Two vegetables (Potato and Tomato) and one fruit (Grapes) were selected randomly from a farmer’s field in Bangalore rural district. Pesticides were quantified by Gas chromatograph and Electron Capture Detector (GC-ECD) and the analysis... more
Two vegetables (Potato and Tomato) and one fruit (Grapes) were selected randomly from a farmer’s field in Bangalore rural district. Pesticides were quantified by Gas chromatograph and Electron Capture Detector (GC-ECD) and the analysis was carried out in Pesticide analysis laboratory, Department of Agriculture, Government of Karnataka, Bangalore. Insecticides identified and quantified were endosulfan, methyl parathion, malathion, chloropyrifos, cyhalothrin, quinolphos and fenvelerate. Eight potato samples were analysed in duplicate and six samples found to contaminated with endosulfan (75%), four were contaminated with parathion (50%). Greater MRL values were observed in two samples containing endosulfan ranging from 0.057-2.818mg kg-1 and one sample with quinolphos (0.007-0.09mg kg-1), cyhalothrin and fenvalerate were completely absent in the samples. Tomato samples analysed indicated endosulfan and fenvalerate found to contain higher MRL values where percentage accumulation of endosulfan has residue
range 0.05-2.24mg kg-1. A few samples of grapes were contaminated with acephate, cypermethrin, Metaloxyl and monoprotophos. One sample of grape contaminated with Imidocloprid and the values ranged from 0.090mg kg-1 and 0.196mg kg-1.
