Richard P. Wayne: Basic concepts of photochemical transformation.- Mónica C. Gonzalez and Enrique San Román: Environmental photochemistry in heterogeneous media.- Michael R. Hoffmann: Homogeneous and heterogenous photochemistry in the atmosphere.- Timothy J. Wallington and Ole J. Nielsen: Atmospheric photooxidation of gas phase air pollutants.- Gottfried Grabner and Claire Richard: Mechanisms of direct photolysis of biocides based on halogenated phenols and anilines.- Richard M. Pagni and Reza Dabestani: Recent developments in the environmental photochemistry of PAHs and PCBs in water and on solids.- Davide Vione, Valter Maurino, Claudio Minero and Ezio Pelizzetti: Reactions induced in natural waters by irradiation of nitrate and nitrite ions.- T. David Waite: Role of iron in the light-induced environmental processes.- Claire Richard and Silvio Canonica: Aquatic phototransformation of organic contaminants induced by coloured dissolved natural organic matter.- Marta I. Litter: Introduction to photochemical advanced oxidation processes for water treatment.- Peter K. J. Robertson, Detlef W. Bahnemann, Jeanette M. C. Robertson and Fiona Wood: Photocatalytic detoxification of water and air.- Hiroshi Erie and Kuzuhito Hashimoto: Photocatalytic active surfaces photo-induced high hydrophilicity / high hydrophobicity.- Colin Boxall, Guénaëlle Le Gurun, Robin J. Taylor and Shaorong Xiao: The applications of photocatalysis waste minimisation in nuclear fuel processing.