Hydrogen Sulfide Ultra, microdetermination of Sulfides in the Air. TR-2, Air Pollution Measurement Committee. ;M.B. Jacobs, Principal AuthoT . J. Air Poll. Control Assn. 314-315 (July, 1965). Hydrogen sulfide and other sulfides can be determined in the part per billion range in air if the air is bubbled through an absorption mixture of an alkaline suspension of cadmium hydroxide contained in a macro impinger. Rates as high as 1 cubic foot per minute can be used, or 0. 1 cubic foot per minute with a midget impinger. The concentration of the trapped sulfides is then estimated by the methylene blue method. A colorimetric method and a spectrophotometr y method are described. _ -- Authors' abst 01 132 2S32 Industrial Hygiene Digest September. IJjs 906 Studies on Sulfuric Acid Mist Downwind from a Sulfuric Acid Manufacturing Plant. J.V. Kerrigan and Karel Snajberk. J. Air Poll. Control Assn. IS, 316*319 (July, 19 65 >. 4 -- Air pollution downstream from a sulfuric acid manufacturing plant is compnsec a: two aspects, the amount of acid mist fallout and the concentration in the atmosphere. This investtgation shows that it is desirable to determine each of these by an independent method collection. Pans of distilled water were used to collect and determine the sulfuric acid mis: fallout and an electrostatic precipitator was used to determine the sulfuric acid mist con centration m the atmosphere. The use of Stokes' Law to convert the results obtained by one method to those obtained by the other requires a knowledge of the particle size of the suifunc acid mist droplets. Data presented show that the use of an average particle size can yield a picture of pollution which is in error by many orders of magnitude. The study snows that areas adjacent to a plant may be subjected to fallout of rather large particle size when there are not adequate methods for removal from the emission or byproduct gases. -- Authors abst 907 A Search for Some Nitro-Olefins in Polluted Air. E.R. Stephens and M.A. Price. J. Air Poll. Control As sn. J_5.330-322 (July, 1965). An electron capture chromatographic method of detecting nitroethylene and l-mtro-l- propene was developed and applied to ambient air samples, photolyzed propene/nitrogen dioxiCe mixtures and auto exhaust. No trace of either compound was found in ambient air or in the photolyzed mixtures. The detection limit was estimated to be 1 ppb. A single sample of auto exhaust showed several small peaks which, if attributed to nitro*olefin, would amount to in significant traces. Authors' abst. 908 Remarks About Chemical Methods Used in Aerosol Researches. E. Meszaros. Tellus _16. 469-471 (Nov. 1964). Measurements were carried out to determine the mass-concentration of sulfate and chloride particles in the atmosphere. The identifications were done partly by the so-called single-particle method (gelatine technique) and partly by bulk analysis. Great differences were found between the results obtained bv the two methods, and a possible explanation of the discrepancy is given. -- Public Health Eng Absts. PREVENTIVE ENGINEERING 909 How to Select Safe Lift Trucks. F.C. Schuster. Welding Engr. 49. 55-57 (Nov. 1964). Powering stability, frames, brakes, controls and visibility specifications for safe materials handling are discussed briefly as guide to selection of optimum truck; effects of operator comfort, hydraulic system, guards and safety standards on environment and use are included. .. J. Am. Soc. Safety Eng. Absts. 910 Safety for Lift Trucks. F.C. Schuster. Modern Concrete_28, 49-53 (Nov. 1964). Variations in truck design and size are described that enable proper selection, operation, and maintenance of unit for any job; safety considerations in design and operation. -- J. Am. Soc. Safety Eng. Absts 01 132 2833 23. Industrial Hygiene Digest Septemoer. :^-5 11 1 Chemical Plant Safety -- Insurance Company Viewpoint. J.E. Collier. Chem. Eng. 7T. 207-212 (Oct. 12, 1964). t I Factory Insurance Assn. (FIA) program is developed by giving consideration to guiding principles regarding administration, construction, water supplies, automatic tire protection, drainage, loss minimization, duplication of facilities, equipment and maintenance, process safety, operator training and FIA service. -- J. Am. Soc. Safety Eng. Absts 112 Safety Director's Viewpoint (Chemical