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Fast Breaking Comments

By Scott A. Mabury

ESI Special Topics, December 2004
Citing URL - http://www.esi-topics.com/fbp/2004/december04-ScottMabury.html

Scott A. Mabury answers a few questions about this month's fast breaking paper in the field of Environment & Ecology.


From •>>December 2004

Field: Environment & Ecology
Article Title: Identification of long-chain perfluorinated acids in biota from the Canadian Arctic
Authors: Martin, JW;Smithwick, MM;Braune, BM;Hoekstra, PF;Muir, DCG;Mabury, SA
Journal: ENVIRON SCI TECHNOL
Volume: 38
Page: 373-380
Year: JAN 15 2004
* Univ Toronto, Dept Chem, 80 St George St, Lash Miller Bldg, Toronto, ON M5S 3H6, Canada.
* Univ Toronto, Dept Chem, Toronto, ON M5S 3H6, Canada.
* Univ Guelph, Dept Environm Biol, Guelph, ON N1G 2W1, Canada.
* Carleton Univ, Natl Wildlife Res Ctr, Environm Canada, Canadian Wildlife Serv, Ottawa, ON K1A 0H3, Canada.
* Environm Canada, Natl Water Res Inst, Burlington, ON L7R 4A6, Canada.

  November 1, 2005: This paper has also been named the New Hot Paper in Environment & Ecology for November 2005.

ST:  Why do you think your paper is highly cited?


“This paper characterizes a number of novel fluorinated pollutants, the long-chain perfluorinated carboxylates, not previously thought to be a significant environmental problem.”

This work, lead by my PDF Dr. Jon Martin, represents the discovery that long-chain perfluorinated acids are wide-spread in the environment and their concentrations are relatively high in remote Arctic animals. It identifies a number of long-chain perfluorocarboxylic acids not previously observed in pristine environments. It raises the question of just how these involatile materials make it to these remote regions. Overall, these chemical pollutants are found in polar bears at roughly equivalent concentrations to the more widely investigated and regulated chlorinated pollutants.

ST:  Does it describe a new discovery or a new methodology that's useful to others?

The discovery is useful to both industry and government regulators in characterizing the extent of the chemical pollution problem associated with these fluorinated materials.

ST:  Could you summarize the significance of your paper in layman's terms?

The Arctic is heavily polluted with chemicals that are derived from common consumer products that are released and are transported atmospherically to remote regions like the far north. Given the appropriate chemical personality, many of these pollutants bioaccumulate up food chains to become heavily concentrated in top predators like polar bears. This paper characterizes a number of novel fluorinated pollutants, the long-chain perfluorinated carboxylates, not previously thought to be a significant environmental problem.

ST:  How did you become involved in this research?

We have had a long-standing interest in fluorinated chemicals as to the role fluorine itself plays in influencing the environmental fate, disposition, and persistence of fluorinated pesticides, pharmaceuticals, and industrial compounds. Our initial research was in developing 19F NMR methodologies to support these investigations and now we are focusing on fully characterizing the mechanisms behind the pollution of the environment with fluorinated chemicals and devising the appropriate chemicals solutions.End

Scott Mabury, Associate Professor of Chemistry
and Chair, Department of Chemistry
University of Toronto
Toronto, Ontario, CANADA

ESI Special Topics, December 2004
Citing URL - http://www.esi-topics.com/fbp/2004/december04-ScottMabury.html

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