1. Procter & Gamble, Mason Business Center; Mason Ohio USA
2. US Environmental Protection Agency; Gulf Ecology Division; Gulf Breeze Florida
3. Department of Mathematical Sciences; Durham University; Durham United Kingdom
4. European Centre for Ecotoxicology and Toxicology of Chemicals; Brussels Belgium
5. Syngenta, Jealott's Hill Research Station; Bracknell United Kingdom
6. Safety & Environmental Assurance Centre; Unilever Colworth; Sharnbrook Bedford United Kingdom
7. National Institute for Public Health and the Environment; Centre for Sustainability, Environment and Health; Bilthoven The Netherlands
8. Department of Environmental Science; Radboud University Nijmegen; Nijmegen The Netherlands
9. Environment Agency; Red Kite House; Howbery Park Wallingford Oxon United Kingdom