Plant). C.F. KorkmasChem. Eng. 7^, 143-145 (July 20, 1964). Top management and engineering contractor must recognize that changes are certain to occur between decision to proceed with project and completion of detailed design; best overa.. project will result if definite system is established to handle these changes and to provide safety reviews while project is in progress. -- J. Am. Soc. Safety Eng. Absts 913 Design Engineer's Viewpoint (Chemical Plant). A. Gilbert. Chem. Eng. 7J_, 147-150 (July 20, 1964). Assembling of all pertinent data for one specific chemical into one report can be termed safety evaluationsafety evaluation considers physical properties, chemical reaction rates, compatibility with other chemicals and materials, toxicity, explosion hazards, reliability of utilities, instrumentation, materials of construction, pressure, temperatures, manpower, in vestment, relationship to other production units, locating facility, and flammable liquid volumes -- J. Am. Soc. Safety Eng. Absts. 914 Responsibility of Top Management to Safety Program. F.A. Walker. New Engl. Water Works Assn. J. 2> 144-149 (June, 1964). Presents a discussion of precautions that can be encouraged by management of water companies to reduce accidents to employees, equipment, and general public; poor safety record of water utilities is noted. - - J. Am. Soc. Safety Eng. Absts 915 Body Currents Measured in Live Line Work, H.L. Rorden, et al. i Electrical World 162, 60-63 (Nov. 30, 1964). i Measurements are reported of eventually harmful body currents experienced by maintenance workers, due to electric fields of live 138 kv or 345 kv transmission lines; various protective measures are suggested. .. J. Am. Soc. Safety Eng. Absts. 916 Safety Considerations in Industrial Use of Organic Peroxides. J.B. Armitage and H. W. Strauss. Ind. Eng. Chem. _56, 28-32 (Dec. 1964). Most organic peroxides are used industrially to initiate free radical polymerizations; types of hazards associated with peroxides are explosion, fire, and toxicity; Frank-Kamenetsky criticality criterion is a dimensionless number which is a function of physical and chemical properties of materials, concentration of material, and temperature and dimensions of assembly tests include self-heating test, drop-weight test, bullet impact test, and laboratory thermal stability test. .. J. Am. Soc. Safety Eng. Absts COMMUNITY AIR HYGIENE 917 How Air Pollution is Detected. M. Clifton. Proc. Roy. Soc. Med. 57, 615-618 (July, 1964). A description is given of the classification of gaseous and nongaseous constituents of air pollution. Some methods for measuring these pollutants are then given. The National survey embraced 150 towns of all sizes throughout England and Wales and provided data on smoke and sulfur dioxide in relation to climate, topography, industrialization, population densitv fuel utilization, and urban development. n_ -- APCA Absts. 01 132 2531 Industrial Hygiene Digest September, 1965 918 Bacterial Emissions from Activated Sludge Units. J.O. Ledbetter and C. W. Randall. Ind. Med. h Sure. 34, 130.133 (Feb. 1965). -- The airborne bacterial counts made on 35 different days exhibit conclusive evidence that the bacterial population of air is increased by passage over an activated sludge waste treatment unit. Despite a rapid die-off of bacteria, an increase in the bacterial population persists for a considerable distance and time. The distance is strongly dependent upon wind velocity. No effects of relative humidity and temperature could be noted in this study. The investigation is being continued with future plans to identify serotypes in an effort to evaluate the health hazard involved. There are 1" references. -- Public Health Eng. Absts. 919 Air Pollution and Disease. B.G. Ferns, Jr., andN.R. Frank. Anesthesiology_25, 470.478 (1964). Atmospheric pollution can be classified under three headings: general, occupational, and personal. The components are complex and variable so that it is difficult to extrapolate the prevalence of disease in one area to that in another unless the two have similar chemical compositions. Significant exposures can occur at work and may produce impairment of respiratory function. It is emphasized that tobacco smoking, and particularly cigarette smoking, is a most important factor in the causation of chronic nonspecific respiratory disease. Much research has been done to elucidate the mechanism whereby such changes are induced but specific answers concerning the mechanisms have not been forthcoming. -- Public Health Eng. Absts. 