This book presents an integrated and holistic discussion on titanium in aquatic environments, including toxicity aspects, levels, the specific case of nanoparticles, detection techniques, physiological biota effects and, health risk assessments to both humans and aquatic organisms. Novel bioanalytical approaches for titanium determinations are also discussed. It contains worldwide and regional aspects on titanium occurrence, fate, and toxicity, bringing new knowledge on global issues and addressing key environmental exposure and health risk concerns to both humans and aquatic organisms