Garrido Hoyos, S.E., Avilés Flores, M., Ramírez González, A., Calderón Mólgora, C. and Nieto Rodríguez, A. 2009. Concentrations of arsenic that reach values of 2.35 mg L-1 have been identified in potable water sources in Mexico. Such concentration is above to the maximum permissible limit of 0.025 mg L-1 set by the Mexican Standard. It has been estimated that nearly. Revista AIDIS de ingeniería y ciencias ambientales: Investigación, desarrollo y práctica. 1, 3 (Nov. 2009).