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Two Year Oral (Diet)Toxicitv/ Carcino.eeniciSttvudv of FluorochemicalFM-3924 in Rats Riker Experiment No. 0281 CRO01 2 Review bv Dr WilliamH Butler At therecuestof 3M CorporateToxicoloev.I have reviewed the above studv with specific regardto the evidenceof carcinogenicitoyf FM-3924.

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AR226-2341 FL^oP^M^S.

AR226-2706 28 AR226-2706 Society of Environmental Toxicology & Chemistry Summary of DuPont Presentations North American World Congress November 13-18, 2004 Portland, OR Biotransformation of '"C-labeled Fluorotelomer substances by microorganisms from activated sludge or soil.

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