1. Aerogel and its composites: Fabrication and properties 2. Natural aerogels for pollutant removal 3. Biomedical applications of aerogel 4. Carbon aerogel composites for gas sensing 5. Conducting polymer-based aerogels for environmental remediation 6. Aerogels in photocatalysis 7. Aerogels for water borne bodies purification 8. Aerogel and its composites for heavy metal detection, dye adsorption, and photocatalysis 9. Metal and metal oxides aerogels in purification systems 10. Adsorptive removal of pollutants using aerogels and its composites 11. Aerogels for as microbial disinfectant 12. Carbon aerogel for environmental remediation 13. Aerogels in the environment protection 14. Carbon-based conducting polymers aerogels and their sensing behavior 15. Heavy metals scavenging using multidentate/multifunctional aerogels and their composites 16. Applications of nanocarbon-based aerogels in purifying industrial wastewater 17. Bio-based aerogels for environmental remediation problems 18. Bio-based aerogels and their environment applications: an overview 19. Aerogel applications and future aspects Index