Contaminated Rivers: A Geomorphological-Geochemical Approach to Site Assessment and Remediation



Rivers, over time subjected to multiple uses by humans, are integrators of human impacts on the Earth system. As a result, the hydrological, geomorphological, geochemical, and ecological characteristics of rivers have been gradually, or suddenly, changed over time, depending on human pressures. Multiple symptoms of river changes are readily observable at the global scale as bacterial contamination, organic pollution, eutrophication, hydrological regime modifications and related impacts on the aquatic habitat, changes in sediment transport regimes and their related impacts on river morphology, and toxic substance occurrence in the riverine environment. This book makes a combined analysis of these last two issues, particularly concerning the toxic metals mercury, zinc, cadmium, and lead.