Humic Substances protect against UV-irradiation, enable indirect photolysis and, thus, purify hazardous chemicals, they provide inorganic and organic nutrients, may form cryptic genes with DNA and dampen metabolic fluctuations. This book tries to relate effects to structural features.
Origin of Humic Substances in Freshwater.- Humic Substances as geochemical Determinates.- Global Climate Change in Fresh Water.- Interactions between DHM and Light - Direct and Indirect Effects.- Interaction of DHM with Metals and Biopolymers.