Insecticide residues in stored grains in Sonora, Mexico: Quantification and toxicity testing

M. L. Aldana-Madrid, S. Valdez-Hurtado, N. D. Vargas-Valdez, N. J. Salazar-Lopez, M. I. Silveira-Gramont, F. G. Loarca-Piña, G. Rodríguez-Olibarria, F. J. Wong-Corral, J. Borboa-Flores, A. Burgos-Hernández

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


Food safety has acquired great attention by food importer and exporters. Food rejection or acceptance across international borders is based on the compliance with international food regulations. Due to the lack of recent data on pesticide residues in Mexican grains, this study focused on detecting and quantifying insecticide residues in stored wheat, corn, chickpeas, and beans, as well as to determine their mutagenic potential. Grains were sampled from primary storage sites in Sonora, Mexico. Malathion, chlorpyrifos, deltamethrin, cypermethrin, 4,4-DDE, 4,4-DDD and 4,4-DDT were analyzed in 135 samples. Grain samples were not mutagenic and most pesticide levels were within regulation limits.

Original languageEnglish
Pages (from-to)93-96
Number of pages4
JournalBulletin of Environmental Contamination and Toxicology
Issue number2
StatePublished - Feb 2008


  • Ames test
  • Grains
  • Insecticides
  • Toxicity testing


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