Moscoso Vanegas , D.L., Morales Pérez, M.C., Rodríguez Negrín, Z. and Arévalo Mora, A.A. 2019. METHODOLOGY TO CALCULE OF AIR QUALITY INDICE IN CUENCA CITY, ECUADOR. Centro Azúcar Journal. 46, 5 (Dec. 2019), 85–90.