Potencial de Tithonia spp. para la fitorremediación de metales pesados en entornos urbanos y periurbanos

Abstract

Abstract: Ecological research in the context of urban arboriculture seeks to help control soil and air pollution to clean up urban environments and make them safer for the population. Tithonia diversifolia is a multipurpose, perennial and widely distributed plant that colonizes vacant spaces, roadsides and riverbanks. The objective of this bibliographic review was to systematize the information available to date on the potential of T. diversifolia for the phytoremediation of heavy metals, in order to promote its use for the restoration of urban and peri-urban soils. To do this, we collected information following inclusion and exclusion criteria, which was condensed into nine validated bibliographic references to answer the research questions. It is concluded that T. diversifolia is an ideal species for use in urban arboriculture plans, with a high capacity for zinc and lead phytoextraction in soils contaminated with low concentrations of these metals.