This volume contains papers presented at a NATO Advanced Re search Workshop Programme entitled "Trace element speciation in sur face waters and its ecological implications", held in Nervi (Genoa), Italy from November 2-4, 1981. It was co-sponsored by the Scientific Affairs Division of NATO, in conjunction with its Eco-Sciences Panel, and by the Associazione Italiana di Oceanologia e Limnologia. The organizing expenses and the expenses of the chairman and all in vited participants were provided by the North Atlantic Treaty Organ ization. The scientific programme was planned by Dr. G.G. Leppard (Chief Organizer, Canada) together with Dr. O. Ravera (Eco-Sciences Panel, Italy),Dr. R. Mayer (Eco-Sciences Panel, Germany), Dr. R. Baudo (Chairman of the Local Organizing Committee, Italy), Dr. H. Muntau (Secretary of the Local Organizing Committee, Italy), and Dr. R. de Bernardi (President A.I.O.L., Italy). The final programme established by Dr. G.G. Leppard was based on one suggested by the NATO Eco-Sciences Panel and developed by Drs. R. Baudo, H. Muntau and O. Ravera.

Inhalt

1. Trace Element Speciation and the Quality of Surface Waters: An Introduction to the Scope for Research.- Analytical Approaches to the Problem of Trace Element Speciation.- 2. The Current Status of Trace Element Speciation Studies in Natural Waters.- 3. Physical Separation Techniques in Trace Element Speciation Studies.- 4. Voltammetric Studies on Trace Metal Speciation in Natural Waters. Part I: Methods.- 5. Complex Formation in Solution and in Heterogeneous Systems.- 6. Direct Speciation Analysis of Molecular and Ionic Organometals.- Trace Element Species and General Aspects of Their Interactions with Aquatic Life.- 7. Bioavailability, Trace Element Associations With Colloids and an Emerging Interest in Colloidal Organic Fibrils.- 8. Biological Effects Under Laboratory Conditions.- 9. Feasibilities and Limits of Field Experiments to Study Ecological Implications of Heavy Metal Pollution.- 10. Biological Response to Trace Metals and Their Biochemical Effects.- 11. Biological Aspects of Trace Element Speciation in the Aquatic Environment.- 12. Biological Control of Trace Metal Equilibria in Surface Waters.- New Perspectives and Future Actions.- 13. Voltammetric Studies on Trace Metal Speciation in Natural Waters Part II: Application and Conclusions for Chemical Oceanography and Chemical Limnology.- 14. Neutron Activation Analysis Applied to Speciate Trace Elements in Freshwater.- 15. Trace Element Speciation in Surface Waters: Interactions with Particulate Matter.- 16. Is Analytically-Defined Chemical Speciation the Answer We Need to Understand Trace Element Transfer Along A Trophic Chain?.- 17. Laboratory and Field Approaches to Environmental Effects Monitoring with Emphasis on Some Microbial-Heavy Metal Relations.