1. Nanomaterials in the Environment: Definitions, Characterizations, Effects, and Applications 2. Nanofiber Production Techniques Applied to Filtration Processes 3. Risks and Effects on Human Health of Nanomaterials 4. Bioavailability and Toxicity of Manufactured Nanoparticles in Terrestrial Environments 5. Occupational Health Hazards of Nanoparticles 6. Ethical Issues in Nanotechnology-I 7. Ethical Issues in Nanotechnology-II 8. Economics of Nanotechnology-I and Modern Policy and Decision-Making about Nano 9. Economics of Nanotechnology-II 10. Legalization of Nanotechnology 11. Future: Green and Sustainable Nano