The unquestionable benefits of the use of pesticides and growth activators in the agro-economy are contrasted with the disadvantages of
the widespread human exposure to their residues in fruits and vegetables. Environmental agencies around the world have established legal
directives to control their concentrations by defining suitable maximum
residue levels (MRL), which refer to the highest level of a pesticide residue that is legally tolerated in or on food or feed when they are correctly applied [1].