DETERMINATION OF ORGANOCHLORINE PESTICIDES IN CATTLE LIVER OBTAINED FROM ZANGO, ZARIA-NIGERIA.
DETERMINATION OF ORGANOCHLORINE PESTICIDES IN CATTLE LIVER OBTAINED FROM ZANGO, ZARIA-NIGERIA.
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Date
2015-10
Authors
ANIFOWOSE, Oluwagbenga
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Abstract
The presence of Organochlorine pesticide residues in nine (9) Liver samples collected from
slaughter house in Zango, Zaria-Nigeria was determined. All samples were analyzed for the
residual contents of α-Benzenehexachloride, β-Benzenehexachloride, Lindane(γBenzenehexachloride),
endrin, Aldrin, chlorothalonil, δ-Benzenehexachloride, heptachlor,
heptachlor epoxide, endosulfan, dieldrin, endosulfan II, p,p‟-Dichlorodiphenyldichloroethane,
endosulfan sulfate, p.p‟-Dichlorodiphenyltrichloroethane, lambda cyhalothrin and permethrin by
Gas Chromatography with Electron Capture Detector (GC-ECD). Sample extraction was carried
out by warm soxhlet extraction followed by column clean-up with Florisil. The range of
concentration was α-BHC 0.02 – 0.21 mg/kg, β-BHC 0.09 – 2.57 mg/kg, Lindane 0.06 – 0.24
mg/kg, chlorothalonil 0.05 – 0.32 mg/kg, δ-BHC 0.07 – 0.90 mg/kg, heptachlor 0.13 – 1.16
mg/kg, Aldrin 0.27 – 0.61 mg/kg, heptachlor epoxide 0.13 – 1.16 mg/kg, endosulfan 0.02 –3.79
mg/kg, dieldrin 0.12 – 1.72 mg/kg, endrin 0.04 – 7.88 mg/kg, endosulfan II 0.12 – 1.56 mg/kg,
p,p‟-DDD 0.14 – 0.73 mg/kg, endosulfan sulfate 0.12 – 1.56 mg/kg, p.p‟-DDT 0.12 – 1.20
mg/kg, lambda cyhalothrin 0.07- 0.37 mg/kg and permethrin 0.02 – 0.28 mg/kg. All the samples
analyzed were found to contain these OCPs with higher concentrations observed in cattle above
24 months. Higher concentration of DDT than DDD suggests a more recent usage of the
pesticides and calls for strict and effective measures to stop the sale and usage of the pesticides.
This study has provided the preliminary information on the concentration of OCPs in liver of
cattle for the first time in Zaria. The result will help in a scientific assessment of the implications
of these pesticide residues with regards to human risk in Zaria.
Description
A DISSERTATION SUBMITTED TO THE SCHOOL OF
POSTGRADUATE STUDIES, AHMADU BELLO UNIVERSITY IN
PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD
OF MASTERS DEGREE IN CHEMISTRY.
DEPARTMENT OF CHEMISTRY,
FACULTY OF SCIENCE
AHMADU BELLO UNIVERSITY, ZARIA
NIGERIA
Keywords
DETERMINATION,, ORGANOCHLORINE PESTICIDES,, CATTLE LIVER OBTAINED,, ZANGO,, ZARIA-NIGERIA,