Document O1jr9wdQ9jeEJ90jXqmLwqJyj

/ ETHYL CORPORATION 100P A RK A V EN U E BU ILD IN G AT 41st ST R EET NEWYORK 17, N. Y. October 26, 1955 Dr. R. A. Kehce Kett er in g Laboratory o f Applied Ph ysiology College of Medicine U n iver sit y o f Cin cin n ati - Eden Avenue Cin cin n ati 19, Ohio Su b ject: Publish ed Items Dear Dr. ICehoej We ar e at t ach in g h erew ith two item s -which have been sen t t o ua from th e Cen tr al Region . One from Mr. HorabecJc i s an a r t i c l e e n t it le d , "Lead i s Dangerous" and appeared in th e Jun e 1955 issu e o f Gr eater M in n eapolis, o f f i c i a l organ o f th e Min n eapolis Chamber o f Commerce. The secon d i s a l i s t showing con cen t r at ion s/of n a t e r ia l in th e a ir , which i s b ein g d ist r ib u t e d by Mine Sa fe t y Applian ces Company. Vie ar e r eason ably su r e t h er e i s n oth in g new in t h ese a r t i c l e s of, which you ar e not fa m ilia r but th ough t you might car e t o have them fo r your f i l e s. Very t r u ly you rs, JT Bill Attach. 2 Medical Memo Leadis Dangerous! The accompanying article is one o] aphsyesniceisanwsriutntednerbsypothnrseoershMipinnaenadpoalpis proval of the Hennepin County Medi cinafloSrmocaiteitoyn. Rpeeartdaeirnsinsgeetkointgheadcdointitoennatsl of these articles or those wishing toget aCinrotiutconluetcyahMreweaidtsihkcaetdlheStooacuicetahtlylo,rthFoeIf.Ha11esn4p1ne.ecpifiinc Lead is one of the oldest metals known to man and it has long been recognized as a cause of disease. It gives a clinical picture which may re U. e f M. scient ist s. Or. William G. Kubicek semble other things but which physi (right ), professor of physical medicine, and Dr. cians have learned to identify as lead Alan P. Thai, research assist ant in surgery, poisoning. To acquire lead poisoning the lead examine a rabbit in a pancreat it is experiment . Phot o t ak e n at t he new Ma y o Me m o r i al Hospi t al . must enter the bodyand be absorbed insufficient quantity tocause thedis ease. The skin is a very efficient pro tective barrier to many things and amongthemaremost of theleadcom pounds. Thismakesit possibleformen to work with the metal and its com pwpooitiuhsnonldeisnadg.wisJiutnshoto-jubutesctiafduicesaveteiolaonpmfioanrngawssloeuramkds ingthiit whenheisill that heissuffer ingfromleadpoisoning. Evenwhena workman is excreting lead in his urine he may not be suffering from lead poisoning. It mayonlyindicatethat he aist aabssoimrbiilnagr rlaetaedwanitdhoguetttcinagusriindgoafniyt damage. plate, theheat generatedbytheimpact mmthaaeynyavthateopnuordrsiaz.neEt evnewonhuogsohfitslesaoedlxdpetoroisnepgdoiisffooinrt is prolonged and done in a confined space may create a lead hazard. In industry one of the common oosoxfuisdrtceoerpasogowefdbleaertateudrsieepdso.iisTnohntheinepgmowiasndtuehrfeaicsltfeuianrdee and unless it is handled carefully tphhreorueghisouctreaalltesdt.agWesorakmduenstyinahtamlionsg the dust may readily absorb the lead itthrEhoavusegnhseytrhoveeudrluointlsdgsps.tuorrpaogseebiantteyroyurafctearr boTthheinscidheanacnedsoouftsiedxepoofsuinredutsotryleaarde ffnrauommmieliraaornusot.oreTechvaeellreysdoonfgeta.lmeInteataiwsl hldeeeraerdivtheides lead is in the formof lead sulphide. mayagain create alead hazard during 'its break up for salvage of the lead. cFaonumdrtehheafravmmeoilbrieee,senbfoatrrttifeeurdeyl.bcyLaseseaosdmbpeuorlionsownwiinenlgl of the wholefamilyhasresulted. aInndthienpmroacneyssinodfussmtreilatlinpgroacnedssreesfihnienagt is applied. Whenever leadis raisedto "abhoiiglshoefnf"ouinghthteemfopremratoufreasvoampoero. fAist ratithnheriteaesodeaialvliyerseiaraldyybsrdafeviianalsetspehaooedlprvdafercudtiomincoatlelnoes.dsLtiawthebeahsrdieoclcrfuhbrunyemgfsdltseo.asalTiatzahneiridness is why lead poisoning is always a danger whereleadismelted. Tetraethyl