HOME     SCHEDULE     AUTHOR INDEX     SUBJECT INDEX         

PARENT SESSION

PW05 Degradates in the Environment
Exhibit Hall
8:00 AM - Wednesday

(PW044) Biotransformation of 14C-labeled Fluorotelomer substances by microorganisms from activated sludge or soil.

Wang, N1, Szostek, B2, Buck, R3, Folsom, P, Sulecki, L1, Gannon, J1, 1 DuPont Central Research and Development, Newark, DE, USA2 DuPont Haskell Laboratory for Health and Environmental Sciences, Newark, DE, USA3 DuPont Chemical Solutions Enterprise, Wilmington, DE, USA

ABSTRACT- The environmental fate of chemicals containing perfluorocarbon moieties [F(CF2)n-] is of increasing scientific and public interest. The perfluorocarbon moieties, such as 8-2 Telomer B alcohol [F(CF2)8CH2CH2OH ], are building blocks of fluorotelomer-based consumer products. As part of environmental stewardship effort, we are investigating the biodegradation potential and possible biotransformation pathways of fluorotelomer products by activated sludge or by soil microorganisms. To unequivocally identify transformation products and to achieve mass balance of the test materials, 14C-labeled 8-2 Telomer B Alcohol ([F(CF2)714CF2CH2CH2OH ] and 14C-labeled fluorotelomer poly urethane were custom synthesized and were used for the study. The experimental methods, bioavailability of the test materials, observed transformation products, and potential biotransofrmation pathways will be discussed. The potential for microbial defluorination of perfluorinated C-C bonds of the test materials will also be discussed.

Key words: Fluorinated acids, Fluorotelomer, Biotransformation


Internet Services provided by
Allen Press, Inc. | 810 E. 10th St. | Lawrence, Kansas 66044 USA
e-mail assystant-helpdesk@allenpress.com | Web www.allenpress.com
All content is Copyright © 2004 SETAC