Silvio Junio Ramos is an Associate Researcher at the Vale Institute of Technology, Sustainable Development, Belém, Brazil. He received his Master’s (2007) and Ph.D. (2011) degrees from the Federal University of Lavras. He is a permanent professor and coordinator of the postgraduate program in Sustainable Use of Natural Resources in Tropical Regions at ITV, and a permanent professor in the postgraduate program in Agronomy at the Federal Rural University of the Amazon. His research interests are mine field rehabilitation, soil quality index, toxic elements, and environmental and health risk assessment.