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EXHIBIT
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Hr. J. V. HcHlllaa Uodu Buosor Pittsburgh Cbrnlas Os# Tyler, Texas 75701
Dear Xr. Udttllau
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Tho analysis of the air saaplea collected in your pleat during
our survey la Kerch 1967 baa beta cooplaeod. and the remit* cm
attached. The Ispinser aesploa ware counted dories the survey'"*-*
using the Aoaricsn Coaferooce of Covcrnsaotal ladootrial Ifrslcnl^ts*
netbod. The naabroae filters vara rendered transparent with m' * t
50*50 sdxture of diethyl oxalate, dlaathyl phthalote aad at A30X aaeolficatloa with phase coatrsst lllealsatloo#
counte; d-* 3
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The dust concentrations as ncasurod by l^plogor exceeded the 5 Billion particles par cubic loot Threshold Liaalt Value correctly In use, in a nuaher of locations. The nsbreao flltor notbod la cxperiaantal and no standard has bx act for its Interpretation in this country. (The British Occupational ny&lone Society has Issued "Hy&looo Standards for Chrysotllo Asbestos Cuat** for the 5ju fiber counts in fibere/cc as followst Bcsllglblo. Leas than 0.5; Low. 05*2.0i Kediua, 2.0-10.0} High. Kora then 10.0. They also recouoend that "Whoa it ia aacaasary to work In a 'high duet* arca aa approved cash should ba worn. ** The atenderda era for threo-aonth averages.) Scan ralationahlpa between the faplimac and filter suasorcacat. and eooe results of surveys of other a beotoa product areas. are discussod in tha enclosed reprints.
#
Tour cooperation ia this study la sincerely appreciated aad tha data sained froa your pleat la of considerable value.
J, * f '4:0 . #
Sincerely yours.
i
JELTBCHtna Enclosure
ees Dr. Lee Grant Dr. Crall/
Pros. Hgnt. Offer.
Jcrcrdah 8. Lynch *-* Aset. Chief. Eavlrouaental
Activities field Studies Occupational Ooalth Progeaa
PLAINTIFF'S EXHIBIT
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Air Saa?l of.tfaxrb 1967
71tstnxs& Coralog, Tjflcr. ?ra
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200 - : 0.5
212 .
21.4
. . 214
13.5
.
.
:
%
202 210
#M
216
0 117 4.9
102
2.2
103
` 7*8
.
. ji 0. 1
;
. i x; - .
. i-
. *
tryyy--.
1 :
.
i
204 330 . 328 210 217 309 26 34
; i
*
4.7 5.3 2.9 4.0 1.2 4.7 IA ZA
'
ngTOTTrai Vlbcrs/cc
"Sowla _?QgP.l 5J1 4>
201 213 215
7 9 23 1C9 114
203 211 217
8 23
403.78 491.44
451.46
j255.56
253.77 \ 216.73 ;
j
613.39 336.61 i
240.5 115.6 230.23 200.57
7.8 18.4 178.13
3.9 8.2 71.08
73.5 45.3 266.4 119.0
203 229 327 318 316, 308 ' 27 25
92.9 177.3
61.6 39.3 11.9 11.5 78.6
26.7
*
53.4 49.9 21.8 15.3
7.2 7.6 20.3 15.2
S * Sraathldg Aoar tfmHrifflO ixfta&x^aoB&emxm 11tar rsqplas. 7or*l tvwftgwtt ftlW Maploa OftUwtri ty a Ottiliag ptsb vora Snr
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litubocsh Cormirg
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Oporatloa
laplngcr
Membrane Filter
Flbayg/ce
SfltPlo^ troef
Sftrela * Total
+
fomlng
1
23.3
15.4
2
54.7
22.5
3
20.0
12.8
S
10.1
5.5
10
44.5
21.4
11
30.6
14.7
29
73.6
20.3
V
ciU3&
30 - 32 tto Bccsrc=i tliicrs ver? reaa-^ tr=. ."35 * . --
26.4 77.2 41.2
10.1 45.9 26.9
.3
33
51.8
21.0
39
31.7
11.1
ICO
83.3
30.4
107
87.3
60.5
103
134.65
66.35
111
87.1
43.0
112
93.4
48.3
113
267.51
117.37
120 4.7
Curing Finicking
_Sm-
0.1
313 10.9
331 37
312 19
9 . 4.0
8 2.5
260*5
140.6
310
199.9
67.2
13
12L.0
72.3
323 33S 207
6U2 32.4 74.0
mt .6 20.1 46.4
: **
84.0
9 51.6
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htuborsii Corning Operation
Vlnlfklng L ift Truck Driver
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f*cfciS Packer
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Forklift Opecatar
p-
- Igolggsr . .. .... _ Mcgftrtm FMtgr _
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--Barola 4 vm>cf ____ Hm&let 4 Total S-*t
.
123 1.0
8
70wC
23.0
203 333
2.5 as
,
313.
2.1
-.
1
209 337
16
14
22 23
314
17
21 110
101.7
27.9
10.7 40.2 20.2 69.2 24.3 27.4 11.2
4.7 .26.1
7.0 31.0 13.2 10.0
0.0