920 Environmental Changes. Why a Health Concern? M.M. Merrill. Military Med. 129, 1025-1030 (Nov. 1964). While it is somewhat dangerous to attempt to evaluate the relative health significance of the environmental changes occurring today, the author states, that he would guess that the most sizable risks to the population are to be found in air pollution, water pollution, the in creasing use of nuclear energy, and the widespread use of chemicals. These are important because the individual has little if any control over that portion of his environment affected by them. Large segments of the population are at risk. The choice will soon have to be maae whether the man-made environment of the future is to be a rapidly deteriorating one as a habitat for man or whether, through careful management and orderly planning, the world around can retain its quality of promoting healthful and delightful living. If we are to solve these problems, we will need new organizational patterns, new scales of values, and new relationships between government, private enterprise, and the public. Health today is more and more becoming a matter of community hygiene. We are increasingly at the mercy of the environment. We must control the changes that are occurring in a way that will contribute constructively to the health and welfare of our people. -- APCA Absts. 921 Human Cardiovascular Diseases and Atmospheric Air Pollution in Los Angeles. California. J.W.A. Brant. Intern. J. Air and Water Poll. 9,.2^9-231 (April, 1965). Two sets of original source records provided 221,760 measurements from which 66 variables were generated. For both studies a multiple regression technique was used. At mospheric conditions presented a formidable and potentially catastrophic danger to public health in Los Angeles. Partial correlation coefficients ranged from - 0.6639 to - 0.9891. The syetem of atmospheric variables explains to a significant degree variation in the cardio vascular incidence, the cardiovascular admissions into the hospital. The system of variables has a linear effect as proved by the F criterion, also the residuals between actual and pre dicted values of the dependent variable are nonsignificant as proved by the alpha.criterion, meaning that the prediction equation (multiple regression system) is valid. Post-exposure to atmosphere, in this instance 4th week post-exposure, is a significant consideration when evaluating the effects of atmosphere upon human health. There are 38 references. -- APCA Absts. 25. 01 132 2835 Industrial Hygiene Digest September. ! 3^5 A Dynamic Air Resource Management Program. City of Chicago. J.V. Fitzpatrick and A.N. Heller. J. Air Poll. Control Assn. 15, 297-301 (July, 1965). """ A review of air pollution control activities since 1881, and the current needs to c.-.ar.se from a smoke abatement to an air resource management program are presented. The rapid 1 and dynamic transition made by the City of Chicago since 1962 in its air pollution control activities are explored in terms of organizational changes, training of professional and 1 nonprofessional personnel, ambient air quality measurements, emission inventory of commer-.ca; and industrial operations directed toward issuance of certificates of operation, evaluation of health effects and materials damage, modifications to the municipal code, and the interrelation ship oi air pollution control activities with urban planning and the regional complex. The muitidiscipime Public Health Service, Division of Air Pollution, Technical Assistance program initiated in October 1962, and planned for a period of five years is discussed. The achievements, particularly since 1962, m the many faceted Chicago air resource management 1 program together with some of its long-range plans are delineated. -- Authors abst li i Catalytic Combustion of Atmospheric Contaminants Over Hopcalite. J.C. Christian and i J.E. Jonnson. Intern. J. Air and Water Poll. 9, 1.10 (Feb. 1965). Catalytic combustion studies showed that Hopcalite, an unsupported copracipitate of ; copper and manganese oxides, provides substantially complete