Dr. Sughosh Madhav works as a Postdoctoral Fellow at the Department of Civil Engineering, Jamia Millia Islamia, New Delhi, India. He has obtained his master’s degree from the Department of Environmental Science Banaras Hindu University, Varanasi, India. He earned his doctorate from Jawaharlal Nehru University, New Delhi, India. The area of his doctoral research is the environmental impact of textile effluents on groundwater and soil quality. He has published various research papers and book chapters in environmental geochemistry, water pollution, and wastewater remediation. He also edited 4 books related to water resource management in Elsevier, Springer, and Wiley publications. Dr. Abhishek Kumar Bhardwaj is working as an Assistant Professor at Amity School of Life Sciences, Department of Environmental Science, Amity University, India. He obtained his PhD from the Central University of Allahabad, Prayagraj, India, in the field of environmental nanotechnology. He has also done Post-doctoral research at the Department of Environmental Science, VBS Purvanchal University, Jaunpur (India). Currently, He is actively involved in the teaching and guidance of undergraduate, MSc, and PhD students. Dr. Bhardwaj's research interests encompass a wide array of topics, including green synthesis of nanomaterials for water purification, bio-sensing, nano-based device fabrication, water treatment, diatom cultivation, mushroom cultivation, phytoremediation, and waste management. His contributions to the field are well-recognized, as he has published over 30 research papers in prestigious journals, including Elsevier, Springer, American Chemical Society, American Institute of Physics, MDPI, and Frontier, among others. Furthermore, Dr. Bhardwaj serves as a respected reviewer for esteemed journals such as Journals of Cleaner Production, Journals of Environmental Pollution, Bioresource Technology, Journals of Nanoparticle Research, Scientific Reports, and more. He has also edited two books in collaboration with Elsevier and Springer. His dedication to academia and research has made him a valuable asset to the scientific community and a significant influence in the field of environmental science and nanotechnology. Eugenia (Éva) Valsami-Jones is a Professor of Environmental Nanoscience at the University of Birmingham. She holds a degree in Earth Sciences from the University of Athens and a PhD in Geochemistry from the University of Newcastle-upon-Tyne. Her research focuses on nanoscale processes in the environment and within biota. She has pioneered the development of traceable stable-isotope labelled nanomaterials and has been working on the development of analytical solutions for the improvement in speed and quality of nanoscale characterisation. Her current research priorities revolve around the application of nanotechnologies in solving environmental problems, particularly related to clean water and sustainable agriculture. She was the Mineralogical Society’s Distinguished Lecturer for 2015 and the Distinguished Guest Lecturer and Medalist of the Royal Society of Chemistry for 2015. She is currently a Royal Society Wolfson Fellow. She is a member of the coordination team of the European Commission’s Nanosafety Cluster. Arun Lal Srivastav is working as an Assistant Professor at Chitkara University, in India. He is currently involved in the teaching of Environmental Science, Environmental Engineering and Disaster Management to the undergraduate engineering students. His research interests include water treatment, river ecosystem, climate change, soil health maintenance, phytoremediation, and waste management. He has published around 50 research papers in various peer-reviewed, national and international journals, conferences, and books. He has also filed 12 patents.