Gowhar Hamid Dar, PhD, is Assistant Professor in Environmental Science, Sri Pratap College, Cluster University Srinagar, Department of Higher Education, Jammu and Kashmir, India. He has a PhD in Environmental Science with a specialization in Environmental Microbiology (fish microbiology, fish pathology, industrial microbiology, taxonomy and limnology). He has published more than 40 papers in international journals as well as books with international publishers. He has received many awards and appreciation for his services toward science and development. Khalid Rehman Hakeem, PhD, is Professor at King Abdulaziz University, Jeddah, Saudi Arabia. To date, Dr. Hakeem has authored and edited more than 35 books as well as many research publications in peer-reviewed international journals and book chapters in edited volumes. At present, Dr. Hakeem serves as an editorial board member and reviewer for several journals and is an advisor for Cambridge Scholars Publishing, UK. Currently, he is involved with a number of international research projects with government organizations. Mohammad Aneesul Mehmood, PhD, specializes in limnology and environmental toxicology. He has been teaching graduate and postgraduate students for the past two years in the Department of Environmental Science, School of Sciences, Sri Pratap College Campus, Cluster University Srinagar, Jammu and Kashmir, India. He has been supervising many students for their MSc projects. He has published papers in international journals as well as books with international publishers. Humaira Qadri, PhD, has been actively involved in teaching postgraduate students of environmental science for the past ten years at the Sri Pratap College Campus of Cluster University Srinagar, Jammu and Kashmir, India, where she also heads the Department of Environment and Water Management. She has published scores of papers in international journals and has more than ten books with national and international publishers. She is also a reviewer for various international journals and is Principal Investigator of some major projects on phytoremediation.