Residues of chemical pollutants identification in tomato to determine their toxicity degree

An experimental analysis of the pesticides' residuality in tomato crops was carried out. The samples were analyzed through ultra-efficiency liquid chromatography following international standards.A certain residuality degree of the pesticide Chlorpirifos of 0,06 mg/kg on average and small amounts of Cu, Cd, Zn, Mn and Cr were identified, and it was related to the Maximum Residue Limits (MRLs) established by the European Union and the Codex Alimentarius. With this research it can be shown that applications without following the technical recommendations to guarantee food safety, maintain the pesticides' residuality and heavy metals for a longer time in pear-type tomato; however, this depends on the climatic variations that influence directly at residual time.