Document RjZX8OgVr4OkyKY0a88pG0NrV
INTERNATIONAL l e a d z in c RESEARCH ORGANIZATION, INC.
292 MADISON AVENUE. NEW YORK. N. Y. 1001V Te l e p h o n e 932-2373 (a r e a c o d e 2121 CABLE ADDRESS: NYILZRO NEW YORK TELEX: 14-8320
September 11, 1975
Dr. Ronald D, Snee E, I. DuPont De Nemours & Company, Inc. Petroleum Laboratory Wilmington, Delaware 19898 Dear Ron : Enclosed is a copy of the individual data for the Williams Study. The air lead measurements represent the mean of 10 samples collected daily for a two week period. The blood lead measurements represent the mean of 5 samples collected on a daily basis for the second week of the air sampling period. I wish to thank you and dim Lucas for your participation in the meeting on Wednesday, I feel that the meeting was worthwhile and provided us with valuable input on some of the pertinent studies. If you have any comments after looking at the Williams Study please do not hesitate to contact us. Sincerely,
Donald R, Lynam, Ph. D. Manager, Environmental Health
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TEH 0470604
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Machine
pasting
ffond pasting
Fomins
Coating
Plastics
Dept. B
Plaatlca Dept. A
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(niK.idilli*TM* ZWr .
/ Mean Eight-Hour Lead-In-Air Concentration (Pb-in-Alr) and Mean Values oat 1
and. Departmental Means and Their Standard Errors.
cor -- corrected to specific gravity of 1.024
unoor a uncorrected
Man
O. J.H. O.R. S.D. F.B. L. J.D. D.W.R. fban 3.E.
E.H.R. K.R.F. R.D.B. T.E.C. J.T.L. K. A . .. A.J.K. A.J.H. Hoan 3.E.
R.D. F.W.X.. T.J.H. F.O.C. E.P.H. J A. O* A.D. 3 .R.D. G.W. . Mean S
J.D.3. A.B. E.T. A.G.P. J.C. W.C.W. Mean S.E.
R.P.B. D.W.3. R.J.3. O.J.Q. 3.W. Mean 3.E.
E.J.R. J.M. H.T.O. S.W. F.C.O. Mean
3 .
Pb-ln-Alr (rag/m^)
BL (US/IOO ml)
.234 . 166 .248
.129 .234 .296 .215
.025
74.8 72.2 93-0 56.8 73.6 74.6 7572
4.7
.159 .298 . 166 . 104
.233 .096 .069 .068
.150 .029
51.2 85.6 45.6 70.4
*
*63.2 '
9.2
.084 .200 .121 .159 .176 .079 .146 .131 -111 .i35
.013
.040 .046 .055 .055 .053 .061 .052 .003
.008 .0.12 .008 .009
.ooO .ooy
.0000
69.4 73.2 61.0 59.4 64.6 44.6 63.2 63.6 67-6 '63.O
2.7
_ --
-
32. H
27.6 24.6 28.0 33.0 29.1
1.6
22.5 50.0
28.8
29.0
25.8
27.2 1.4
^ ^ p *>
UX, fus/1)
cor
vmc or
RCP (Donath)
166.1 160.2 195-0
80.6 144.8 235.8 . -T&tB
21.2
74.6 164.7
65.6 114.2 102.5 173-1 115.7
79.8 I **
14.1
106.4 95.6
137.3 146.3 133.7
78.0 110.9 no. 7
7.2
72.0 79.5 76.4 105.0 82.8 111.9
6.8
135.8
130.0 154.0
65.6 146.4
00.8
I5ET5
17.9
75.8
79.2 65.4
92.0 66.3 148.2 58.2
73-5 0273
10.1
74.2 76.2
112.5 117.4
117.2 79.4
102.4 18.2 81.4
"95.4'
6.0
. ..
69.4
73.8
68.7 72.6 78.8
97-5 76.8
4.4
5.9 3.4 5.8 4.1 3-1 5.1 %tS
0.49
2.1 5.3 3.4 2.7 4.2 2.7 2.9 2.5 ^2
0.37
4.3 5.8 3.4 4.6 3.8 2.4 3-9 3.9 1.9
75^8
0.38
1.9 1.8 1-5 2.2 1.6 ' 2.0
. TH '
0.11
38.9
39.5 34.5 32.1 29.1 3475
2.0
37.6
30.6
36.0
27.8
27.4
31.9 2.1
37.5
29-6 28.2
45.5
553
3.2
28.6 25.0
20 .7
33.2 24.6 SSTf
2.1
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TEH 0470605
DUP050083421
N42483.01
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TEH 0470606
DUP050083422