Document wqZDdMMYKL09k9mmQ6Y3rrgkE

FILE NAME: Chemical Abstracts (CHAB) DATE: 1954 DOC#: CHAB037 OCUMENT DESCRIPTION: Abstract Originally Published in 1954 by Knox 1954 14045 13--Miscellaneous Industrial Products 14045 Heinz bodies observed in 35% of the erythrocyteslin;3the Mankiker. Arch. Tnd. Hyg. Occupational Med. 8, 420-35 4 men. Examn. of 36 workers with daily C*H*Nnt ex- (19.m). A study of 329 mica miners, including chem. posures with an av. concn. of 0.54 p.p.m. showed no sig- analyses, dust counts, and phys. examns., showed that the nificant abnormalities. , , c - Campbell rock dust encountered contained from 11 to 67% free SiO,, Experiences with unusual materials ana operations, a medium 42%, and dust concns. varied from 7 to 800 E. C. Hyatt and M. F. Milligan (Los Alamos S a. Lab., Los million particles/cu. ft. of air. Nodular and conglomerate Alamos, New Mex.). Am. Ind. Hyg. Assoc. Quart. 14, silicosis was found in 34.1% of exposed workers, with 289-93(1953).--Problems encountered and control meas- pulmonary tuberculosis in 18.6%. C. L. Campbell ures required are described for operations involving handling Pneumoconiosis in the tungsten-carbide tool industry, of As, AsHi, Ba(NOj)i, H*BO*, Be, Nb, La, Ta, Tl, Thf Uf Report of three cases. Charles VV. Miller, Martin W. chloromaleic compds., Ci.Hj, cyclotrimethylene tnmUamine Davis, Alfred Goldman, and John P. Wyatt (Washington (RDX), tributj: phosphate, and trinitrotoluene (TNT). Univ., St. Louis, Mo.). Arch. Ind. Hyg. Occupational , C. L. Campbell^ Med. 8, 453-65(1953).--Three men processing WC machine Ultra-low-pressure aerosols. Francis A. Mina (Zonite ^ cutting tools developed lung markings and hyperglobinemia, Products Corp., New Brunswick, N .J.). Modern Pack- as a specific reaction to exposures to materials including aging 27, No. 11, 176-8, 242-4(1954).--The crit. relation WC, Ta, Ti, Co, SiC,, A1,0,, and diamond soot. Co is between ale. concn. and amt. of propellent of limited considered the causative agent of the conditions observed, miscibility forms the basis for spraying ale .-based products _ C. L. Campbell to a fine degree of atomization by the use of internally pro---- Fluctuations of breath radon in subjects seated at rest. dueed pressures as low as 11-15 Ib./sq. in. gage. Charts E. J. Martin and J. K. W. Ferguson (Univ. Toronto, Can.), of pressure-temp, relations of varying concns. of Freon 114 Arch. Ind. Hyg. Occupational Med. 8, 574-81(1953).-- propellent in EtOH solns. are shown. Eric Engel Four men with abnormally high Ra burdens were examd. Review of literature on health hazards of metals. I. seated at rest with a breath-sampling app. (cf. C.A. 46, Copper. Sherman S. Pinto. Arch. Ind. Hyg. Occupational c 5100g) in which expired air is collected in a gasometer! Med. 10, 77-8(1954). _ C. L. Campbell transferred to a sample bottle, and the Rn content detd. Destruction of mineral particles and fibers in the lung with ionization chambers equipped with amplifying and after exposure to asbestos dust. J. F. Knox and J. Beattie. counting units. The av. Rn output varied from 0.76 to Arch. Ind. Hyg. Occupational Med. 10, 30-6(1954).-- _ 4 .4 1 X I0 -1*curies/1. of expired air and from 5.98 to 38.1 X Examn. of lungs from 27 cases with asbestos exposures 10"**curies per min. of breathing. Doses of NaHCOj and showed that the greatest portion of particles were in the NH<C1 had no effect on these values, although heavy meals 5 to 25 n range, and that in early exposure an appreciable increased curies/min. in 2 of 3 subjects, and curies/1. in one portion was found above 25 u in length, with this fraction of these. C. L. Campbell decreasing after the 8th yr. following the last exposure. d Appearance of a carcinoma following single exposure to a Hydrothermal treatment of C. L. Campbell refrigeration ammonia-oil mixture. Report of a case and synthetic asbestos. I. discussion of the role of co-carcinogenesis. Michael B. Treatment of the system 2NaF.Ca0.3Mg0.Fej0i.8Si0i. Shimkin (Univ. of California School of Med., San Francisco), Hajime Saito (Yamanashi Univ., Kofu). J. Chem. Soc. A. A Do Lorimier, J. Russell Mitchell, and Travis P. Bur Japan, Ind. Chem. Sect. 55, 415-17(1952).--Fine flexible__ roug'i . Arch. Ind. Hyg. Occupational Med. 9, 186-93 fibers were obtained by subjecting the crystals of 2NaF.