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DuPont Haskell Laboratory forToxicology and Industrial Medicine Elkton Road, P.0. Box 50 Newark, DE 19714-0050
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DuPont Haskell Laboratory
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Gerald L. Kennedy Director, Applied Toxicology DuPont Haskell Laboratory P.O. Box 50 Elkton Road Newark, Delaware 19714-0050 Phone: (302)366-5259
VIA FEDERAL EXPRESS
FYI-00-001378
FYI "0 0 -0 0 1 3 7 0 '
Contain ivo OBf
Document Control Office (7407) Room G99 East Tower ATTN: FYI Office of Pollution Prevention and Toxics U.S. Environmental Protection Agency 401 M Street, S.W. Washington, D.C. 20460-0001
85010000014
85010000014
May 24, 2001
Dear Sir/Madam:
FYI-0101-01378 and FYI-0301-01378
In response to your letter dated March 20, 2001 requesting the entire data set of blood concentrations summarized in the table on page 9 in the report "Voluntary Use and Exposure Information Profile Ammonium Perfluorooctanoate (APFO) (revised January 2001)" [referred to below as UEIP], please see the attached Dataset Table. Employee numbers have been deleted from the tables and replaced by code numbers to protect employee confidentiality.
In compiling the data contained in the attached Dataset Table, errors were discovered in the table on page 9 of the UEIP. A corrected table for page 9 of the UEIP is provided below.
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E. I. du Pont de Nemours and Company
Printed on Recycled Paper HL-14 Rev. 5/97
FYI-0101-01378 My 2001 -
Page 2
Corrected Table for Page 9 of the January 2001 UEIP
Year
1995 1989-90
1985 1984
# of Samples
80 22 22 19
Minimum Concentration (ppm)
0.12 0.06 0.06 0.07
Maximum Concentration
(ppm) 4.5 11 18 24
Mean Concentration
(ppm) 1.56 1.96 2.34 3.21
In addition, note that the 1995 data in the attached Dataset Table is reported for employees in jobs with potential for APFO exposure who had their blood tested in 1995. Available data is also provided for earlier selected years (i.e., for 1989-90, 1985, and 1984), but only for those same employees. Additional blood sampling data for other employees and for other years is being compiled and will be submitted when complete.
Please contact me directly if you need additional information.
Very truly yours,
GLK:jhh Attachment
Gerald Kennedy
I
FYI-0101-001378
Dataset Table - A PFO Blood Sam ples
1995
1989-90
1985
1984
Code no.
ppm APFO ppm APFO ppm APFO ppm APFO
12
0.66
;
2 1.6
6 2.4 2.5
32
0.26 0.24
4 2.1
1.4 0.76
1.1
75 0.87
74 4.4
4.3 18 24
5 4.2
6 2.8
2.9 4
7 4.2
2.9 2.6 2.6
8 4.1
2.7 2.7
4
9 0.58
0.08 0.06 0.07
10 1.9
0.81 1.2 1.9
11 1.4
12 4.5
5.4 9.2 8.7
13 3.5
1.3 2
14 3.1
4.2
76 0.55
15 1.3
0.72 0.5 0.75
16 1.7 17 4 77 0.74
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18 2.5
1.1
19 1.4
0.4 0.5
20 1.4
21 0.74
0.19
78 0.47
22 0.69
0.12
23 0.26
0.06
24 0.32
25 0.73
26 1.7
27 1.7
28| 2.7
0.76 0.76
29 2.6
! 0.55
30 2.1
0.4
31 1.9 79 i 0.24
; ! ij
80 3.6
111
4.5
32! 2.4
0.65!
!
33 1.7
0.67 1.2 1.3
34 1.1
0.36
35 1.4
0.58:
0.62
0.77
36 1.2
37 3
0.52
38 3.6
1.7
39 0.14
40 0.13
41 0.12
0.09
Page 1 of 2
May 2001
FYI-0101-001378
Dataset Table - A PFO Blood Sam ples (continued)
I
1995 ; 1989-90
1985
1984
Code no.
ppm APFO ppm APFO ppm APFO ppm APFO
42 0.73 43 0.69
I
!
0.93
44 2 !
0.4 0.06
45 2.1 !
0.42
46 0.93
47 1
48 1.4
49 0.58
50 1.1
51 1.5
52 1.2
53 0.69
54! 1.7
55! 1.4 !
56 i 0.93
!
57! 1.3
58 1.4
59 0.94 60 0.37 61 0.96 62 0.6 63 1.2 64 0.91 65 1.2 66 0.46 67 0.93 68 0.31 69 0.35 70 1.1 71 1.2 72 0.95 73 0.93
# Samples Average M axim u m M in im u m
I
80 1.56 4.5 0.12
22 22 19 1.96 2.34 3.21
11 18 24 0.06 0.06 0.07
Page 2 of 2
May 2001
