BACK TO MAIN k u t o Toxicity O f U2803-2 to tho Daphnid, DapJJnfa n r g m Data Requiromontr Guidolino Numbor U.S.

BACK TO MAIN SUMMARY OF ANALYTICAL RESULTS: MULTI-CITY FOOD STUDY The Multi-City Study was originally designed by Battelle Memorial Institute (Columbus, OH), to obtain preliminary data about the presence of fluorochemicals in foods and in drinking water to understand the potential sources of human exposure.

"_ _ 3M Special/3' Maleria|s July 16, 2002 3M Cenler St.

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TOXICITY TO TERRESTRIAL PLANTS TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: The test substance is a white powder.

Toxicological Summary PFOS Dietary Acute Mallard Study Test Substance: Perfluorooctanesulfonate (PFOS) Structure: 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, CAS# 2795-39-3 Remarks: The test substance is a white powder (3M lot #217).

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AR226-2051 BEST COPY AVAILABLE EID077205 EID077206

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AR226-2231 December 10,2001 CERTIFIED MAIL RETURN RECEIPT REQUESTED Mr.

AR226-2500 September 17,2001 GONMIAL CERTIFIED MAILRETURN RECEIPT REQUESTED Ms.

AR226-2662 52 RESEARCH Precise Research. : Proven Results.

AR226-2690 ^ AR226-2690 Executive Summary - Biodegradation Screening Studies of 8-2 Telomer B Alcohol The two studies described in the attached reports (EMSER 13-03/4842 and EMSER 15-03/4842) represent the screening phase for the biodegradability assessment of 8-2 Telomer B Alcohol (CAS# 678-39-7).

RECYCLED s^ | AR226-2692 \ ^ AR226-2692 DuPont EMSE Report No. 13-03 Study Title READY BlODEGRADATION OF 8-2 TELOMER B ALCOHOL (MODIFIED OECD 301 D CLOSED BOTTLE TEST) Test Guideline Organization for Economic and Cooperative Development (OECD) Guideline for Testing of Chemicals; Section 3: Ready Biodegradability: 301 D Closed Bottle Test (1992).

CO: AR226-2708 AR226-2708 American Society of Microbiology (ASM) Summary of DuPont Presentations Annual Meeting, 2004 Biotransformation Pathway(s) of the "'C-labeled Fluorotelomer 8-2 Telomer B Alcohol (8-2 TEA) in Acclimated Bacterial Culture WanaN.1.