- (195-i; - A single exposure to a corrosive mixt. of NH, and Ca0.3Mg0.Fe20>.8Si0i, obtained by the fusion process,^to lubricating oil under pressure was responsible for the de autoclaving at 300-350. T. Katsurai velopment of an epidermal carcinoma within 6 months. Mineral content of the lungs after exposure to asbestos e Previous skin contact with the same agents, the formation J- K-nox an<^) Beattie. Arch. Ind. Hyg. Occupational Med. 10, 23-9(1954).--A study of lungs from 27 cases with histories of asbestos textile exposure for 5 to 33 of a blister, the use of tannic acid and other ointments, the formation of a fistula, and the incision for the initial biopsy are included among the factors suspected as involved. yrs. showed that the mean rate of mineral-matter accu- C. L. Campbell mulation was 0.25 mg./g. of dried lung/yr. As survival Occupational arsenic poisoning. Report of a case, time following the last exposure increased, the mineral Mav R. Mayers (State Dept, of Labor, New York, N.Y.). content of the lung decreased, with variable rates observed. Arch. Ind. Hyg. Occupational Med. 9, 384-8(1954).-- Seventy of asbestotic lesions varied with the sum of the a worker incurring heavv exposures by skin contact, in exposures and survival time rather than with mineral con- / halation, and ingestion of'As in the form of Paris green for tent of the lung. . F ' ^ Campbell 20 yrs. developed gastrointestinal disturbances, exfoliative Some reactions between inert dusts_ and proteins. R. F. dermatitis, trophic skin changes, chronic irritation of the Arch. Ind. Hyg. Occupational Med. 9, 284-90 eyes and upper respiratory tract, and polyneuritis. The (1954). A study of mineral dusts including SiOj, kaolin, symptoms progressed during the 15 yrs. between the last asbestos, anthracite, graphite, Carborundum, slate, lime- -- exposure and death. C. L. Campbell stone, coal, bone ash, cement, bituminous coal, and CaO Aplastic anemia following exposure to carbon tetra- showed that dusts suspended in distd. H ,0 may be coagu- chloride. Bernard Straus (Veterans Admin. Hosp., Bronx, lated by proteins such as gelatin, and bloodserum and egg N.Y.). J. Am. Med. Assoc. 155, 737-9(1954).--There albumin m accordance with the residual charge of the raa- g were 3 fatalities in3 patients with aplastic anemia following tenals. _ _ C. L. Camphell chronic exposure to CCU. In one case overt injury to the Notes on mica-dust inhalation. Harry Heimann (U.S. liver was also sustained. Chronic exposure to CCU may Public Health Service, Washington, D.C.), Samuel Mosko- result in irreversible bone-marrow damage. E. J. V. L. witz, C. R. Harihara Iyer, M. N. Gupta, and N. S. Man- Absence of toxic manifestations in workers exposed to kiker. Arch. Ind. Hyg. Occupational Med. 8, 531-2(1953); -- chlordan. Walter C. Alvarez and Samuel Hyman. Arch. cf. ibid. 8, 420-35.--On a study of 61 workers processing Ind. Hyg. Occupational Med. 8, 480-3(1953).--A study of crude muscovite mica contg. less than 1% free SiO>, only 24 men, aged 21 to 49 yrs., with occupational exposures to minimal lung markings, with no nodular or conglomerate chlordan revealed no evidence of any damage to the liver, fibrosis, were found. Dust exposures included 6-130 million , kidneys, skin, nervous system, and blood-forming organs, particles/cu. ft. of air, av. 40, for sieving or sizing mica n C. L. Campbell splittings; 44-300, av. 135, for pulverizing scrap mica; The engineering and medical control of a lead hazard--a and 2-21, av. 10, for other operations. C. L. Campbell plant study. Clarence C. Maloof, Harold Bavley, and Size determination of silica particles collected on mem- Geo. W. Boylan (Div. of Occupational Hyg., Boston, brane filters. W. C. Burke, Jr. (Univ. of California, L os_M ass). Am. Ind. Hyg. Assoc. Quart. 15, 64-8(1954).-- Angeles). Am. Ind. Hyg. Assoc. Quart. 14, 299-302 The Pb exposures in a plant where 2PbCOj.Pb(OH)j and (1953).--The particle size ranges of air-borne SiOj dust can PbSiOi are compounded into plastic sheets were reduced be detd. by collecting dust on a sampler contg. a membrane from 5.30 to 0.08 mg./cu. m. of air, 3.50 to 1.69, and 0.25 filter, dissolving the filter in an org. solvent such as 60% . to 0.09 by the application of enclosures and exhaust venti Cellosolve and 10% CHjCOCHi, and examg. the suspension * lation. The effectiveness of these measures was demon- m a .turbidimeter. C. L. Campbell strated by medical findings among exposed workers. Silicosis in mica mining in Bihar, India. Harry Heimann C. L. Campbell (U.S. Public Health Service, Washington, D.C.), Samuel Methyl chloride intoxication. Report of fifteen cases. Moskowitz, C. R. Harihara Iyer, M. N. Gupta, and N._S. HowardJjHansen, N. K. Weaver,_and_F, S. Venable (Esso