Document 9JZMrKNq7vxM6EBbbvqyLN6RD

SpffllflK -V`tHvi'Tvi'.V%r>. >-*^j=^-'_ raakNc-.'-'-'-iS*" TCffiilyBlGCTI , ---*# *XT^****. i.< * "-f-t .*-. '-VV-V '-S r.*-.-* r* March, 1947 Vol. XI ' Ko* 3 Industrial Hygiene Foundation 4400 Fifth Avenue r Pittsburgh 13, Pennsylvania' INDUSTRIAL HYGIENE DIGEST - Literature and Herrs . News Items 245 Industrial Health. Sopcir,lists to Meet ir. Buffalo. ~ - Professional personnel in Industrie! health work will's ssemble at ' - _the Hotel Statlcr, Buffalo, N.Y., April 26 through May 4. The meeting comprises the 32nd annuel gathering of the AMERICAN ASSOCIATION OF INDUS TRIAL PHYSICIANS AND EUF.CIDNS; the 9th. annuel conference of the AMERICAN - CONFERENCE OF GOVERNMENTAL INDUSTRIAL HYGIENISTS: the 8th annual meeting ' . of the AMERICAN INDUSTRIAL HYGIENE ASSOCIATION: the 5th ennuel conference of the AMERICAN ASSOCIATION OF INDUSTRIAL NURSES, and the 4th ^nrn.1 meet-1 ing of the AMERICAN ASSOCIATION OF INDUSTRIAL DENTISTS, The sessions Till "he replete rith new subjects of interest, including, .round table diacus- sions for chemists, engineers, physicians and nurses; a symposium'on developments in industrial hygiene; a discussion of state codes and. indus trial hygiene administration; conferences on- environmental control and " analytical procedures; clinics on fractures, and traumatic surgery, includ- . ing a symposium on back problems; hazards incident to the use of the atomic bomb, etc. (Copies of the preliminary program may be secured-from Indus- - trial Hygiene Foundation or from Dr. Edward C. Holmblad, Managing-Director of the ibcericgn-Assoelation of Industrial" "Physicians and Surgeons, 28 East Jackson Elyd., Chicago 4, Illy___ V . t 246 Occupational Pipage CUrrfe Established in Pittsburgh. Thb School of Medicine, University of Pittsburgh, announces the es tablishment of an Occupational Disease Diagnostic Clinic by the.Department of Industrial Hygiene at the Falk Clinic, Pittsburgh, at 9:00 A.M. each Saturday. This clinic is for the study of diseases whose etiology -is as- .sodoted with industrial environment. It is opea to cases referred by ~ physicians for study and diagnosis only* Reports of findings rill be trans- mitted_upon. completion of study to the referring-physician. .Opportunity must be cfforded in all cases for a study of the individual.job or process by industrial hygiene personnel. Fees only for the laboratory work neces-^ _ sary or hospital expense when deemed advisable rill be charged. . .This -- _ - ~ clinic rill provide f ocilitias for graduate-students .in .industrial medicine rho ore enrolled in the' School, of Medicine. V"\ ..... *.*. jpo'ustrtal Hygiene.-Direst.-. ?.?--. " .' . :: .. : j .- March. iQdj - .327 Asbestos Dust. ~ Anon. Safety Rev. (tf.S. Navy), , IS (Jan.-, 1947) " ' '* '*- -....The brief article cadis attention to the hazard of exposure to asbes-* _* toa dust and. t^a need of-adequate localised ventilation. All working places with possible exposure should be checked for asbestos dust, and where-. - mechanical exhaust ventilation oust- be supplemented by wearing of personel protective equipment, it .should conform, to. Bureau of Hines specifications. -* 228 _ ~ -- Air-Operated, vem.Dum)B Cvridg'wU.h Safety.' ' . ` - . Anon* Compressed Air Hag., Jj2, 49 (Fob.1947) 1 - . .At the Kerr-Addison Hill- in Virginiqtown, Ontario, cans of cyanide to ^ be used*in the extraction of gold.from ores, are handled mechanically by a ~ systen that is completely.'inclosed and controlled from the outside. Except for loading and unloading, the operation-is automatic. After a can has -- . . been placed on the skip and the chamber has been closed, it is hoisted by an air cylinder." At-.the limit of its travel it is tripped.and its contents are dunped-into the hopper of a reagent feeder: that`discharges into condi- tioner^tanks.Reversal of the piston stroke returns the skip to the" '* starting position; but-before the empty i3'replaced by a full container, ~ tha fumes and dust in the enclosure are exhausted to the atmosphere." .Thus hand dumping with its attendant skin rashes are avoided. . Diagrams are . presented-. 7 -- ' ' .* ~ ."I-;. "* ` - 529 Dust Control Lessors from Fnntcny Dnr.F.H. Chirico. - ; - Occ. Hazards, 2b 24-25 (Feb.-, 1947) . i * 'r-V-- Certain features -of the dust control system introduced during the 1 construction of Fontana Dam in North Carolina were hot only unique but because of their extreme effectiveness in curtailing hazards have become a pattern, for- the- industry. The most radical of those features'was a - : mechanical water spray mounted on the frames.of the electric shovels, . continuously and thoroughly wetting the rock. This, process reduced dust concentrations to averages of 1.4 to 2.7 M.P.C.F., and was much more efficient, than intermittent hand wetting-. It was also unnecessary to-set the rock during crushing--a point at which hand wetting has been found undesirable. .Elimination of dust fog. also increesed night vist- . bility. - Other dust-reducing features included wet drilling, efficiently designed ventilation systems, total enclosure-of Indoor screens, with self-closing doors t top and skirt-board coverings-at transfer and dis-'-- charge points, dust-tight manholes, counterweighted hinged covers on chutes, discharge of the dust collector effluent through high stacks, and the installation of water sprays with conveniently located shut-off valves. Specially designed ejector ventilation systems were installed . - in the cement unloading plant, supplying clean air to the workers and removing the cement' dust which was subsequently collected-.- An average of less than 10 M.P.C.F. was attained at that point, less than-five, in ths concrete mixing, plant, end less than four.in the quarry and rock crushing plant. . 330 Report oh.en' Tuvestd wwtlan into Dust end Ventilation Conditions In the - ~ _Copper Mines and fhe Bmy.en._Hill Kino Sn Northern Rhodesia .with parti cular R|aff,-rOTirpr V1 S^lrosls. Da V. Lambrechts. 42 pp. Lusaka: Govt-. Printer.. (1945)- - -* The. emphasis in this report .is upon dust. It is recommended that `-dust: sampling'results form a basis for ventilation requirement3._ Depths