Chapter 1: The Story and Future of Nanoparticulated Iron Materials Marta I. Litter Chapter 2: Nano Zerovalent Iron (nZVI) Particle Composites for Water Treatment: An Overview S. J. Tesh, H. Pullin, and T. B. Scott Chapter 3: Adsorption of Groundwater Pollutants by Iron Nanomaterials Dimitris Dermatas, Thanasis Mpouras, Nymphodora Papassiopi, Christiana Mystrioti, Aikaterini Toli, and Iraklis Panagiotakis Chapter 4: Application of Nano Zero Valent Iron (nZVI) for Water Treatment and Soil Remediation: Emerging Nanohybrid Approach and Environmental Implications Nirupam Aich, Chunming Su, Ijung Kim, and Arvid Md. Masoud Chapter 5: An Integrated Experimental and Modeling Approach to Assess the Mobility of Iron-based Nanoparticles in Groundwater Systems Tiziana Tosco, Carlo Bianco, and Rajandrea Sethi Chapter 6: Nano Zerovalent Iron (nZVI) Particles for Groundwater and Soil Treatment: Monitoring and Control of Their Solid State Synthesis, Stability, and Activity Jan Filip, Jana Soukupová, Josef Kašlík, Jan Slunský, and Radek Zboril Chapter 7: Nanoiron for Site Remediation: Bench Scale Assessment and Field Applications Gerardo López Chapter 8: Use of Nanoparticulated Iron Materials for Chromium, Arsenic, and Uranium Removal from Water Natalia Quici, Martín Meichtry, and Nahuel Montesinos Chapter 9: Iron Nanoparticles for Cr(VI) Removal from Contaminated Soil Luca Di Palma, Elisabetta Petrucci, Nicola Verdone, and Giorgio Vilardi Chapter 10: Nitrate Removal by Bimetallic Catalysts Supported by Iron Nanomaterials Shanawar Hamid, Sungjun Bae, and Woojin Lee Chapter 11: Iron or Iron-based Bimetallic Nanoparticle-Immobilized Electrospun Polymer Nanofibers for Environmental Remediation Applications Shili Xiao and Xiangyang Shi Chapter 12: Environmental Effects of the Application of Iron Nanoparticles for Site Remediation Ekain Cagigal, Marta Ocejo, José Luis R. Gallego, Ana I. Peláez, and Eduardo Rodríguez- Valdés Chapter 13: Future and Perspectives of the Use of Iron Nanoparticles for Water and Soil Remediation Marta I. Litter