Ram Naresh Bharagava, PhD is an Assistant Professor in Department of Microbiology, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow, Uttar Pradesh, India. His primary areas of research include Biodegradation and Bioremediation of Environmental Pollutants, Environmental Toxicology, Metagenomics and Wastewater Microbiology. He has published one authored book and eight edited books and more than 140 research publications in his area of research. Chaudhery Mustansar Hussain is an adjunct professor and director of laboratories in the Department of Chemistry and Environmental Sciences at the New Jersey Institute of Technology (NJIT), Newark, New Jersey, United States. His research is focused on the applications of nanotechnology and advanced materials, environmental management, analytical chemistry, and other various industries.