The POLIMI (Milan, Italy) postdoc Leonardo Sandoval is spending a three months visiting period at the University of Arizona (Tucson, USA), one of the international partners of the Horizon 2020 RECYCLE project. RECYCLE promotes cross-mobilities among academic institutions and industrial companies worldwide and targets the development of strategies to trap pesticides in natural environments. At the University of Arizona, Leonardo is working in collaboration with Professors Laura Condon and Ty Ferré.