1. Ecotoxicology
and Wildlife Health Division, Science and Technology Branch, Environment
Canada, National Wildlife Research Centre, Carleton University, Ottawa, ON K1A 0H3, Canada
2. Department
of Chemistry, Carleton University, Ottawa, ON K1S 5B6, Canada
3. Department
of Chemistry, Duke University, P.O. Box 90354, Durham, North Carolina 27708, United States
4. Nicholas
School of the Environment, Duke University, Durham, North Carolina 27708, United States