lead differs from most lead compounds in that it is readily absorbed through the skin. This con1stituent of ordinary gasoline makes it dangerous to put your hand in motor i!gasoline. Twoyears agoin Minneapo lis it was discovered that tetraethyl (lead can cause lead poisoning even Iafter the gasoline is burned. In the course of removingcarbon fromauto mobiles, byanewprocess, aworkman developed lead poisoning frominhal The danger of poisoning fromhot - ingthecarbondust..Ananalysisofthe lead isnot limited to processes where carbon removed showed that it was heat is deliberately applied. For in nearly 50%lead by weight. Demon stance, in shooting galleries, where stration of the hazard resulted in re lead bullets are stopped by a metal designing of the machine by the. manufacturer so that the process is nowsafe for workmen throughout the United States. Lead compounds have for mans' sears beenusedinthemanufacture of paint. In recent years most of the paintsintendedforapplicationtofurni ture and insidewalls of houses donot contain lead. For outside painting, however, and for application to metal structuresexposedtotheweather, lead paintslast better. Suchpaintscontinue tocreate a lead hazard after they are applied. In the hot riveting of steel bridges or repair of painted hulls of boats the application of heat may re lease lead fumes fromthe paint and endanger theworkmen. Inpartsofthe country where small children some tbiambeiessdohanvoet gdeitedawofelll-ebaadlanpcoeidsodniientg, after gnawing the lead paint off the furniture or outside of the house. Even in the manufacture of such beautiful things as glazed pottery, dishes, and stained glass windows, whaozrakrmdeonf hleaavde. Ttohecofrnitt,enwdhiwchithwhtehne heated becomes the glaze on dishes, contain a significant proportion of lead. The gray paint which provides the shading on stained glass windows contains a lot of lead and has been knowntocause lead poisoningduring its application. Year* ago lead poisoning occurred because lead was sometimes used in cfaausecsetsofoflebaederpkoeisgos.niNngotwsoerleontgracaegdo twoasfloduisrcogvreoruenddthbayt athecemrtialilnstomneillh.aIdt broken and been repaired with lead. In another instance several roofing men developed lead poisoning from roofing nails which they held in their mouths. Investigationshowedthat the manufacturer had run out of zinc to coat thenailsandlaidsubstitutedlead. Animals, too. sometimes become poisoned by lead. Ducks sometimes eforafotmsthotoohoetminbagointt-ohmalesaodftapkpoeennlldestpslwapchieec.kreeCdaowluopst have been poisoned by eating lead bullets picked upon ariflerange dur ingpasturing. It isreportedthat at one time awhole group of race horses de veloped lead poisoningfromracing on adusty dirt track which had formerly been the dumping .ground for a load smelter. 30 ('ren t er M irn t e ajioli* C o b l e sp l i c e r must be ob i e t o i dent i f y each p a i r of w i r es in a cabl e, mat ch t hem up on d t hen spl i ce t hem in a w at er -t i ght j oint . Som e t el ephone cobl es in Mi n n e a p o l i s cont ai n as m any as 3, 636 p ai r s of w ires. DoestheNorthwesternBell Telephone Company haveanyemployebenefit orpension arrangements? Yes. Northwestern Bell employes havehadaBenefit and Pension Planfor 42years, it protects against loss of paydue tosicknessandaccidents, aids anemploye's dependents incase of death, andprovides foraretire ment income. All costs of maintaining the Plan are paid bv the companv. Service pensions are paid fromatrust fund administered by the Bankers Trust Company of New York. This Plan has been considered to be a major help inattracting skilled and dependable people into the telephone business andencouragingthemtomake acareerof telephone work. cDoonevseNyionrgthinwfeosrtmerantioBneltloheamvepalonyyesm?eans of