Document 6b10QVvMNKD8ZoqXYd2bJZMDm

> *'A`'Vs' LEAD INDUSTRIES ASSOCIATION i i *it 4t* tmn MCW TOM tr, N> V. February 15, I960 LEAD mronn and nrarmrirar lfevur v To the Hritun of tlx teed Industries Association* r3r ` : <' v,2i-r',*J>?-S4 4-V^ '- - ., -*__tv-i.v:"~ .'ti2S man xs o zvnoct or ac t a w c r k u , msxs or l ead f o x s o h m or meoKS d o an o r d d iac t souaxao von.* / i . W Vf&f; T' Although the otoinco of sore than a nlnlnal hesard ^' /of load polaonlnc In the usual typo* of eolderlnf operations Is - * . wll recognised by those tiro are eonroraant with the sob>ct, traohlesans sdsconoeptlona periodically aria* and nay lead to ''."5*? conclusions quite unfair to load solders and alliedproducts. Tbs artlelo herewith, fron tho Medical Service of a , " 41- - ' Maedii* producer of electric loupe, sheald be of *aloe.in'0eer-:*^ss4 coning eoch nleunderatandlnge. In a farther cMnanlcatlen, colder nanofactorero will be Invited to participate In Us vide distribution. Dp to twenty-five coplea are avallablo elthoot charge, larger quantities at coat. \ U /wP Manfred Bnwdltoh Director of Health and Safety ; fix**- r- * ... r 5?' k> . i</' ' sfe: v * " ' 5. StV-:' (, . :-' k 1' !. P? St*, SttSf-jsSf.- v v- *'>v _. ,* 7 1 - * rfi^^iitn*-fca^*fi*Ti^*raCTlti*P. ^Y'^ir-^.Hrrn-1 :i ' .? v"; ' > fr3 #4".c^-SST :^ > V-ifV* t"*-* ** ^ .**>&** ^t -.*^t:-.* >i* ._iivitw-1m-t iijt,.a.JifltVEwft >; **a * i .1 1 Air Pollution '*3 foot* Sold&Utttf tfumei -*-** ^ ftf|)fiMg4 |fOS ` INDUSTRIAL MEDICINE AND SURGERY jMMMjr, I960 .: . - .5 ^ '- .***?;* * - '.* i.-- ' f, ,- * .. " -r ,'.`i-,.'. `ftiv* DiMHUMrffcf LEAD INDUSTRIES ASSOCIATION <0 |4M 42*4 SifM Nor York J7.N.Y. AIR POLLUTION from Soldering Fumes o C. A. BOOCACJtDT aad H. DC M004J MadicalStnlca n . v. rbap.- girfm wtifciiitM Floitiiwoa. Thrrr U m evidence of any abnormal risk* of Irod poUonlng of prnont doing ordinary toidrring teork. paatai fartarian whan a--mbit woih io tartpiaf aat air lailpa la ardor ta datarmiaa rwrM aa* a pMl daal af wU<Hn U aflMi tka bad coanatnUoaa ta which aoldann an aa- inM, Tko wMir oaad la tlawt atwapa a Ua|>waad. AS Ikaaa latoatipatioaa wan otUtdr M Raj. 4 It nap ba aaaomad that brfW r rewcaroad with tka daapar froM >md.' v ''as** aataDar tuUtM *1 trad aacapa iota tte atnoo- Otkar aaprrta at aoldariav* Pack aa tka poaaiUa pbtra. Far UU noana. aUrriai la rtfuM karaa or aaiaaan easaad bp naia wrapoalata la nrtaia rowatrWa aa daavraoa work, aad aad tka Uka. wan aat acptorad. wotnaa aad ftrla an aat albraad ta ptrforai tl Tka lanotiratloaa wan carrlad aat la two It iiwatd ta aa MnUr that a abaoM fca aanab|p drpartamta; (I) alaryo dopartatmt tattar lafonaad aboat tka rtak of prlaalit H wkan in ana aad ylrta an aapapad aa aa- waa tkarrfon Ir IM ta oadartaba lanotlfa- aambUay talariaioa aata, aad (t) a dapartniat Ilona lata aariowa a*pacta at air poBulloo la a wkan tttt villa an aayayad aa aaaaoabtlav radio aoaabtr of kfaitanta whan aoldariav ana aata. dear aa part of tka nwally rootino. Soaw tlaw pmrioaaip, taad aoacaatratloa* had Tka ianotlvatioaa daarribad kotow war* pcV- baaa datamlaad la two otkar dapaftawato. kora aarik laindad la coaatitata aotbtaf non than cailad (I) aad 141, wkan awtlaa tin aOopa aa approach ta tka pretlwa; an an awan that wan baiav ward la a dilfanat wap.