“…Biomonitoring air quality study has rapidly increased over recent decades as an inexpensive and efficient alternative where are used different bio-organisms such as lichen, mosses, tree bark, and Spanish mosses (bromeliad genus) methods, which have been widely used to estimate air pollution, especially of airborne elements during determined period time, low cost, and in several geographical areas simultaneously.Tillandsia genus or air plants are epiphytic plants of the Bromeliaceae family, which are widely distributed on their native habitat in the southern United States, Central, and South America, with a large number of species. These species grows slowly, has an extraordinary ability to obtain water and nutrients from the atmosphere through their leaves called trichomes and are resistant to hydric stress[169].Among all the species, Tillandsia usneoides and/or Tillandsia capillaris have been more employed as biomonitors of toxic trace elements in Argentina, Bolivia, Brazil, Italy, Mexico, USA, and Thailand[71,141,142,144,151,[170][171][172], and in Chile, Mexico and Paraguay were used Tillandsia recurvata[83,173,174].…”