NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE HIGHWAY COVINGTON, KENTUCKY 41011-4704 600-331-2838 513-361-2838 FAX: 513-381-0613 DAYTON, OHIO OFFICE SUITE 900 110 NORTH MAIN STREET DAYTON, O NO 45402-1786 937-228-2638 FAX: 937-228-2816 Ro b e r t a .

<n> A U S iirll^ Results to Date from the PFOA Worker Study Ammonium Perfluorooctonoate: Gross-Sectional Surveillance of Clinical Measures of General Health Status Related to a Serum Biomarker of Exposure and Retrospective Cohort Analyses in a Polymer Production Plant Robin C.

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AR226-2023 MEMO RA N D U M Date: From: Dept: Tel No: 12-Dec-1886 02:30pm EPT ANTHONY J.

AR226-2417 SAMPLE r-R SAMPLE SUMMARY: 11/90 TO PRESENT -------- p t 9/i37fir DATE SAMPLED RESULT PPB C-8 STATUS 1.

3M General Offices 3M Center St.

AR226-2778 FOR DU PONT USE ONLY E.

EE> AR226-2805 MEMORANDUM To: From: Date: Subject: Gerald Kennedy Michael DeLorme 19 June 2002 APFO Aerosol Generation and Particle Size Introduction Inhalation toxicology studies with APFO in rats conducted by Haskell in 1980 demonstrated biological correlations between the airborne concentration of APFO and toxicological responses in exposed rats.

AR226-2828 Copies to: Han.

AR226-2855 HASKELL LABORATORY RAYMOND L.

AR226-3056 Study Title Approximate Lethal Dose (ALD) o f H-21987 in Rats Laboratory Project ID Haskell Laboratory Report No. 783-96 Author Tracy A.

AR226-3062 DuPont HLR 902-96 naaver.T.

TRADE SECRET AR226-3066 HLO- J997-00026 Study Title USP Biocompatibility Testing o f H-22239 (Control Item) and H-22240 (Test Item) Contracting Laboratory North American Science Associates, Inc. 2261 Tracy Road Northwood, Ohio 43619-1397 for E.

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M U - 3 30*1 /V/U ai- 230J D u p on t-13542 FINAL REPORT Study Title H-24768: In Vitro Mammalian Chromosome Aberration Study in Human Peripheral Blood Lymphocytes Authors Ramadevi Gudi, Ph.D.