Document M4QEjZmM9n4nJLnG0R4V3Z16y

FILE NAME: Hercules Chemical (HERC) DATE: 1947 DOC#: HERC007 DOCUMENT DESCRIPTION: Book Excerpt from Introduction to Industrial Medicine - Industrial Dusts 4 J? Introduction to INDUSTRIAL MEDICINE T. Lyle Hazlett, M. D., Editor Professor and Head of Department of Industrial Hygiene University of Pittsburgh School of Medicine INDUSTRIAL MEDICINE PUBLISHING COMPAQ CHICAGO COPYRIGHT 1947, BY THE UNIVERSITY OF PITTSBURGH SECOND EDITION PRINTED IN THE UNITED STATES OF AMERICA PREFACE Tahecomuarsteeroianl IonfdtuhsistribaoloMk ceodnicsiinstes aotf tthhee lSecchtuoorelsogfiMvenediin of IcnidneusotfritahleMUendiivceinresitiyn soofmPeitdtsebgurergeho.f cToompprleesteennetstshewocuolndtent reexqhuaiursetivae setrreieastmoefnvt owluimtheisn. tIhte iscoimmppaossssibolfe thtoe alettcetmurpest givTehneinletchtuisrecrosuprsaer.ticipating in the course are active work seursbjeinctsthienirthreesbpreicetfievset pfioesldsisb.leTfhoerym hcaovnesisptreenstenwtietdh tchlaerir siteyr.veTahse pboaisnitcs coofndceepptasrtwuirteh fworhitchhethsteusdeelnetctwurheossedeianltemreasyt dtheembarnidesf tgimreeataetr oduertadiilspoofsaplr.esentation than is possible in theThsetudvaelnute's oofwtnhenoletacttiuorness woriilglinbaetinggreaetiltyheernhfraonmcedclabsys dviisdceudsshioenreswoitrh iwndililvaididuailn rgeuaiddiinngg. thTehsetubdiebnltioignrahpishyexpcruor sioBnesytohnrodugthhetihreimlitmereadtuiartee. value, these lectures may be umseeafunsl iassprfouvtuidreed rfeofrertehnecier pmreasteerrviaalt.ionCaosnsweqeluleanstlyf,ortthhies imGmreadteiaftuel caocnkvneonwielnecdegmofentht eisstmudadenet.of the cooperation of tuhpeoncothnetriirbutitmores, waghroe,eddetsopipterepthaeremthaeniyr nporetesssinfogr dpeumbalincdas tion. T. Lyle H azlett, M.D. 84 INTRODUCTION TO INDUSTRIAL MEDICINE Iinngterinpererttartieoanctioofnstheis smigonrieficdainfcfiecuoltf, thbeutdiutstasppcaeuarss tloogirceaml atoinasisnumtheethtiastsudeusstsshwouhlidchbsehocwonasitdeenrdeedncays pthootseentciaalulysinghaarmpfruoll,ifethraotuivgeh rensoptonasse. dIatnigserliokueswisaes leoxgtiecnatl itno tahsesulmabeo, raantodryi,t thhaast bseileicnapmroivxeedd twoitshomane iWneirtht dthuisst bciaoulosgesicaal mmoetdhiofidedofprcolalisfseirfaictiavtieonr,eawchtiiocnh., icnlinaicnalumobbesrervofatiinosntsanacensd, hinadsubsetreinalcosurrrevleaytesd, iwt itihs qodusitetopodsestiebrlme itnoeustheeinptnraepuemriotcoonneiaoltiicnjpeocttieonntiamlietitehs of a dust in a relatively short time, usually 60 days. III. DAe. t eNremceinssaittiyo n of Dusts for D etermination of Concentration B. aCnodrrCeolamtpioosnitwioitnh. P hysical Findings. CD.. SMtaenthdoarddssofofDDetuesrtminineasstiofnosr. Different Conditions. IV. CTohneterloilmoifnaHtieoanltohf dHuasztahradzsarDdsuienvtoolDveusstpsrimarily the con terxoalmoifnadtuiostn ionftwheorwkeorrskiennggaegnevdiroinnmtheentdaunsdtythtreadpeesr.iodical The Pneumoconioses chTarhaectteerrmwhpincehumaroecopnroiodsuecseidncbluydethsethienhlaulnagtiochnanogfedsuosft cohvreornica pdrivoildoengtehdemperiniotod