Dr. Gawad Mohammed Abdo Alwabr is currently working as Assistant Professor of Public Health & Environmental Safety at Sana’a Community College. He has completed his Ph.D. Degree in Environmental Sciences from University of Sana’a-Yemen. Previously he was appointed as Lecturer at Al-Wahda Institute of Medical Sciences, Al-Alamea Institute for Medical Sciences, Al-Rowad College of Medical Sciences, Ibn Sina University, Alrazee University, and Arwa Queen University, Al-Naseer University, and Al-Yemen University. He has supervised number of undergraduate thesis. He has published 1 book and 5 research articles in journals contributed as author/co-author.