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It summarizes findings from multiple researchers on particle diameter distributions and concludes that particles over 10 microns are generally of negligible importance, while defining the lower dangerous size limit remains difficult.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/research-report/","Research & 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is dust content in the atmosphere important for public health and industrial safety?","Question",{"text":63,"@type":64},"It helps estimate the extent of hazards in industrial processes and measure how effective protective devices are in mitigating dust exposure.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"What particle size range do most studies report for dust in examined lungs?",{"text":68,"@type":64},"Most particles found in the lungs are reported as under 10 microns in their longest dimension.",{"name":70,"@type":61,"acceptedAnswer":71},"Are dust particles larger than 10 microns considered significant?",{"text":72,"@type":64},"The paper states that, for hard rock dust, particles over 10 microns are of negligible importance, and similar reasoning is assumed by many for other dust 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\n1925  \n# COLUMBIA UNIVERSITY LIBRARIESPRESERVATION DIVISIONBIBLIOGRAPHIC MICROFORM TARGET\n\nORIGINAL MATERIAL AS FILMED·EXISTING BIBLIOGRAPHIC RECORD  \n308Z  \nBox223 Greenburg,Leonard,1892-  \n.…Studies on the industrialdust problem.π.Areviewof the methods used for sampling aerial dust,by LeonardGreenburg,associate sanitary engineer,United StatesPublie health service,Ofice of industrial hygiene andsanitation ..Washington,Govt.print.off.,1925.1p.L,22 p.incl.tables.23=.  \nReprint no.1004 from the Public health reports,v.40,no.16,April 17,1925(p.765-786)Bibliography:p.18-22.  \n1.Dust.  1.U.S.Public health service.Public health reports.Reprini T004.n.Title m,Title:A review of the methods used fo ampingaerial dust.  \n25-26662Library of CongressHD7264.G8 pŁπ     ——    Cepr2      15      AtY ED     \n Reproductions maynot be made without permission from Columbia UniversityLibraries                 \nRESTRICTIONS ON USE:  \nTECHNICAL MICROFORM DATA  \nFILM SIZE:            35mmREDUCTION RATIO:          10:/  \nIIB  \nIMAGE PLACEMENT:IA  \nIB  \nDATE FILMED:                   5-2-97INITIALS:         CB  \nTRACKING \\#:                                                                                             23635  \nFILMED BY PRESERVATION RESOURCES,BETHLEHEM,PA.  \n\n| TREASURY DEPARTMENT  \u003Cbr>UNITED STATES PUBLIC HEALTH SERVICE  \u003Cbr>HItGH S.CIIMMING.SuRCEON GENERAI   |\n| --- |\n| STUDIES ON THE  \u003Cbr>INDIISTRIAL DUST PROBLEM  \u003Cbr>II.A REVIEW OF THE METHODS USED FOR  \u003Cbr>SAMPLING AERIAL DUST  \u003Cbr>BY  \u003Cbr>LEONARD GREENBURG  \u003Cbr>Aaociake Sanftary Engineer  \u003Cbr>United Stales Pubi Health Serric  \u003Cbr>Omee of Indusfrial'Hwoiene and Sanitatiow  \u003Cbr>REPRINT No.1004  \u003Cbr>PROM THE  \u003Cbr>PUBLIC HFALTH REPORTS  \u003Cbr>APRL,17,1925  \u003Cbr>(Pagos 765-T86)  \u003Cbr>WASHINGTON  \u003Cbr>covERNYENT PRINTDSC OFFICE  \u003Cbr>1925   |\n\n308  \nZ  \n(223  \n\n| TREASURY DEPARTMENT  \u003Cbr>UNITED STATES PUBLIC HEALTH SERVICE  \u003Cbr>HUIGH S.CUMMING.SURCFON GENERAL   |\n| --- |\n| STUDIES ON THE  \u003Cbr>INDUSTRIAL DIIST PROBLEM  \u003Cbr>IL.A REVIEW OF THE METHODS USED FOE  \u003Cbr>SAMPLING AERIAL DUST  \u003Cbr>BY  \u003Cbr>IEONARD GREENBURG  \u003Cbr>As8oeinle Saritary Enginrer  \u003Cbr>TInfted Slateg Public Health Serrice  \u003Cbr>Ofce of Indwstrial Hwgiene andSanitatior  \u003Cbr>REPRINT No.1004  \u003Cbr>FROM THE  \u003Cbr>PIIBL.IC HEALTH REPORT  \u003Cbr>APRn,17,1925  \u003Cbr>(Page 765-786)  \u003Cbr>WASHINGTON  \u003Cbr>GOVERNMENT PRINTING OFFICE  \u003Cbr>1925   |\n\n30%Z  \n(223  \nSTUDIES ON THE INDUSTRIAL DUST PROBLEM  \n# II.A REVIEW OF THE METHODS USED FOR SAMPLING AERIAL DUST¹\n\nBy Loonard Greenburg,Assoclate Sanitary Engineer,United States Puble Health Serviee,Ofce ofIndustrial Hyglene and Banitatioa  \nIn view of the injurious effects produced by the inhalation ofcertain dusts,as reviewed by the writer in an earlier paper(1),and ofthe quantitative relation between dust inhalation and disease,itseems evident that a knowledge of the dust content of the atmos-phere is a matter of considerable importance:Such evidence isneeded,first of all,in order to estimate the extent of the hazardinvolved in various industrial processes,and,second,in order tomeasure the efficiency of various protective devices which may beintroduced for the mitigation of the dust hazard.  \nADDITIONAL COPIEsOr TEN PUBLECAToW MAT   r80CU8D raoM霜E PEBNTEYRrsT o DoC  NTGoYE配NMENT F   TTNG orrWA1GT0N,D c.  \n# THE IMPORTANCE OF ANALYTICAL KNOWLEDGE CONCERNING THE SIZEOF DUST PARTICLES PRESENT IN THE ATMOSPHERE\n\nIn a series of very valuable and interesting communications theSouth African workers have shown that practically all of the dustparticles in the lungs examined by them are under 10 microns inlongest dimension.MeCrae(2)digested silicotic lung tissue andexamined the residue microscopically.Regarding the size distribu-tion of particles,he says:  \n▲T5 CENTS PER COPY  \nThe great majority of particles were found to be of indefinite shape and to havea diameter less than 1μ(that is,a diameter less than one-eighth of ","cbCaipgbjqF1Js0f","https://ap.wps.com/l/cbCaipgbjqF1Js0f","pdf",1226170,17,"English","# Studies on the Industrial Dust Problem\n## II. A Review of the Methods Used for Sampling Aerial Dust\n## The importance of analytical knowledge concerning the size of dust particles present in the atmosphere","[{\"question\":\"Why is dust content in the atmosphere important for public health and industrial safety?\",\"answer\":\"It helps estimate the extent of hazards in industrial processes and measure how effective protective devices are in mitigating dust exposure.\"},{\"question\":\"What particle size range do most studies report for dust in examined lungs?\",\"answer\":\"Most particles found in the lungs are reported as under 10 microns in their longest dimension.\"},{\"question\":\"Are dust particles larger than 10 microns considered significant?\",\"answer\":\"The paper states that, for hard rock dust, particles over 10 microns are of negligible importance, and similar reasoning is assumed by many for other dust types.\"}]","Studies on the Industrial Dust Problem - II - A Review of the Methods Used for Sampling Aerial Dust | PDF",1789970489,43]