Polycyclic Aromatic Hydrocarbons in the South American Environment -- Silver as a Disinfectant -- Impact of Soil Properties on Critical Concentrations of Cadmium, Lead, Copper, Zinc, and Mercury in Soil and Soil Solution in View of Ecotoxicological Effects -- Critical Soil Concentrations of Cadmium, Lead, and Mercury in View of Health Effects on Humans and Animals -- Fluoroquinolone Antibiotics in the Environment -- Explosives: Fate, Dynamics, and Ecological Impact in Terrestrial and Marine Environments. Reviews of Environmental Contamination and Toxicology attempts to provide concise, critical reviews of timely advances, philosophy and significant areas of accomplished or needed endeavor in the total field of xenobiotics, in any segment of the environment, as well as toxicological implications.