Opening Address (A. Van Haute). Closing Address (A. Van Haute). Chemistry for protection of the environment, past, present and future (W.J. Lacy). 1. Key-Note Lectures: Toxic Assessment of Environmental Pollutants in Public Health Science (D. Rondia). Physico- and bio-chemical operations controlling advanced management of wastes (T. Winnicki). Possibilities and limitations of micropollutant removal in biological and physical-chemical water treatment (W.W. Eckenfelder). 2. General Problems (5 papers). 3. Reduction and Oxidative Treatment of Fossil Fuels and Other Chemical Treatments of Waste Streams(3 papers). 4. The Fate of Chemical Pollutants and Their Environmental Impact (8 papers). 5. Physico-Chemical Treatment: Oxidation and Disinfection (1 paper). 6. Physico-Chemical Treatment: Flocculation and Flotation (6 papers). 7. Physico-Chemical Treatment: Filtration (3 papers). 8. Physico-Chemical Treatment: Adsorption (4 papers). 9. Physico-Chemical Treatment: Ion Exchange (3 papers). 10. Physico-Chemical Treatment: Combined Chemical-Biological Processes (4 papers). 11. Reductive and Oxidative Treatment of Fossil Fuels and Other Organic Chemicals: Monitoring the Environment (2 papers). 12. Reductive and Oxidative Treatment of Fossil Fuels and Other Organic Chemicals: Fate and Behaviour of Hazardous Organic Chemicals in the Environment (2 papers). 13. Reductive and Oxidative Treatment of Fossil Fuels and Other Organic Chemicals: Treatment of Waste Streams (4 papers). 14. Advances in Environmental Analytical Chemistry (6 papers). Author Index. Subject Index.