Odoko, Joseph Onyedenyifa, Department of Public and Community Health, Novena University, Ogume, Delta State, Nigeria.
Ojha, Ajay, Technogreen Environmental Solutions, Pune, Maharashtra, India
Oji, Sunday, Department of Environmental Management Technology, Abubakar Tafawa Balewa University, Bauchi-Nigeria
Oliaei, Mohammad Sadegh, Department of Research and Technology, Ministry of Science, Research and Technology, Tehran, Iran
Oliveira Abreu, Jade, Marine Sciences Institute, Federal University of Ceará (UFC), Fortaleza, Brazil
Omidi Oskouei, Alireza, Department of Public Health, School of Health, Qom University of Medical Sciences, Qom, Iran
Omokaro, Idama, Department of Computer Engineering, Delta State Polytechnic Ozoro, Nigeria
Oroji, Balal, Department of Biology Science, Faculty of Material Engineering and new Technologies, Shahid Rajaee Teacher Training University, Tehran, Iran
Oroji, Balal, Department of Environmental Science, Faculty of Natural Resources and Environmental Science, Malayer University, Malayer, Iran
Oskoie, Vahide, Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
Ostadtaghizadeh, Abbas -, Department of Health in Emergencies and Disasters, School of Public Health, Tehran University of Medical Sciences
Otitolaiye, Victor Olabode, Department of Health Safety and Environmental Management, International College of Engineering and Management, Seeb, Muscat, Oman
O’Neill, Connie, Stockholm Environmental Institute-York, University of York, England