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Organochlorine Pesticide Residues in Soil and its Potential Health Risk Assessment in Vegetables from Iyana-Iba Farm Settlement, Lagos State, Nigeria

Authors: Adetunji OW, Bada BS, Olujimi OO, Akinloye OA


Organochlorine pesticides (OCP) have been banned locally and internationally as a result of its persistence in the environment and their potential health hazard. The study determined the concentrations of OCP residues in soil and assessed potential health risk in vegetables from a Nigerian farm settlement. Twenty four (24) soil samples were collected at top-soil and sub-soil depths, while vegetable samples of Jute mallow (Corchorus olitorious) and Smooth pigweed (Amaranthus hybridus) were collected at 7 and 21 days after pesticide application. Extracts from the soil and vegetable samples were cleaned up and analyzed for some OCP. The hazard risk index was calculated using guidelines recommended by the United States Environmental Protection Agency (USEPA). Data collected were analyzed using descriptive and inferential statistics. Results revealed that some OCP residues were detected from the soil and vegetable samples. Hazard risk index <1 in the vegetables showed that their consumption poses no threat to human health. The detected Endosulfan 2 concentration was high, thus a long-term consumption of Jute mallow and Smooth pigweed from the farm settlement could present a public health concern. It was recommended that compliance with the ban of organochlorine pesticide need to be enforced through public enlightenment, campaign and compliance monitoring among farmers.

Affiliations: Department of Environmental Management and Toxicology, Federal University of Agriculture Abeokuta, PMB 2240, Abeokuta, Ogun State, Nigeria.
Keywords: Organochlorine, Pesticide Residues, Health Risk Assessment, Soil, Vegetables
Published date: 2020/12/30

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ISSN: 2635-3342 (Print)

ISSN: 2635-3350 (Online)

DOI: In progress

ISI Impact Factor: In progress

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Chemical Engineering Department, Faculty of Engineering, University of Benin, PMB 1154, Ugbowo, Benin City, Edo State, Nigeria.