Jose A. Centeno, Ph.D., FRSC, is a graduate from Michigan State University and a senior research scientist at the Joint Pathology Center, USA, with over 20 years of experience in the fields of environmental toxicology and medical geology. Dr. Centeno is a co-founding member and the Past-Chairman of the International Medical Geology Association (IMGA). He is the US Officer of the IUGS-Commission on Geosciences for Environmental Management (GEM) and has served as Senior Adviser, UNESCO-IUGS-International Year of Planet Earth (2007- 2009). Dr. Centeno currently hold adjunct faculty positions at several national and international academic centers and universities including Turabo University in Puerto Rico (as Distinguished Professor, Environmental and Health), Jackson State University in Jackson, Mississippi, Metropolitan University in Puerto Rico, and the Faculty of Chemistry-University of the Republic of Uruguay. Dr. Centeno is co-editor of the book Essentials of Medical Geology – Impacts of the Natural Environment on Public Health (2005) and Medical Geology – A Regional Synthesis (2010), serves on the editorial board of four scientific journal, and has organized several national and international conferences, including as the founding member of the International Medical Geology Conference series. He has been involved in numerous academic, government and professional activities including serving as a member of the Working Group for the International Agency for Research on Cancer (IARC, Vol. 74), US National Institutes of Health (NIH) grant proposal Study Sections, USAID grant proposal Review Panel, USEPA TOSCA Interagency Testing Committee, US National Research Council Committee on Earth Sciences and Public Health, and National Academies – Board on International Scientific Organizations (BISO). He is the recipient of several national and international awards, and has been invited to speak in more than 50 countries.