^Tko Aotiaca oadp prana oaal taarladw caa ka dram from bon bora iaciudad la tbit nport for tka aako Cham. aad Ikat fartkar laraatlvatioaa wll ha af rctapMaaiao. awtaatrp. (lUa "Contiotlnt.**) iPaportmaat tkrao mptopad aboat M firla la Oantcal tlnat of Aa lawtfyaWaa ' dip aoldariav tapacitan aad faalatora, aad doportmant four amptopad dra am tiaalaf Mail Wa kata triad la r*<a aa laalpM lata tka abiarta bp dlpplay than Is lutt batka cetala- prohiaai fat bp aah)arHav a aambar of oat- lap atoiiao bad aBop. plojm Iron nrtala aatnMp daparlmaata ta ta oat and tw, onlp ntln-rond aoldtr roo- rllakal naatiaaiioa, aad (b) at tka aaflM tlaw alatiav of 44% !aad aad 44% tia to wood. OfonolmliM of tooephlia Onoolitko tMkl U tbo totoriotoa aad radio u h b M; drport- for tba porpooo of dotoralalaf tbo baonpblllr looaU. 41 offlplnpaoa voru plrkod orbcoa dotlaa rraavlotioo of tbo blood, a blued oaooar k txod Included ooldortnf. Our aodaavor to wloct with methanol and tboo colored orltb aa akobeHc tbooo orb# had tbo proaUOt number of tatMii melhpleaa blua solution Lane*. Tba Aim k OS' i^mUm to perform u4 wbo M Um Ma| emlned under a microscope vfth darb prooad Uh ant for mo m tlm*. The (tmiitt of tbooo ItlumlnoUoa aad tba nombof ef atippk tolk deportments U meloljr female, and acoardlactp counted. tba total number of redo balaf abort MM Mk op lb* majorttp of Ikooo ouaW. 10.000. Wo disrrrorded tbo boo atippilof tbat A ooU m UUa of the Hobor of mUtrini k ootaotlaMO rialbk la tbo l OftnlloDt porfiiroof Pr boor bp sarh pkpeo. from (bow d>U H vaa pooalbk to calculate the oaoouot of ooUtr oof bp CoocoatratloM Xaoohorof porooaa ledtridaal. (bo toneomptlaa pec 100 apaootlsoa brio* kaowm. At anch booth pooHloa whaco aaldariaf la dooe thoro k oocmaDp * aom> faa orhkh ooeha >A0% M 1 t in; tbo fames ihifti froaa offaftf. Tbo foams (boo full or* ool ptped off, hovooar, bat otnlf dloporood throafhoat Ibo obey It oraa rooaarbod tbat ao torroktloa ocktod " botorooa individuals itb blfbor pertantafea of#v' boonphlllr rorrolotloa aad tboat sahlbltlap a': ` Cboko of Crftorio propbpriae content (Toatoo tbaa 400 p/1. Tbo too crttocta cboooo far tbo marital on iaotiea of m|4npoaa ooto (II copccpocphp- laoitatioao to aadono a fortbor tbatb ooaro , ~ extended to tear ooaplopaao ok had born faaad - rimria and (!) basophilic (TsOoWUaa. to baro allbar a tatbor blgb ecpreporphpria IQ y Tbo trot armptoono < kriploot Wad polooalaf, excretion rata or a ratbar blfk baaopblllt praao- `IT familiar freon dotrlptkmo la tbo litoratara, art Iwnuk oatfolka of eepropocplgrrta III vtth ktlaa. AB foar wore drib tbroo trial la glad ' boooa and oao la Beldam. ' - - - tbo a(too aof aa lactoast la Ibo aookr of It oraa aoapactad tbat kad prMMTfa otlppk talk la tbo blood.' gootaaatolp, tbo too . deoMatlr orator aeppf? mlfht bo lbo caaao -dfl methods cf eumJeaUea