oxidation of vapors of several types of hydrocarbons, oxygenated compounds, nitrogen compounds, and halogenated com ' pounds at about 300*C. The lower-molecular-weight hydrocarbons proved resistant to oxidation; methane was oxidized only to the extent of 30% even at 400*C. The organic nitrogen compounds produced the theoretical amount of carbon dioxide as well as appreciable amounts of nitrous oxide (NjO). Ammonia produced 70% nitrous oxide at 315*C., and about 2% nitrogen dioxide (NO?). The decomposition of organic halogen compounds ranged from slight in the case of : Freon-12 to virtually complete for methyl chloroform. In addition, new organic halides were formed by the oxidation of methyl chloroform and Freon-11. There is at least partial retention ! of halogen on the catalyst when Freon-114B2 and Freon-11 are decomposed. Aerosols of ! dioctyl phthalate, a hydrocarbon-type lubricating oil, and a triaryl phosphate ester lubricant : were quantitatively oxidized by Hopcalite at 300*C. There are 18 references. - - Public Health Eng. Absts 924 Preventing Air Pollution by the Catalytic Combustion of Industrial Waste Gas. C. Jungst. 1 Fette, Seifen, Anstnchmittel 66, 349-352 (1964). Mercaptans decompose in air at lower temperature (250* instead of 950*) in the presence of palladium, platinum or metallic oxide catalysts. The catalysts are prepared so that they have a large surface area. Their activities at 250*, 300* and 350* with various rates i of gas flow have been studied. The critical rate of flow, when practically all the mercaptan ; burnt away, was similar at all these temperatures. The apparatus consists of a heat ex- i changer which raises the temperature of the incoming gases, a regulator and heater which raises the gases to the required temperature, and beds of catalyst. The poisoning and regeneration of catalysts has been studied. The method of calculating the cost of purifying gases with this ; apparatus is given. -- Public Health Eng. Absts. MANAGEMENT ASPECTS "`-5 ' The Alcoholic in Industry and the Role of the Personnel Specialist. Cornell University Seminar. , New York State School of Industrial and Labor Relations. Conference Notes, ilnd. Med. 6 Surg. ^4, 571-572 (July, 1965). In an all day seminar (January 14, 1964) sponsored by Cornell University, 20 Personnel Specialists from diverse government, financial and industrial organizations critically examined . some of the issues connected with alcoholism and occupational health. In general, the conference 26. 01 132 283o Industrial Hygiene Digest September. 1965 participants confronted many of the unspoken, but real, problems which plague company-based alcoholism control programs. The conference focussed on the policy aspects of an effective program. There was considerable disagreement over whether an effective program needed the general approval of top management. Management tends to be problem-oriented. Therefore, a policy in this area should aim at solving a management problem. Hence, the major elements of an effective policy include: (1) Realization of the need by top management for some consistent action. (2) Recognition of alcoholism as a disease, with the caveat that the policy is designed only to treat problem drinking not social drinking. (3) Provision for early identification. (4) A stress on rehabilitation--a positive approach and not a witch hunt. (5) Laying of the ground work for constructive coercion. (6) Provisions for periodic reevaluation of results. {') Modification of other policies such as major medical or sick leave. It was the consensus of the meeting that a unique alcoholic policy was necessary-- one that was separate and distinct from the general medical health program of the organization. 