Evaluation of pesticide residues in open field and greenhouse tomatoes from Colombia
Fecha
2013Autor
Bojacá, Carlos Ricardo
Arias, Luis Alejandro
Ahumada, Diego Alejandro
Casilimas, Héctor Albeiro
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Resumen
The presence of 17 pesticide residues was determined in just-picked tomatoes coming from open field
and greenhouse farms in Colombia. Pesticide residues were quantified through a multiresidue method
using ultra performance liquid chromatograph coupled to mass spectrometer. The results give no clear
indication about which farming system is producing the most contaminated tomatoes. While the share of
open field samples violating the maximum residue limits (MRLs) was higher, the presence of more than
one pesticide per sample was detected in a higher number of greenhouse samples. Results showed that
all positive samples for acephate exceeded the recommended MRL, indicating indiscriminate use of this
insecticide. In both farming systems, the pre-harvest intervals are not respected due to the management
practices applied and the continuous ripening of the fruit, once the harvest starts. The results of the
present study confirm the need for a monitoring program, actually inexistent, focused in the food
commodities consumed locally.
Palabras clave
Colombia; Tomato; Pesticide residues; Farming systemsEnlace al recurso
http://dx.doi.org/10.1016/j.foodcont.2012.08.015Colecciones
- Año 2013 [97]
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