flRr& 'O 5G\ Summary PFOS Rat Two-Generation Reproduction Study Study Numbers: 3M T-6295.9, Argus 418-008 (in-life), FACT-TOX-012 (analytical).

AR226-3015 Study Title Approximate Lethal Dose (ALD) of H-21095 in Rats Laboratory Project ID Haskell Laboratory Report No. 290-95 Author M.

TRADE SECRET Study Title H-23271: Skin Irritation Test in Rabbits Laboratory Project ID: D uPont-1 161 D uPont-1161 AR226-3100 A u t h o r : Carol Finlay, B.A.

AR226-3105 TNO-report V98.685 Augmented acute (4^iour) inhalation toxicity study w itty wo different batches rats TNO Nutrition and Food Research Institute Utrechtseweg 48 P.O.

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OCTANOLMATER PARTITION COEFFICIENT TEST SUBSTANCE Identity: Nre2f-e(rNr-emdettohyalspeNr-flMueoFrOooScEtAa,nesourlMfeonFaOmSidEoA).

AR226-1992 J?

An Official Journal of the Society of Toxicology Supplem ent AR7XOI1X BEST COPY AVAILABLE A- TOXICOLOGICAL SCIENCES Formerly Fundamental and Applied Toxicology Academic Press 004204 Volume 42^ Number 1-S, March 1998 hiali levels of particulate matter.

3M Medical Department Medicine Health Physics Industrial Hygiene Toxicology 3M Center Bldg. 220-2E-02 S t Paul.

AR U 6 '03% VAPOR PRESSURE TEST SUBSTANCE Identity: N-ethylperfluorooctane sulfonamidoethanol; may also be referred to as N-EtFOSE Alcohol or FM-3422. (1-Octanesulfonamide, N-ethylI.I^.S.S^AS.S.e.ejJ.S.S.S-heptadecafluoro-N-^-hydroxyethyl)-, CAS #1691-99-2) Remarks: Material is a white waxy solid.

BACK TO MAIN TOXICITY TO AQUATIC PLANTS (SELENASTRUM CAPRICORNUTUM) TEST SUBSTANCE_____________________________________ Identity: Perfluorooctanoic acid, tetrabutylammonium salt; may also be referred to as PFOA tetrabutylammonium salt, tetrabutylammonium perfluorooctanoate, N2803-2, or as a major component of L-13492.

LETTERS TO NATURE allowing for the van der Waals radii of the attached hydrogens, the `free space' dimension of the channel in this direction (left to right in Fig. 2A) is close to 20 A.

ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity:Perfluorooctanoiaccid,ammonium saft;may alsobe referredto as PFOA ammonium saltA,mmonium perfluorooctanoateP,FO, FC116, FC-126, FC-169, FC-143 or as the major component ofFC1015.

ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may also be referredto as PFOS, FC-95, or as a component ofFC-203. (1Octanesulfonicacid)(CAS # 2795-39-3).