926 Reaction of Supervisors to Emotionally Disturbed Employees. A Study of Deviation in a Work Environment. H.M. Trice. J. Occ. Med. 7, 177-188 {May, 1965). Despite the advantages of focusing on man-boss relations as a source of data in deviancy studies, it has rarely been done. The current study attempts this by using job supervisors of diagnosed alcoholics, psychotics, and neurotics as subjects. The study included, for com parative purposes, bosses of a representative sample of supervisors of "normals." An exploratory study provided the raw materials for a structured interview. By responding to this, the subjects generated the study data. In addition, company personnel representatives estimated change and visibility aspects of jobs occupied by diagnosed employees. Chi-square- type measures determined whether there was association between types of employees (alcoholic, psychotic, neurotic, and "normal") and variables such as boss and task changes, social visibility, supervisor ratings, definition as a problem, inclination to take action, inclination to use the medical department program, and various "blocks" and "pushes" to use the medical department. In addition, a criterion of response to therapy permitted an assessment of association between boss attitude toward the medical department program and response to therapy. -- Cond. from author's summary ACCIDENTS AND PREVENTION 927 Traumatic Aneurysm of the Axillary Artery: A Golf Hazard. J. Rosensweig and M. A. Simon. Can. Med. Assn. J. 93, 165-167 (July 24, 1965). A unique case of post-traumatic axillary artery aneurysm following a violent golf stroke is reported and the probable mechanism of injury is described. The lesion was success fully treated by aneurysmectomy and reconstruction of the axillary artery. -- Authors' summary 928 Injury Produced by Seat Belts. Report of Two Cases. P. Fisher. J. Occ. Med. _7, 211.212 (May, 1965). Severe and nearly fatal injuries resulted from the trauma of moderate collision in a per son wearing a 3-point combination diagonal and lap belt. It does not reasonably follow that the use of restraining devices should be discarded because they can cause injury. This blanket con demnation is favored by those who are uniformed or do not choose to use seat belts. The prime purpose of a restraining device, to minimize injury, may have been served. Perhaps the case described in this report indicates some flaws in the diagonal-lap belt combination, with which all the forces center themselves at one point of greatest strain. Evidence already considerable and further presented here suggests that abdominal complications occur with wearing of the lap belt too high on the abdomen. The passenger in question, short and obese, did in fact always wear it high. Probably best is the full shoulder harness restraint, which distributes the forces of collision more evenly. We now need better, safer automobile design to enable proper in stallation of suitable restraining devices. -- Author's discussion 01 132 2837 27. ( Industrial Hygiene Digest INDEX September . 155 Accident(s) golf hazard injury from seat belts 927 928 Aerosbl(s) chemical methods used m researches 908 Air analysis checking instruments at remote sites i Air and water pollution control L'SAF Fourth Annual Bio-Environmental Engineering Symposium(bk. rev.) 904 830 Air pollutants nitro-olefins polynuclear hydrocarbon emissions from industry 907 903 Air pollution a health concern and disease bacterial emissions from sludge units cardiovascular diseases control catalytic combustion of waste gases Chicago oxidation of contaminants over Hopcalite measurement(s) detection of constituents 920 919 918 921 924 922 923 917 Alcoholism role of personnel specialist 925 Allergy(ies) insect stings 861 Alphaz'urine 2 G anaphylactic death from 1 Asphalt cancer in mice from 876 883 Audiometry in industry 894 Aviation heart disease among pilots 848 Benzene hexachloride(Lindanc) aplastic anemia from 879 Book) s) directory of safety and construction codes 827 guide for grading eye irritation by hazard ous substances 831 installation(s) of bulk oxygen systems 828 sprinkler systems 829 Occupational Health Practices--Iron and Steel Industry _ 8 33 Progress in Chemical Toxicology 834 28. Book(s) continued Steel Mill Ventilation L'SAF Fourth Annual Bio-Environmental Engineering Symposium. Water and Air Pollution Control Burns mesh skin grafting treatment with oxygen bandage and asiaticoside Cancer from asphalt fractions lung among uranium miners experimental in hamsters Carcinogens dimethylnitrosamme motor engine oil additives synergism among oral Cardiovascular diseases effect of air pollution in Los Angeles Chemical toxicology progress in (bk.rev.) Chicago air pollution control Chromate) s) histopathologic effects Cold(s), common cultivation of virus in organ cultures PDA (Dichlorodiphenyl acetic acid) excretion levels Dermatitis, dermatosis(es) cutaneous carbohydrate studies from prairie crocus in miners from a rare beetle lincomycin therapy sensitivity m atopic dermatitis synthetic oil of mustard Dichlorodiphenyl acetic acid (PDA) excretion levels Dimethylnitrosamine liver tumors in hamsters Dust collector!s) collection Maba-Tron Electrofilter Dust counting, determination tyndalloscope with electrical indicator Ejector venturi scrubber energy and efficiency 01 132 2S35 .