Document nkB455Ow9NYBkEx71mjKE63ba

FILE NAME: &'ZZ&' DATE: DOC#: &' DOCUMENT DESCRIPTION:dWZ&ZZ& U IN L)/-\ 1 I L.Y\ Fwitt.4 .1.. 4 r i monthly nletter 'sawed to gnUt.atr4.11 concerns holding miniDerthiP In Industrial Hygiene Foundation. T. Foundation is a nonprofit association of Industries for the dvanoiment of healthful working conditions. 1Q No. " C \,;) uzust, 1940 ,,p-eLle..---errteneral Motors to Keynote Anneal Meeting Conferences to Include one on Air and Stream Pollution No. 8 M.E. Coyle, Executive Vice-President of General Motors Corp., will deliver .-note address opening the 14th annual meeting of Industrial Hygiene Four.'lation .on Institute, Pittsburgh, on November 17. Mr. Coyle will speak on subjects .d interest to industrial management, as cori.orate activities and their inon the National economy. Besides the main meeting for management representatives, four professional !nces will be held here on November 16----(1) Medical, (2) Chemical & TcxicoL, (3) Engineering and (4) Legal. These round-table sessions are being d by the respective professional committees in the Follndation and the .2.genda announced soon. November 18, the day after the main meeting, will be devoted to a ennn the Air and Water of industrial Communities, with emphasis on air pollue membership voted 3 to 1 in favor of such a conference which in effect will inuation of the mail, meeting. The agenda will cover subjects of interest to uisment and technical representatives. The Medical Conference on November 16, the main meeting on November 17 "air and water" conference on November 18 will all be held in the main .ium at Mellon Institute. The other conferences (November 16) will all be ither at the Institute or nearby at sites to be announced. Hotel reservations should be made now. Both the Hotels Wr.bster Hall and !Y, near Mellon institute, -yrNmIse f'111 cooperation, as do the downtoc.e, nntr`l, Pittsburgh Convention Burea,. More details later I-H-F in American Can Company's Annual Report The 47th annual report of the American Can Company, a Fc,endation member, as the following: 'With the assistance of Industrial Hygiene Foundation of America, wnich is 1 in the Mellon Institute in Pittsburgh, a survey was conducted of the Clmpany's L program for employees. The purpose of this survey was to determine whys where- r' mpany's already comprehensive medical program can be made more effective." ) (Editor's Note: rOurqOATion, The Foundation is now engaged in four other such studies dealing with medical Eiministration, ceflt and prczedure.) November 1', 27, 10, -- .no rtrr- vt .... .tk . Al Hygienc Digest - 15 Auizuct. 1q49 ) However, grzat care should be taken to exclude the tuberculous in select- ,' ing persons to receive aluminum therapy, (4) It is not believed that a scientifically controlled experiment in industry is feasible for the evaluation of aluminum for the prophylaxis of silicosis. This follows from the uncontrollable variables inherent in the industrial situation and other factors which have been discussed. For these reasons, it appears, improbable that any research agency would consider it advisable to under- take such a project except under special conditions already discussel, and which may not be attainable. (5) The McIntyre Research Foundation, as presently organized, is not equipped to solve the aluminum prophylaxis problem in relation to silicosis. The steps considered necessary to accom- plish this objective are outlined. (6) Research should be continued with laboratory animals with the object of finding a more adequate basis for application to man. Such study is now included in the program of the Saranac Laboratory of the Trudeau Foundation. -- Authors' Summary . .36 Effects of Electricity on the Human Body. W.B. Kouwenhoven. Ind. Med. 18, 2o9 (July, 1949). The author discusses briefly the various effects of electricity on the body, including variations with the amount of current. The current values of interest are: (1) threshold of feeling, about 1 milliampere, (2) let-go current, above which it is difficult to let go of a wire, about 9 milliamperes for men, 6 for women; (3) current producing ventricular fibrillation, 0.1 ampere; (4) current producing a block in the nervous system, one ampere or more; and (5) the counter shock current. The last three result-fin death if prolonged; otherwise artificial respiration may save the victim. These effects refer to alternating current of commercial frequency. Direct current is much less harmful. The only effect of high-frequency currents is heating. 67 Asbestosis and Cancer of the Lung. Editorial. J.A.M.A. 140, 1219-1220 (Aug. 13, 1949). Records of English, American and German physicians and The Annual Report of the Chief Inspector of Factories in England for 1947 sho-.: that the occurrence of cancer of the lung is related to pulmonary asbestosis. This relation is supported by the following observations: (1) The incidence rate of cancer of the lungs in asbestosis patients is 10 to 15 times as high as among the general population.(2) The male-female ratio is more nearly equal than it is for the general population, which indicates that an environmental and evidently occupational carcinogen tended to equalize the incidence rate of cancer of the lungs for both sexes. Recent experimental observations support this interpretation of clinical evidence. Cherges in the Lungs Produced by Natural Graphite. H.E. Harding and 0.3. Oliver. Brit. J. Ind. Med. o, 91-99 (April, 1949). A brief description is given of the industrial uses of natural graphite, which is a crystalline carbon mixed with up to 10% of free silica and with other minerals. The greatest dust risk occurs in the grinding of natural graphite, for which evidence is presented to show that this can lep.d to