happo* to bo toaooakat tba hltbaf flfsroa, aad ncrordiaftp tba fftrk for uaplopmmt oa lu|t troopa. On tbo dap that tbo load tootrot of tbo air of tbo tolrrtohm aad radio aaonahtp 'depart- lJ toon npioM to beta# sample af driaUaf ,. vatar from tbalr bnraaa la special bottka af ' ; load-fraa (taaa that orora (ioaa tboa. 1>- , awoto oat determined. blood oaioaro ooto tokaa ` AD four o t t o arola aobjoctod ta tba toota;" fnoa tbo II ookrtod employsoa. obo aka haadad biaodriili cooloot ako boiap datonalaad. la spariamom of tbofr amretaf arias la bottloo Ibat bad boooi pcorlded. Tbo ariao toolo orora porfonaod ottboot dolap. Tbo tupropoepkprio toatoat of tbooo ooapkpW ariao apala oaa Botridinir Craaa* iff dotonaiaod la a oocoad toot tbroo oooha ktar. i PttoroakoKoa Tbo omkaaatitoUoo oootbod of dotonlaatka alti tXouitb'o apparatao* vao tbo oao dorldod opoa. la lbto BMtbod a proripltoto k obtalaod bp troatlnf tbo aridiftod ariao aritb otbori tbo 1 fClodboooai S (tlodboroa) S (Elndbotoa) 4 (Mfbna) ktlca Porpbpriaa. Bb. % 1laaoaa par Dtar oalta ' < n J < M 4 < 6* W *J <* 1 . kroripttoto k tboa IrrodUtod with altravioM H(bt aad Ho doorootoato tolot totaparod orltb Ibo otaadard cakn oa a aot of papor dlara. Aaalpoot of Orktkf Wakr ' Tbo aatplopooo roaldooit la Ctadboooa aataralV drank valor freoo Ibo Mala*; It nt faond tbat tba tMfiiua (iri waa driaklap tooDvatar. CoatoatraUoaa KntWf of I (Clndbovoa) f faauaa'Pbft. vatar taauaa pot IHw lot tool tad tool S (Rlndboroa) 41 poauaaTb'L orator D 100 ItnatOd *4 4 I (Klndboroat 4d 4 <tMplooal Md paamtarfb/t. valor aaaTbt valor 9 100-40* aooao* f I Tba fourth aaatpk aka coatalaod a float doal af Iroa. It It Dot kftMn whether these samples W water (mi IW Mains were Is Im iftsr the ntrr had bM at rvet or after It bl bee* mm.iu Coorsetrsttoa la gamma/M* < running far seen* tin*. Tbe t alecs of Runpiss two and three egree rather *HL Kr Van lattm1 Indicates a safety Malt of (J a( Pb Mtro for sratar that has bee* at root la underground mains for eight boon. An intake of Ob to 0-1 mg Pb per day can be igarded a* 1 U T* M- >4 144 47-US safe; this cornspoode to about 104 paat C. > at IB- M The eoaceotraUaa found is the wet! water of a 14 47 *4- 40 T 44- 44 rase four was MI paw Pb U and i--rwhsl 4 S tto U4-IM - - eacoaole*. Hssimemsal of Lead Csstislrillna la Ah Pared with the task of Investigating a large depertmsat with hundreds of aoiderlag posi tions. IS* were obliged la tbs trot place to limit the number of sampling points. Poor peelthou were salaried at which the ooasoaiptlna of m, solder was haooa to bo highest; It was therefore mi *ina ia ieoo o*ceairacis*a was so*aa;. extreme as wed aa avenge eolem an ladadsd. Tbe MAC carnally accepted for Mad b SL. gamma M*. The concentrmliaae dee to aoiderlag are all below 100 gamma. M* tboogh they are enmiehat higher la the fames. The namber nf points sampled waa na the Mw aids. * ^ tbe worst conditions that were picked oet for . . % investigation. The. air samples ereea takan fnaa potato aa done as possible to the anise ef sm- ' phiyiea while they were doing