Tomato production in Colombia is characterized by the intensive use of pesticides. The objective of this assessment was to characterise pesticides in soil from greenhouses and open field tomato farming systems. To achieve that, in 2013, 32 soil composite samples (100g.each) were taken randomly from greenhouses in Boyaca and open field tomato farming systems in Santander. These samples were processed in the laboratory, with analysis for 30 pesticides, through an extraction procedure based on the QuEChERS method. Determination was performed using ultra performance liquid chromatograph coupled to mass spectrometry. As a result, nine fungicides and six insecticides were detected in both evaluated systems, common amongst them were dimethomorph (0�44.446 mg*kg-1), metalaxyl (0�0.555 mg*kg-1) and methomyl (0�4.739 mg*kg?-1). In conclusion, it suggests that the presence of these pesticides in soil may present a latent risk for soil communities.

Comparison among pesticide residues in soil from greenhouses and open field tomato farming systems in Colombia

248th National Meeting (2014)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.