“…In the case of agriculture and livestock farming, both activities have the capacity to drastically alter the integrity of soils and hydrological systems through the release of pesticides, nutrients, salts, sediments, organic matter, pathogens, and metals/heavy metals into the environment (Mateo-Sagasta et al, 2018). Thereby, the complexity of mobility of an specific element is given by physical-chemical conditions of soils and waters, whose values of pH, presence of clay minerals (texture), organic compounds, microorganisms, and the concentrations of other chemical species, play a profound role in the geochemical behavior of metals through the mechanisms of sorption/desorption, complexation, reaction and precipitation (Iaea, 1973;Becegato & Ferreira, 2005;Souza & Ferreira, 2005;Conceição & Bonotto, 2006a;Hussain & Hussain, 2011;Mazzilli et al, 2013).…”