their aorsaal wort. Part time a sample waa lake* the fa* that par--Hr nawew the soldering faatas was ' Our etamlaaUm af --plays m regeMrly a*-%? gaged a* soldering werfc has failed to reveal a*f fact nikh might potat to thalr aaferlagfrem lead poisoning. Inna iadirtdeh^ .waa a high copenporphyrta content combined with an switched off. Sampling teat twice repealed o* later Oceanians at the aaaae kick positions. It van considered not unlikely that higher nocewtratkma might esist away from the nose. . ".Accordingly. a anmpMvmetnken directly above the point bring soldered, la the femes. Initially, sampling was done with the paper Sheer I Schleicher and Scholl WVl that *e nor mally use for other mraeoremeats. Imp!agree were known to be less efficient for this perpom. tHertroetatic #tiers were not portkeUity safe la the cirramrlaacee prevailing la this ' site percentage ef atlpple ceDa. Tt Ts true thmfK some Individuals axhibltod vaioeu la aacam,*f^, - CM gamma t, sad Ut% rmpectivvly for per- Y phyrta. and stippled; aMM whkh are regarded* as the norms! ooea. bet the acmbsr of amh* persons was no greater than might be expected to a group of this kiad. load concentrntlene preemt aa air aad dot la eolderlag were *N feond to be under 100 gimma'140M*. .,yvv Tbe MACa camntly accepted for Mad 'l* Aaserke and England afe *40 gemma^m* aad ItO gemma nr* respectively; compared with assembly shop, ft was see* found that the efficiency of sampling waa variable aa well aa lout (sometime* aa low aa tl%). "MiWpoe*-* tbeee. our Bguree cannot be said to give evidence, ef aay abnormal risk* far peruana delag ordinary sc1 ' ring work. . filter* were therefore adopted: aa stated la the .llleraterei1 theeo are particularly suitable for cedextlng the Baer partkbe ouaatllatieeiy. and One or two aepecta remain to ha lavestlgstad more thoroughly. Ia partkukr.elaeo empMyeee* bands are so frequently la cootart with Mad they did In fart work with aa acceptable degree aOon, there le a chance that they art nbaorhiag of efficiency, from H'i to 11%. We were aide . ndditieaal Med through the mouth. There havu le show, by photographing the Biters under the bee* fairly Urge dlffereacm la the porphyria* electrew microscope, that the particles of solder ceateal of the urine front can perron ee deter they 'etraleed if had dimeoslcas between 4.44 mined at dlferent times. More detailed laveoti- and 0 1 micron. Unrig residues sad metal)k com gatkns lata thee*changs* art now la pregress. pounds opaciue to the electron beam to*Idea) fUf, r' -1 were also found to to present. Samples oere taken over periods of fa mi*, ulca, la this say enough lead was ruftsrtsd far the lead xeilrtil to be determined by tbe dithleoaa i rsen a a. se sui *C I~i I vsee--n.- 4*4. 4s. et---- a ilw, last,. I---- a' s Pss A* r Ba< ww, lass Less, mw 4. f*4 Os4 IISSSI * IIS ( tssesu 4* O I..S.ISII IISSSI a M r method' after It bad bees attracted from the ft ftmth ft t* *4 tftnaa*-*** fffirm A* filter with dilute nllrk acid. 4mA* H4 0H fffiMrKft li ft Ml. ikH. HI. 4 ! 4M **m Uf|i rw ITwH! M IM4* f fft.