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Multi-Residue Levels of Persistent Organochlorine Pesticides in Edible Vegetables: A Human Health Risk Assessment

DOI: 10.4236/jacen.2018.74013, PP. 143-152

Keywords: Organochlorine Pesticides, Vegetables, Risk, Residues, Gas Chromatography

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Abstract:

Background: This study evaluates the quantitative assessment of persistent organochorine pesticide (OCPs) residues in vegetables (Senecio biafrae) from four selected cocoa plantations in Ekiti State, Nigeria. Methods: The pesticides were extracted from the vegetable samples by using USEPA 3500C method and later clean-up on activated silica gel. The pesticides residues in the samples were determined using Gas Chromatography coupled with Electron Capture Detector (GC-ECD). Results: The results showed that the analyzed samples were contaminated with ten OCPs. The mean OCPs concentration ranged from ND0.399 mg/kg to ND0.379 mg/kg during the wet and dry seasons respectively.

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