othfetifmolel.owFionrgpcuartpeogsoersieosfbcalsaesdsifuicpaotniotnhewenasthuarlel and Id.egNreoeromfaplaAthvoelroaggye:Lung IIIII.. NNoorrmmaallAAvveerraaggeeLLuunngg4-b-+ IVV.. PPonteeunmtioacloPnnieousemsoconiosis AB.. SAindtehrroascisosis DC.. SAislibceosstiossis INDUSTRIAL DUSTS 85 CVeIr.taPinnecuommomcoonniodsuisstws iathndIntfheecitrioenffects are briefly considered itnhethlieterfaotlluorweimngenptaiognese.d iMn othree gdeentaeirlaeldbiabclcioogurnatsphayr.e available in Pneumoconioses other than Silicosis maTyhevadreygrienesoefvepruitlymofrnoamryainmveorlevepmheangtocinytitcheprponceeussmtoocoanicoosens dseitriioonus ooff mthaerkpendeuamnodcopnrioogseres,ssiisvedufeibtroossiisl.icaSidliucsots.isA, mthoengmtohset soitnhoesriss.arTehaissbleissttoissis,noatntchoramcpolseitse,; soidtehreorsifso,rmalsumexinisotsiws,haicnhd hbayvsenoTt haes yreeatcbtieoennsfutollydsutsutdsieodth. er than silica and asbestos are not ofufnscuticohns.chDarr.acLte. rUa. sGtaordnseerri,ouofslythecoSmaprarnomacisLe atkhee Lraebspoirraattoorryy, hmaoscoinniofascist"sbueggaepsptelidedthtoatstuhceh dceosnidgintaiotinosn. "Asmimopnlge tbheenmignwepnmeauy msideenrtoiosins twhehicchomremsounltsunfrcoommpclaicrbatoend aanndthriraocno.sisWfhroenm, hcooawlevanerd, tihseasemsoudbifsiteadncseilsicaorseis mdeixseigdnawteitdh, oqnuatrhtez btahseisroefsutlhteingeticoolongdyit,ioans anSthinracceoa-ssibliecsotossis iosrtshiedeoron-lsyilisciolisciast.e which is considered to pro duce serious effects, it will be accorded separate treatment. Asbestosis coTmhpearendumtobethrosoef ewxpoorkseedrstoexspiloicseaddutost.asAbefsetwosyeisarssmagaoll Lwanhezna estTimheateeldemtheentnsuomf baesrbetostobse daupsptroaxreiminatethlye 1fo0r,0m00o. f fibers which vfoaurnydintolehnagvthe uap lteong5t0h oorf6200m0 imcriocnrosnasl.thTouhgehsesobmodeiehsavteenbdeetno raerme acianrriinedthbeytethrme idnuasltbcroelnlcshiinotloesthbeutwsaolmlsesoufrrtohuendshinogrtethreonaeisr saplvaecoeslaransdeptthaeraendgitvheeraislevetoolafribsrtorsuics.turTeheisrefinisaltlhyicdkeesntrinogyeodf atnhde rdeifpfluascee,dpweriitbhrofnibcrhoiauls atinsdsube.asaTl.heItfibprroosgisresissesultiinmtoataellly psaeretns aosf tbhreonlcuhnigecttaisssisuem. aWy ibtehisneetnh.e Tfihberroeticis aarethaisckbernoinncghioofletchteaspisleuarnad, 86 INTRODUCTION TO INDUSTRIAL MEDICINE pplaertteicoublalirtleyraitniotnheofbthaesapllaerueraasl,saacn.d, in fact, there may be com anTdhneoat ccthioenmiocfalasabsesintosthies cbaesleievoefdfrteoe bseiliocfa.mIercrhitaantiicoanl nbyatuthree sItfiftfhfeibleernsgitshboelfietvheedftiobeprr-oisdurceedutcheedtitsosuaebionujut rtywion mthiecrodinsse,asites. irrIintatainffgecqtuedaliltuyngissdaessbtreosytoesd.bodies are found in both diseased aennddshwehailcthhygiavreeathse. mTahedyumarbe-bceylllinfodrrmic.al and often have rounded onTe-hhealrfooenr tgtwenoo-ltohgiridcasl offintdhienglsunagrefielladrsg;eliyn sseileicnosiins tthhee ulopwpeerr athreicaksenailnsog isshoawppaerveindte.ncTeheorfepiasthnoolongoicdaullactihoanngaen.d Tthhee gpelenuerraall "agprpoeuanradngclaesso."f