DuPont Centrai Research & Development /ilmington, DE 19880-0269 j r ) Dear Dr.

Several fundamental studies have looked at the introduction of hydrogen containing molecules to fluorinated (macro)radicals systems.3,4,6 For example, DuPont/Chemours has published extensively on trying to map the fundamental activity of these fluororadical interactions.7,8 In addition, rate constants for hydrogen atom abstraction by model perfluoroalkyl radicals have been studied and compared to analogous non-fluorinated alkyl radicals by the Dolbier group.4 These same principles and modeled reactions would apply if nonfluorinated surfactants, hydrogen atom donors, are used as PA.

Petit English Translation of Report Summary for DuPont Chemical Solutions.

Does not oontaln TSC Title: Study o f M H H P A c c u m u l a t i o n in Carp Commissioned by: DuPont KK 1-8-1 Shimo-meguro, Meguro-ku, Tokyo 153-0064 Testing Facility: Kurume Laboratory Chemicals Evaluation and Research Institute, Japan (CERI) 19-14 Chuo-machi, Kurume-shi, Fukuoka Prefecture 830-0023 Purpose of Study: To obtain Endings on the accumulation of f l H H H V in carp.

AR226-3130 TRADE SECRET Study Title H-24119: Eye Irritation Test in Rabbits Laboratory Project ID: DuPont-3312 AUTHOR: Tracy A.

This work has been carried out by Graldine Solignac, Wahid Mellouki and Georges Le Bras (CNRS-LCSR) Orlans, with the valuable contributions of Dr Ian Barnes (University of Wuppertal), Dr Klaus Wirtz (CEAM Valencia), Dr Howard Sidebottom (University College Dublin) and Dr Robert Waterland (DuPont, Wilmington, Delaware). 2 SUMMARY The main goal of the project was to determine the possible photolysis rate of the aldehyde, C6F 13CHO, produced in the OH-initiated oxidation of the fluoroalcohol, C6F 13CH2CH2OH.

1^ AR226-2685 AR226-2685 CCAS C firfiin'ttft.'

There are worldwide five major chemical manufacturers, namely DuPont (USA), Asahi and Dainippon (Japan), Clariant (Germany) and Atochem (France), which produce perfluoroalkyl chemical raw materials via the TFE Telomerization process.

AR226-3129 TRADE SECRET Study Title H-24119: Local Lymph Node Assay (LLNA) Laboratory Project ID: DuPont-3324 AUTHOR: Gregory S.

Memo SR To: Via: From: Subject: _ John Stine, Environment] Health Division Director lige PLaamreylaGuSsht,ibEan,viHreoanletmhenRtiaslk SAusrsveesislmlaenncteUannidt ASsuspeesrsmveinstoSre,cftio+n Managerfauf A.pl Helen Gooden, Health Risk Assssme Un sf1f Hou Health Based Values for Perfluorooctanoic acid (PFOA) ATian re "PFOA be lowered to 0.5 ug/L (ppb).

US EPA OPPT AR226-0951 duPont material safety data sheet on Zonyl BA Concentration (ppm) in rat liver PFOA PFDA C12 Day 1 0.16 1.69 1.20 0.117 0.029 Day 14 0.016 1.36 1.20 0.085 0.035 Day 28 <.003 2.24 0.81 0.101 0.036

AR226-2185 EXPOSURE EVALUATION FOR NEW PROCESS AT FAYETTEVILLE SITE Prepared by DuPont Engineering Technology Debbie Mulrooney Cathie Barton August 20,2001 EID293489 TABLE OF CONTENTS Executive Summary 1.

ORIGINA DOCS NOT CONTAIN CBI 3325^ DuPont Haskell Global Centers for Health and Environmental Sciences 1090 Elkton Road, P.O.

Shinohara4 Telomer Research Toxicology Program 0 The DuPont Company, Haskell Laboratory/or Health and Environmental Sciences, Newark, Delaware, USA Clariant GmbH, Suhbach, Germany Daikin Industries, Inc., Osaka, Japan Asahi Glass, Co., Ltd., Tokyo, Japan USAbstract 8-2 Teloroer B Alcohol <8-2 TBA) is a fluorinaied chemical intermediate used lo manufacture specially polymers and surfacianis.

QW6 . i-~``3 _ ~~'+` r #f 06 JUN ~ ~ PM 6 : 0 9 p. 1 Eo ' 43 1 - 3 1 q g ~~f~- G DuPont Haskell Laboratory for Health and ' Environmental Sciences Elkton Road, P .O .