$52 3 30 5t>7 366 33 3 347 33 3 375 363 369 921 834 22 572 346 380 858 860 862 865 864 859 880 375 888 886 33 7 Industrial Hygiene Digest September. 13e5 Electric body currents in live line work Emphysema experimental Environment a health concern 915 851 920 Industrial medicine employee health services m hospitals human factors Insecticides comparative hazards from effect on mental alertness excretion levels of DDA 53? 3-3 ail ggc Eye contact lenses and the railroad industry 844 Eye irritation guide tor grading by hazardous substances (bk.rev.) 831 Insects serum sickness after bee sting sting allergy Iron and steel industry occupational health practices (bk. rev ) 863 Sol 833 Fallout shelters tests of potassium superoxide canisters 902 Leukemia causes of death in acute 34 Filter(s) Maba-Tron Electrofilter 888 Fire installation of sprinkler systems (bk. rev.) 829 Gas(es) cleaning with ejector venturi scrubber 887 Grip measurement in pre-placement evaluation 839 Gynecologic disease relation to environment 841 Hair spray thesaurosis from 884 Lift trucks how to select safe safety for Lindane(benzene hexachloride) aplastic anemia from Los Angeles cardiovascular diseases from air pollution Low-back disc surgery Mercury pulmonary retention and excretion of vapors Health education in industry examinations grip measurement improvements in outpatient department 837 839 838 Hearing loss audiometry in industry 894 Heart disease among aircraft pilots clinical management of refractory 848 847 Mesh skin grafting Motor engine oil additives carcinogenic action Mycobacterial skin tests Nickel studies of carcinogenesis Nitro-olefins in polluted air Hepatitis from contaminated food Hexachlorophene soaps effects on bacterial counts Hopcalite oxidation of atmospheric contaminants Hydrofluoric acid treatment of burns Hydrogen sulfide standard method of air monitoring Noise control and reduction 850 in hydraulic systems principles and procedures 856 Obesity the overweight problem 923 Occupational health practices iron and steel industry (bk. rev.) 871 Ophthalmology contact lenses in the railroad industry 905 Oxygen, installations of bulk systems (bk.rev.) 29. 01 132 2833 30 a 10 879 921 851 873 867 868 845 874 907 896 895 840 833 844 828 Industrial Hygiene Digest September, i-er Peroxides safety considerations in industrial use 916 Tnphcnylmethane dye (alphazurine Id anaphylactic death from -*e Pesticides *acer pollution from Tuberculosis SSI mycobacterial skin tests 695 Phosphorus safe nandimg Uranium 870 lung cancer among miners 90? Psychiatry for !smaii industries 842 Psychology reaction of supervisors to emotionally disturbed employees 926 Radiation (ionizing, nuclear, x-rays,etc.) amino acid excretion In patients chromosome aberrations in workers miniature warning dosimeter role! of health physicist 898 899 900 901 Respirator(s) helium leak-detection method 885 Safety chemical plant design engineer's viewpoint insurance company viewpoint saiety director's viewpoint directory of safety and construction codes (bk.rev.) responsibility of top management 913 911 912 927 914 Seat belts injury produced by 928 Ventilation steel mill (bk. rev.) s32 Waste disposal bacterial emissions from activated sludge units s Water and air pollution control USAF Fourth Annual Bio-Environmental Engineering Symposium (bk. rei .) ;30 Water pollution effects of pesticides 861 Welding carbon monoxide hazard in arc-welding hazards from aluminum flux health and safety hazards respiratory hazards 892 893 891 890 Women gynecologic disease and environment 841 Wound infections epidemic of streptococcal 954 Silicosis analysis of multiple x-ray readings 889 Smoking histologic changes m esophagus 852 Soaps effects on bacterial counts 856 Streptococcal wound infections 854 Styrene pulmonary vapor retention 877 Sulfuric acid mist from sulfuric acid plant 906 Tension myositis 843 Tetanus-Diphtheria toxoid reactions to 855 Thesaurosis from inhaled hairspray 884 Trauma golf hazard tension myositis " 927 843 30. 