Yes. Thisactivityisconsideredtobemost productive and important. The Northwestern Bell magazine, a monthlypublication, ismailedtoeachemploye'shome. It gives employes information on matters of current interest inthe companyand overthe Bell Systemas a whole. Inaddition tothe magazine, the company uses motionpicturetrainingfilms, bulletinboardannounce ments, discussions betweensupervisors andtheirforce groups, andotheraudioandvisual meansof communi cation. The employe' information program is a joint responsibility of the operating, personnel and public relations departments. pWerhtaaitnisstthoetphheilcoussotpohmyero,ftthhee ceommpploayney, aasnidt the stockholder? The policy of the company as a part of the Bell Systemis to provide' the best possible telephone serv- Ju n e , 1055 f\ C: n I n f o r m a t io n o p e r a t o r has access t o num ber s a r r a n ge d bot h al p hob et i cal l y an d num er i cal l y by st reet ad d r ess- In f or m at i on op e r at or s in Mi n n e ap ol i s h an d l e m or e t han 60, 000 r equest s f or i nf or m at i on each d ay. ice, at the least cost tothe public, consistent withfair treatment of employes and the financial safety of the business. As long ago as 1927, it was expressedthis wav at a national meeting of Public Utility and Railroad Com missioners: "This company believes that earnings that areless thanadequate must result intelephone selvice that is something less thanthe best possible. Earnings in excess of these requirements must either be spent forthe enlargement andthe improvement of the serv icefurnished, orthe rateschargedfortheservicemust be reduced. This is fundamental in the policy of the management." W o r k cr o w f or ces cob l e i nl o condui t i n e x p a n d e d ser vi ce pl an. 29 T HE CONCENT RAT I ONS OF MAT ERI ALS IN THE AI R Os: .-LVuCSs*j S3ABc0o.TnAcAeAnVt ' - e ' A* E N'ENOED t j BE - S * 'E- D Zf n Ou STAi Ai. O- fN NC* S. ' 4 * _ o<* uS .N ST c o * u n >t t i * a o c l u Tio n n VACUE Si VEH * 0 * 0 *!OATS 'N N.r o GEN fl X'OES, ORGANIC # ANO OZONE N. ANO Cd VALUES > *EE i l l AE TO lOE LAAIAT.ONS. ESAECUI. CONTROL EASu AES AAE USEO CONTA.NAT.ON Chart No. 1500-1 CONCENTRATIONS*Mg/ cu . M. Issu e d o o p u b l i c se r vi c e b y M i n e Sa f e t y A p o l i a n c e s Co. 201 N. Br o d d o c k Ave . . Pi t t sb u r gh 8, Pa . Pr e p a r e d b y So u t h w e st Re se ar ch In st i t u t e Not e : The n u m b e r s r e p r e se n t b i b l i o g r a p h y r e f e r e n c e s w h i ch con b e f u r n i sh e d u p o n r eq uest . .c 7 ' fiFfiVW&MW} ^ J J SZ J ^ r J k m m 's sAPSTY.APPiLiiiAKrcas s o m p a s j y . 201 N O RT H BRA D D O C K A V EN U E PH O N g CHURCHILL 1- 5900 PITTSBURGH8, PA. CA BIE " M I N SA F " PIT T SBURGH HERE'S A HANDY CHART ON AIR POLLUTION YOU'LL WANT TO KEEP! Useful and compact, the enclosed chart indicates the relative concentrations of materials in air. Scaled to milligrams per cubic meter, the chart gives data on the chemical and biological matter present in normal air. This up-to-date scientific information was compiled and prepared by Southwest Research Institute and is presented as a public service by M-S-A to aid in the evaluation; of air pollution*. Note that the small numbers below the convention, arrows refer to bibliography references which can be furnished upon request. Because we believe this chart will prove of value to everyone concerned with air contamination problems, we are offering additional copies free for distribution to interested groups. To order your supply just indicate your requirements on the convenient reply card and mail it today. Sincerely yours, MINE SAFETY APPLIANCES COMPANY kk JBD:mb Enclosures J. B. Davies, Manager /^Industrial Department V' * It is the first in a short series of convenient data on this subject to be distribute in this manner. nN 1i Gni a