Lucien LAUBIER: Mediterranean Sea and Humans: improving a Conflictual Partnership.- Claude MILLOT and Isabelle TAUPIER-LETAGE: Circulation in the Mediterranean Sea.- J.P. BETHOUX: Nutrient (N,P,Si), Oxygen (O2) and Carbon Ratios, CO2 Sequestration and Anthropogenic Forcing in the Mediterranean Sea.- Joan ALBAIGES: Persistent Organic Pollutants in the Mediterranean Sea.- Christophe MIGON: Trace Metals in the Mediterranean Sea. Daniel COSSA: The Mediterranean Mercury Anomaly, a Geochemical or a Biological Issue.- Francoise ELBAZ-POULICHET: River Inputs of Metal and Arsenic.- Stefano GUERZONI: Input of Various Chemicals Transported by Saharan Dust and Depositing at the Sea Surface in the Mediterranean Sea.- Bozena COSOVIC: Surface Active Properties of the Sea Surface Microlayer and Consequences for Pollution in the Mediterranean Sea.- Jean-Francois RONTANI: Importance of Visible Light-induced Photooxidation Processes in the Mediterranean Sea.- Michael O. ANGELIDIS: Exchange of Pollutants (trace elements) at the Sediment Boundary.- Herve THEBAULT: Biological Indicators in Mediterranean Coastal Waters : a Link between Environmental Chemistry and Ecological Assessment.- Jean-Marie BECKERS: Applicability of Models in the Field of Environmental Chemistry of the Mediterranean Sea.- Vittorio BARALE: Satellite Observations as Indicators of the Health of the Mediterranean Sea.