Introduction, Gaston Meskens, Friedo Zoelzer; Part 1: Environmental health ethics in general; 1. Environmental health in a global context, Susana Paixao; 2. Values and ethics as upstream determinants of population health: The Earth Charter at the local level, Colin L. Soskolne; 3. Cosmopolitanism and environmental health, Gaston Meskens; Part 2: Ethical challenges in toxicological research; 4. Toward a medico-legal convergence to ethically protect the public's health, Carl F. Cranor; 5. Connecting the dots: toxicological decision-making and communication in the 21st century, Steven G. Gilbert; 6. Developing teaching material in ethics for chemistry and chemistry engineering students, Tom Borsen; Part 3: Ethical challenges in radiation research; 7. The ethics of the co-expertise process in the post-nuclear accident context, Jacques Lochard; 8. Citizen participation in post-accidental recovery: Radiation doses and welfare measurements, Liudmila Liutsko, Elisabeth Cardis and Deborah Oughton; 9. A new horizon in health research ethics: A view from the perspective of radiological protection, Chieko Kurihara; Part 4: Research ethics for environmental health; 10. Roles for ethical and social values in environmental health research, Kevin Elliott; 11. The flow of values in environmental risk assessments, Per Wikman-Svahn 12. Principles of research ethics for environmental health - historical development and current trends, Friedo Zoelzer