Ethaerlypircoteunretgehnaoslogbieceanl ddiaegscnroibsiesdisadsifrfiecsuelmt. bling is Athme ofnirgstthtoe aspigpneiafric, aanntdsnigonnsparondduscytimveptcoomugsha.reThdeyscphneesat,ewxphaicnh sciyoannoissisd.imAinsisthheed.proTcheesrse aids,vafnrecqeus,enftilnye, cpraalclokrl,inwgeriaglhets lmosasyanbde heaTrhde. time required for the disease to develop is said to be seven ptorongirneessyiveea.rsInifetvhaelucaotinncgenthtreatdioengreise foafirdliysahbiiglhit.y Tithies ndiesceeassseariys otifcucloaurlrysetutboerccounlosisdise.r any coexistent pulmonary infection, par muTshtesttirlel abtme epnlat coefd tuhpeondistehaeseelriemminaaintisonsyomfpetoxmpoastuicre; trhelrioaungche adequate atmospheric control. Carbon anCd aSrblaodndiesnreolantivtheely ehxaarmmilnesasti.onFroomf mwaonrky dcoonael bmyinCeurms mthinegres dwaomuladgenoftrobme asnilyicsaeraiolruesadimy ppariermseennt.t oDf rh.eaHltahytihfotrhne,reowf ePreittnso ibnucrrgeha,sining aamsoeurinets ooffc2ar0b0o0n aiuntotphseielsunhgass thsheroewnis tahadtecwreiathse ainn tthaieninnugmab^ehrigohfpteurbceernctlaegse foofuncda.rboTnhesruecfhoraes, wane ahtamveosipnhethreis cdoins toruicrtomwanyeaxcpceoruienntcfeorwoituhr lfoowunmdroyrtawliotrykefrrsomonteubcearcnunlootsihs.elpFrobmut INDUSTRIAL DUSTS 87 faecetliotnhaotf scialircbao.n mixed with silica has a retarding effect on the airHaasldananaentiindoEtnegfloarnsdilhicaas. suggested that carbon be blown in the tioCnotahladnusstiliincotshise lbuuntgsacocroardnitnhgractoosiosurhapsreresecneitvekdnomwoleredgaettethne fol1l.owAingfibfarocstsismnaoyt tbyepsitcaatledo:f silicosis and not sufficient to cause odfispeuasree cmoaayl dbuests.hown on an x-ray film following inhalation 23.. SBirluicnodsaisgem, aoyf thoeccUurniwtehdeSntastieliscePouubslircoHckeaolvtherSlaeprvsicthe,estcaotaels. tahnatht ratucbiteer.culosis is low for soft coal miners but not for Iron proNdouncee oafnytheseroixoiudsesefofefcitrsononinintdhievmidsuealvlsesalhthaovuegbheethneshluonwgns toof mcoelnorewdhoanhdaavree bceaellnedexspidoesreodticto, tihroencodnudsittsioanreitscehlafrbaceitnegristteircmaleldy ssiidliecroossiiss-.prOodftuecnintigmeasn,dhocwauesveesr,athvearoyriengcodnetagirnese qoufafritbzrowshisi,chdeis penTduibnegrcounlothsiespisrorparoertiinonwoofrkqeurasritnz opxreidseenotf. iron. siliDcors.isGaanrddnearlsobemlieovdeisfietshaitts iprorongroesxsi.deHreetaarndds htihse asosnosceitateosf ihraovne mmiandees ainmtohset cLomakperehSeunpseivrieorsturedgyioonf manedn ehmavpeloyceodndiunctthede danuiemtaol uenxcpoermimpleincatstedwinthooduutladrisfciborvoesriisn.g Tehveirdeenwcee.r,eof6d,0i0sa0bmilietyn examined. Cement duTsthieestmoapneurfaaticotunrse, hoafs Phoerltdlanthde Ceenmvieanbtl,e arlethpouutagthiononeofobfetihnge fdrueset fhroams ntoutbebreceunlofsoisu.ndOntothbee baaspirsodouf cseerveorfalsilsiucrovseisy,s,tucbeemrceunt losCisemorepnnteuismmonaida.e by crushing limestone with clay or shale, raoreasstiilnicga,thsiilsicmatiexstuanred acnaldciuthmencaprublovneartiez.ing it. The constituents In a study by the Public Health Service, diseases of the skin,