Transportbetween environmentalccxnpartments (fugacitmyodeling)includedinlettefrrom Don Mackay on the air/wateprartitionicnogefficienctalculabons TRANSPORT BETWEEN ENVIRONMENTAL TEST SUBSTANCE COMPARTMENTS (FUGACITY) Identity:Perfluorooctanesulfonatmea;y alsobe referretdoas PFOS or FC-95. (1-Octanesulfonicacid,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-p,otassium saltCAS # 2795-39-3) Remarks: NA METHOD Test (testtype): FugacityModeling Method: Level 1,11,and IIIEQC Computer Modeling Year completed: 1999 Remarks fieldforTest Conditions: Modelingconductedby Don Mackay of D.

PFOS: Fathead 1. 1 I CHRONIC TOXICITY TO EARLY LIFE STAGE OF FISH TEST SUBSTANCE Identity:Perfluorooctanesulfonatmea;y alsobe referredto as PFOS or FC-95. (1-Octanesulfoniaccid,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-p,otassium salt,CAS # 2795-39-3) Remarks field: The testsubstance isa whitepowder.

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AR226-3573 PERFLUOROOCTANESULFONYL FLUORIDE (POSF; T-7661.4) TOXICITY STUDY BY INHALATION ADMINISTRATION TO CD RATS FOR 13 WEEKS FOLLOWED BY A 4 WEEK RECOVERY PERIOD Volume 1 MIN 313/023622 PERFLUOROOCTANESULFONYL FLUORIDE (POSF; T-7661.4) TOXICITY STUDY BY INHALATION ADMINISTRATION TO CD RATS FOR 13 WEEKS FOLLOWED BY A 4 WEEK RECOVERY PERIOD Volume 1 Sponsor 3M Center, 3M Corporate Toxicology, Building 220-2E-02, St Paul, MN 55133-3220, USA.

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: RON LATHAM & WATKINS WASH DC #3 yf Lot Sg (THU) 4.2700 12:11/8T. 12:06/N0. 4261478959 P { mm AR 996 - 0628 FACSIMILE TRANSMISSION momar-- oars aga To G[uCathemaanrgerlesAueTro[p202s2608168 [G(o20p22603749 F o T, vor Fas FORE CE Ba) g25 oon 4 38 2=z 5585 } a3 Tr OL osoAGAHh i13CH i 11047 PAS S mass ne R -- i "FRO LATHAM & WATKINS WASH OC 3 PRR rene SHAE 1707 (THU) 6.27 00 12:12/ST. 12:06/N0. 4261476959 P 2 LATHAM & WATKINS STIORNEYS 4H hv ays mie tmnt eosoor 2200 FrRIETL on TE J SFE, Me Chaves Aue ODUiSfr.efcstEoonrvf,iPCrrhovenenmginacttaoalnl,CPorPnotlercotslitoDniivAaigcsneiidonnTcdoyense Substances R40o0omM3S0t3roa, SW Washington D.C. 20460 Ms.

AR 226 _ 065 PFOS Pharmacokinetic - y 000223 COVANCE > ome mai hag Le, Sponsor: 3M St.

ENVIRONMENTAL PHYSICAL/CHEMICAL, FATE, EFFECTS AND MONITORING STUDIES GLOBAL BIOMONITORING BACK TO COMPOUNDS STUDY TITLE Accumulation of Perfluorooctane Sulfonate and Related Fluorochemicals in Fish Tissues Accumulation of Perfluorooctane Sulfonate and Related Fluorochemicals in Mink and River Otters Perfluorooctane Sulfonate and related Fluorochemicals in Oyster, Crassostrea Virginica, From the Gulf of Mexico and Chesapeake Bay Perfluorooctane Sulfonate and Related Fluorochemicals in Fish- Eating Water Birds Accumulation of Perfluorooctane Sulfonate in Marine Mammals

3M Lifetime Drinking Water Health Advisory for Perfluorooctanoate 3M Lifetime Drinking Water Health Advis Perfluorooctanoate Authors: Glow?

AR226-2681 Environmental Laboratory AR226-2681 Results from Analyses of Soil and Groundwater Samples From the E.

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).

AR226-2771 FOR DU FONT DSE ONLY Copies Co: Haakell B.

'H AR226-3028 DuPont HX.R 712-95 H&SSELL XABORAXORY FOR TOXZeOLOGX Airo XNDCTSTRXMi WSDtCSSS STA.TXC, ACBTB 96-BOOR SCRZBfiXHQ TBST OF H-21289 TO WITHBXD WXSSWIS, PliMphalaa pronalaa PURPOSE: This is a rangefinding study designed to provide an estimate of aquatic toxicity using fixed test concentrations and data measurements at predetermined intervals.

AR226-3337 Migration ofApFQfrQ^ PTF^ It was decided to develop a new method of extraction of APFO from PTFE samples (extraction during 8 h at reQux with 95 % ethanol at pH = 10 on finely ground material) as well as a new method of detection of APPO using capillary gg$ chromatography.

AR226-3344 Biotransformation of th Fluorotelomer 8-2 Telom B Alcohol Ning Wang, Patrick Folsom, Bogdan Sz Vladimir Capka, Barbara Larsen, William John Gannon.