Determination of organophosphates and neonicotinoids pesticide residues in pork meat from northeast Mexico by UPLC-MS

Animal-derived foods intended for human consumption are susceptible to the accumulation of toxic substances, including pesticides. In Mexico and other countries, pork is one of the most consumed meats, with a high demand. Therefore, the entire production and marketing chain must adhere to the quality standards established by each country and international quality guidelines. This study aimed to identify five pesticide residues of the family organophosphates (glyphosate, malathion, diazinon, parathion, and methamidophos) and one neonicotinoid (imidacloprid), in pork meat samples obtained from supermarkets and butcher shops in the northeast (Monterrey, State of Nuevo León, and Victoria, State of Tamaulipas) from Mexico utilizing Ultra-Performance Liquid Chromatography-Mass Spectrometry (UPLC-MS). Glyphosate, malathion, parathion, methamidophos, and imidacloprid were not detected in the pork samples. However, diazinon was detected with a positive rate of 30.30 % in pork samples from local supermarkets and butcher shops in Monterrey and Victoria. The detection of diazinon residues in pork samples from northeastern Mexico underscores a potential risk to human health. Therefore, it is crucial to implement monitoring and control strategies for this or other pesticide residues.