Document KG9XBoVO1gKJB89KEaaw3e4VN
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ComJng Cft'TMmUon P. O. ftpi 3? ^orl
Jewery 26, 1971
&?. Morton Con 310 Sever KlU Roftd Pittsburgh* Pm*. 11226
tear More:
Until the eetaehed vmt teceind, 1 hU forgotten eh*c three young &en froa HEV vnrt Meet to ecaple elr in aeny depcrtente. Z did net hetvdie their vie it 19 I a nee cure whet Xoeetietw ore ea*t by their tern. 2a iect no one here 1# ut* lut whet ere** vere cheeked.
They etid their etud? it for reeeenh putpotee. X 4o nos know whether the dec* will fc j>us^ on to E?A lor excaple.
Z m cut-priced tc the magnitude { the variation* io Measured vluec. Fleece eos&ent on your opinion of eucB date. If the ttei report ii to herter fora, Z will tend you e copy.
Sincerely yeura,
PITTSBUTSE COKMIHC CWOMTIOK
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TT8BURGH
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WSiwnfcALTH DP FEUMSXmXA ^^31? OF EJVlBOfflXWM# 5U^a
OCCUPATIONAL IEAL7H
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L Dust Concentrations
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V~ i :/Fittsbyrgh Coming Corporation 1 . Fori Allegany, Fcnnsylvanie
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j lo-Etion
; Concentralions*
Besarks
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(tfillions of particles * per cubic foot of air)
*, Forcing &opartcnt
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. H' . *; v . ' Between feeder
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2.6
Worker*e breathing sene, loading feeding machines, respirator worn
Bome es above, clean out dor on conveyer accidentally le. open
General air
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Ho. 2 Building
Machine
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/ Ho. 1 Building \ * Machine
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0.7
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Worker *e broething sons
General air >
. Finishing Beparincnt
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" Uy scrap gritwe*
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03) 4.1
.4.6 1.4'
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= <%
35.00
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.Worker*a breathing zone, ftt ing material to intermediate
Worker's breathing zone, rsr ing end pecking material fre intCTTrUiete saw
Worker's breathing sene, for Meto rial to anall saw
Worker's breathing tone, rcr ing end packing material fre email saw
Worker'e exposure feeding sr transferring anteriel on Ui
Worker's breathing zone, tr.*
ferrinj* and p:tcha;.iu.; mMevJ tn*n l4**** a rv*
Gtnorni tir, unly intur-a^* *iuw in PMMt5pn
SJ 00089
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Shipping Deportment
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Concentrations* (mill!ore or particle* per cubic foot of fir)
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Worker's breathing son*, .weighing ^ sealing box
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. ^Threshold licit value (71V)f $ nilllon particles per cubic loot of sir, based on
exposure^ tv? on S-hour vorJdng doy
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Surve/ by: ^ohn Fierro V. C. Hciser
. Industrial Hj'gienista
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SJ 00090
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