Anselmo McDonald – Gorgas Memorial Institute for Health Studies (GMI), Panama;
Carlos Quevedo – Atmosphere and Environmental Problems Faculty of Exact and Natural Sciences, San Lorenzo, Paraguay
Elia Machado – Lehman College, City University of New York (CUNY), USA
Fernando Méndez Gaona – Atmosphere and Environmental Problems Faculty of Exact and Natural Sciences, San Lorenzo, Paraguay
Glauco Umbelino – Federal University of Jequitinhonha and Mucuri Valleys (UFVJM), Brazil