Document 06nyy1vmy2J4xnM6DEMe349DM

(* Data on man screening for tuberculo sis and missed cases are presented in Abst. No. 952. Information on the smoking patterns of Canadian university students is given in Abst. NoT356. ?'.. :. A report on tha pathologic effects of smoking tobacco on the- trachea and bronchial mucosa is the subject of 'Abst. Nd/958. r ' * "*?**' ... Sm Abst, No* 963 for a discussion of Rubber glove dermatitis. - --- . .................. . Consult Abst. No. 965 for the manage - -^haantof extensive cutaneous burns. _*^-;-Two yaars^exgerience in a Canadian- v ^3`poiabacontrialvCente r ia die theme- pB-T t" ' Absti: N<fe>966v. "'i-.v.: . . -v Informatfet oh an automatic hydrogen - - flnoridericordsr for induatrial bygfime*, / ^^mid^stack^monltoring is given figAby'' ' 1UO kUXIClby Ui U1 UlUUCQiUaUlU considered in Abst. No. 977. Abst. No. 979 ia c togenetic study of|i pneumonitis. -, Hypertensian. amorphous with ahis-. '' _ Factors to .be- cJoi- *n s sid--ere- -d-' discharge electrode precipitators No. 985. Is humidityImport tore comfort rr^^ --- v* * The topic' of -j Abst.. No;9T3 is concerned wilha sur vey of resultr of investigations oh some - organic mercury compounds used 'as-''"' fungicides. . ---? For odor del air pollutions 1008. oundation Pacts NEW MEMBERS OF I-H-F. The Foundation welcomes to members' Autometric Corporation Van Straaten Chemical Company SILVER ANNIVERSARY MEETING THIS MONTH. The immediate response'to the invitations for our 25th Annual Meeting which will be held here at Mellon Institute, Pittsburgh, on October 26-27, has been most gratifying. We trust that every member company will be represented at these conferences and are confident that those in attendance will find the meeting both profitable and interesting. TWO NEW REPRINTS. "Chronic Interstitial Pneumonitis. A Histogenetic Study", by Paul Gross. Arch. Pachoi. 69, 706-7 15, (June 1960); and "The Pulmonary Response to Tuberculin", by Paul Gross, M.L. Westrick, and J. M. McNerney. Arch. Pathol. 70, 233-243 (August 1960). These reprints are available from the Foundation upon request. Industrial Hygiene Digest October, 1960 961 On a Case of Rapiciv Evolving Silicosis. S. Miii;ic and Vida Miletic. Med. lavoro 50, t~9-bh2 (Nov. i 959). Italian. A case is reported of rapidly evolving silicosis in a 25-year-old worker who was employed for 13 months in the digging of a tunnel for the Mavrovo hydroelectric power station, in the People's Republic of Macedonia. The tunneling was performed by the dry process with no protective measures and it produced a great amount of dust. The rapidity of the onset and the further course of the disease can be explained by the massive inhalation of silica and by a pre disposition to the disease. Such predisposition may be due either to a deficient pulmonary auto depuration or to a particular state of immunological hyperreactivity of the subject as was shown in this case by the behavior of serum proteins. It is concluded that detailed periodical controls with clinical and laboratory investigations of the workers exposed to silicosis hazards may be very useful. -- Cond. from Bull. Hyg. 982 Asbestosia and Lung Carcinoma. 1. 1. A. Bohme. Arch. Gewerbepathol. Gewerbehyg. 17, 384-395 (1959). German. Previous reports in the literature of a lung carcinoma associated with an asbestosis condition, are reviewed and the results collected in a table in .the text. Of a total of 894 tissue specimens examined from cases of known asbestosis, 143 indicated the presence also of lung carcinoma. Using the original groupings, as originally reported, the lung cancer incidence ranged from 15 to 20%. One of these groups is the result of a survey of world literature by Hueper in 1955 where 738 examinations indicated the presence of 143 lung carcinomas or an incidence of 15. 5%. It is noted that contained within this latter large grouping are several small ones where the individual reports would indicate an incidence of 31 to 40%. Asbestosis develops slowly following a long period of exposure, and the lung carcinoma appears to make its appearance in the latter part of this period. The author presents detailed case histories of 6 patients from a group of 62, and later 100 asbestosia patients on whom the author and his associates made studies over the period of 1936-1958. In 4 of the 6 patients a lung carcinoma was shown to exist. The interrelationship of the 2 pathological conditions is discussed briefly. The necessity for good pathological differentiations of the 2 conditions is stressed. - -- APCA Absts. 983 A Routine Sampler for Detecting Variations in the Emission of Dust and Grit. B. Lees and M. C. Morley. J. Inst. Fuel 33, 90-95 (Feb. 1960). The Report of the Committee on Air Pollution, 1954, recommended that simpler standard methods of sampling flue gases to determine grit emission should be devised. The sampler described has been developed for routine sampling on a comparative basis. It is ex" tremely simple, yields consistent results and requires only a few minutes per day for routine control. Its application is described for assessing on a routine basis the efficiency of collection of grits by mechanical arrestors and the performance efficiency of electrostatic precipitators on boilers fired with pulverized coal. -- Public Health Eng. Absts. 984 A Study of the Problem of Particle-Size Measurement. H. E. Rose, Cnem. Ingr. Tech. 31, 183-191 (Mar. 1959). German. The problems of the measurement of the size of particles are considered somewhat^ in relation to the form and other aspects of the particle, but more especially ir. relation to pa* tide distribution. The determination of the average-size particles of a dust or powder sampis discussed according to the following methods: gas permeability, light intensity, adsorpti ^ in a monomolecular layer, reflection, and bulk density measurements. The methods are ^ side red in detail anc several pictures of the various apparatus, or diagrammatic represents ^ of them, are given in the text. Measurement of the particle-size/particle-distribution func - is also discussed under headings of screen or sieve analysis, measurement o: the veioci*> falling bodies, and o: particle size ir. suspension. -- APCA Abs- 18.