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VOL. 4, ISSUE 1 (2022)
Concentration levels of organochlorine pesticides (OCPs) residue in soils of selected maize farms within Enugu State, Nigeria
Authors
Victor Chinedu Onyia, Charles C Chime, Prisca I Udeozo, Lotanna C Okwesili
Abstract
This study was conducted to determine the concentration level of organochlorine pesticide residues in soils of selected maize farms in Enugu State, Nigeria. Composite soil samples (1 kg each) were taken from Glory maize farm, Nkwubor Road; Ogbodo maize farm, Akpuoga Nike; Igboanugo maize farm, Ugwuoba; and Agbo maize farm, Opi Nsukka. The samples, ground into powdered form, stored in appropriately labeled hermetic polyethylene bags prior to analysis. The soil samples were analyzed for organochlorine pesticide residue using gas chromatography coupled with an electron capture detector and according to the method of the Association of Analytical Chemistry. The data analysis was done using Ms-Excel 2007. The results obtained revealed that the total organochlorine pesticide residue in the studied soils was in the order: Ogbodo maize farm > Igboanugo maize farm > Agbo maize farm > Glory maize farm. Furthermore, the OCPs residue levels exceeded the Food and Agriculture Organization and the World Health Organization’s acceptable limit for OCPs in agricultural soils. Also, the high levels could be due to the differences in the pesticide type, concentration, and accumulation. Correlation analysis revealed a weak and negative/inverse correlation between samples A and B (r = -0.28013), samples A and C (r = -0.28438), samples A and D (r = -0.14569), samples B and C (r = -0.20784), samples B and D (r = -0.32812), and samples C and D (r = -0.09325). Analysis of variance (ANOVA) showed that the organochlorine pesticides (OCP) residue variation is significant between the studied agricultural farmland soils (p>0.05). Based on the findings of this study, there is a dire need for promoting organic farming, proper implementation and amendment of pesticide-related laws.
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Pages:46-51
How to cite this article:
Victor Chinedu Onyia, Charles C Chime, Prisca I Udeozo, Lotanna C Okwesili "Concentration levels of organochlorine pesticides (OCPs) residue in soils of selected maize farms within Enugu State, Nigeria". International Journal of Agriculture and Plant Science, Vol 4, Issue 1, 2022, Pages 46-51
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