1. UFZ Helmholtz Centre for Environmental Research; Department Bioanalytical Ecotoxicology; Leipzig; Germany
2. Department of Biological and Environmental Sciences; University of Gothenburg; Gothenburg; Sweden
3. Epicurus; Essen; Germany
4. Faust & Backhaus; Environmental Consulting; Bremen; Germany
5. Institute for the Environment; Brunel University; Uxbridge; Middlesex, United Kingdom