Document 06J6OQ7qYyrO0dnYERBmmdMvJ
.iean B. Sw~.
Staff Vice F es
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Safety Operations
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~1-,' ~'~;.' ~v / 6, 0 t 71 900 Bush Avenue, Building 4~=2E-26
PO Box 33331
St. Paul, ION 55133-3331
651 778 5488
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December 15, 2008
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Document Processing Center EPA East - Room 6428 Attn: Section 8(e) Office of Pollution Prevention and Toxics US EPA 1200 Pennsylvania Avenue N
Washington DC 20460-0001
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RE: TSCA 8(e) ADDITIONAL INFORMATION SUBMISSION for Sulfonate-based and Carboxylic-based Fluorochemicals : Docket No. 8EHQ-1180-373
To whom it may concern:
Enclosed please find the presentation Analysis ofthe Homologus Series ofPerfuorocarboxylates -Perfuorobutanoate (C4) through Perfuorododecanoate (C12) from American Red Cross Adult Blood Donors, 2006, by Geary Olsen, Mark Ellefson, and William Reagen . This presentation was prepared for the SETAC North American 29th annual meeting and presented on November 19, 2008 .
The data provided in the presentation focus on plasma C4 - C 12 perfluorocarboxylate levels in samples collected in 2006 from donors in six different US locations . Comparisons are made to a
similar set of data from samples collected in 2000. Declines were previously noted from 2000 2006 for perfluorooctanesulfonate (PFOS) and perfluoroooctanoate (PFOA) (see Olsen et al. ES&T 2008; 42:4989-4995) . In the presentation submitted herein, plasma concentrations for perfluorononanoate (PFNA), perfluorodecanoate (PFDA), and perfluoroundecanoate (PFUnDA),
appeared to have increased . Strong correlations were also observed between higher chain lengths
and weak correlations were observed between higher and lower chain lengths . Perfluorobutyrate
(PFBA) was also measured and appeared to have declined between 2000 and 2006.
'
Please note that 3M historically did not manufacture, and does not currently produce, the higher homologs or their precursors. 3M does not believe that any ofthese data taken alone or cumulatively meet the "substantial risk" reporting threshold as defined by EPA., We nevertheless recognize the on-going work of the U .S . EPA to assess fluorochemical exposure pathways . . Therefore, we are placing these results in the 8(e) docket as a supplement to previous
submissions .
--'
If you have any questions or would like any additional information, please contact Deanna Luebker at (651) 737-1374 or diluebkergmmm.com.
Sincerely,
~`3.
KMo~l
Jean B . Sweeney Staff Vice President, 3M Environmental, Health and Safety Operations
V'MAM No Cvl
TSCA CONFIDENTIAL BUSINESS INFORMATION DOES NOT CONTAIN NATIONAL SECURITY INFORMATION (E.D. 120fi5)
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-:nL ;;j-
0000%N 0
0
=3
r-11-
rMIL
%I CV)
11
CL
CL
0