01 132 2840 Indu s trial HygieneDigest ADDRESSES OF JOURNALS ABSTRACTED September, l Air Eng. Air Engineering Business News Publishing Company 450 West Fort St. Detroit, Michigan 4822b Am.J. Clin. Pathol. American Journal of Clinical Pathology Williams & Wilkins Company 428 East Preston St. Baltimore, Maryland 21202 Am.J. Surg. The American Journal of Surgery The Reuben H. Donnelley Corp. 466 Lexington Ave. New York, N. Y. 10017 Anesthesiology The Journal of the American Society of Anesthesiologists, Inc'. 3 Penn Center Plaza Philadelphia, Pa. 19102 Ann. Occ. Hyg. (London) Annals of Occupational Hygiene British Occupational Hygiene Society London, England Arch. Dermatol. Archives of Dermatology 535 North Dearborn St. Chicago, 111. 60610 Arch. Environmental Health Archives of Environmental Health 535 North Dearborn St. Chicago, 111. 60610 Brit, J. Cancer British Journal of Cancer H. K. Lewis ! Company, Ltd. 136 Cower St. London WC1, England Brit. J. Dermatol. British Journal of Dermatology H.K. Lewis fc Company, Ltd. 136 Cower St. London WC1, England Brit. Med. J. British Medical Journal Tavistock Square London WC1, England Can. Med. Assn. J. The Canadian Medical Association Journal 150 St. Ceorge St. Toronto 5, Canada Chem, Eng. Chemical Engineering McCraw-Hiil Book Company, Inc. 330 West 42nd St. New York, N. Y. 10036 Chem. Eng. News Chemical & Engineering News 1155 Sixteenth St. , N. W. Washington, D.C. 20036 Chem. Eng. Progr. Chemical Engineering Progress 345 East 47th St. New York. N. Y. 10017 Electrical World McCraw-Hill Book Company, Inc. 330 West 42nu St. New York. N. Y. 10036 Fette, Seifen, Anstnchmittel Industricverlag Von Hernhaussen KG Hamburg 11, Germany Health Phys. Health Physics Pergamon Press, Inc. 122 East 55th St. New York, N.Y. 10022 Ind. Eng. Chem. Industrial it Engineering Chemistry American Chemical Society 1155 Sixteenth St. , N.W. Washington, D.C. 20006 Ind. Med. & Surg. Industrial Medicine ! Surgery P. O. Box 306 Miami, Florida 33144 Intern. J. Air and Water Poll. International Journal of Air and Water Pollution Pergamon Press 122 East 55th St. New York, N.Y. 10022 J. Air Poll. Control Assn. Journal of the Air Pollution Control Association 4400 Fifth Ave. Pittsburgh, Pa. 15213 J. Am. Med. Assn. The Journal of the American Medical Association 535 North Dearborn St. Chicago, 111. 60610 J. Am. Soc. Safety Eng. Journal of the American Society of Safety Engineers 5 North Wabash Ave. . Chicago, 111. 60602 0131. 132 284j tndustnal Hygiene Digest September. 1465 J. Invest. Dermatol. Journal oi investigative Dermatology Williams it Wilkins Company 42a, East Preston St. Baltimore, Maryland 21202 J. Natl. Cancer Inst. Journal ol the National Cancer Institute Superintendent of Documents Government Printing Office Washington, D C. 23025 J. Occ. Nled. Journal of Occupational Medicine Hoeber Medical Division of Harper it Row Publishers 2 Park Ave. New York, N. Y. 10016 Laval Med. Lavai Medical Faculte de Medecine, Universite Laval Quebec, Canada Machine Design Penton Publishing Company Penton Bldg. Cleveland, Ohio 44113 Radiation Res. Radiation Research Academic Press, 1m. New York. NY. 10003 Safety Maintenance Alfred M. Best Company, Inc. Best Bldg. , 75 Fulton St. New York. N Y. 10038 Staub VDI-Verlag GmbH Postfach 10 250, Bongardstrasse 3 Dusseldorf, Germany Tellus Svenska Geofysiska Forenmgen Lmdhagen sgatan 124 Stockholm, Sweden Welding Engr. Welding Engineer Publications, Inc. 4050 N. Milwaukee Ave. Chicago, 111. 60641 Military Med. Military Medicine Association of Military Surgeons of the United States 1500 Massachusetts Ave. , N. W. Washington, D.C. 20005 Modern Concrete Pit it Quarry Publications, Inc. 431 S. Dearborn St. Chicago, 111. 60605 New Epgl. J. Med. The New England Journal of Medicine 8 Fenway Boston, Mass. 02215 New Engl. Water Works Assn. J. New England Water Works Association Journal 73 Tremont St. Boston, Mass. 02108 Proc. Roy. Soc. Med. Proceedings of the Royal Society of Medicine H. K. Lewis ! Company, Ltd. 1 36 Gower St. London WC1, England 01 132 2842 Public Health* Repts. Public Health Reports Department of Health, Education & Welfare Washington, D.C. 20201 Public Works Public Works Journal Corporation 200 S. Broad St. Ridgewood, N. J. 32.