1. Great Lakes Toxicology and Ecology Division, US Environmental Protection Agency Duluth Minnesota USA
2. Science and Risk Assessment Division, Environment and Climate Change Canada, Gatineau Quebec Canada
3. DuPont, Wilmington Delaware USA
4. Aquatic Contaminants Research Division, Environment and Climate Change Canada, Montreal Quebec Canada
5. Land and Water, Commonwealth Scientific and Industrial Research Organisation Urrbrae South Australia Australia
6. The Ohio State University, Columbus Ohio USA
7. Jacobs Engineering, Boston Massachusetts USA
8. Ramboll, Emeryville California USA
9. Department of Biological Sciences, Towson University Towson Maryland USA
10. Ecological Risk, Rancho Murieta California USA
11. Department of Forestry and Natural Resources, Purdue University West Layette Indiana USA
12. US Geological Survey, Columbia Environmental Research Center Columbia Missouri USA
13. Water Research Institute, National Research Council Brugherio Monza and Brianza Italy