TITLE:
Occurrence and Levels of Chlorinated Pesticides Residues in Cow Milk: A Human Health Risk Assessment
AUTHORS:
Olayinka Abidemi Ibigbami, Ademola Festus Aiyesanmi, Adeolu Jonathan Adesina, Olugbenga Kayode Popoola
KEYWORDS:
Cow Milk, Organochlorine Pesticides, Gas Chromatography, Risk Assessment
JOURNAL NAME:
Journal of Agricultural Chemistry and Environment,
Vol.8 No.1,
February
27,
2019
ABSTRACT: Background: The study determined the presence and concentration of persistent organochlorine
pesticides (OCPs) residues in cow milk from Ekiti State University Agricultural
farm in Ado-Ekiti, Nigeria. The study was investigated in order to monitor
consumer’s exposure to these chemicals pesticides. Methods: Qualitative
identification and quantification evaluation of the extracted pesticides after
clean-up on silica gel were done with a Gas Chromatography coupled with an
Electron Capture Detector (GC-ECD). Results: The results revealed the
presence of 11 OCPs residues in the milk samples, with concentration range of
0.001 - 0.189 mg/l, while α-BHC, endrin, endrin aldehyde,
endosulfan II, endosulfan sulphate and methoxychlor were not detected. The
analysis of variance revealed no significant variation in the levels of all the
analysed pesticides except dieldrin. Conclusion: The hazard indices
(HIs) were significantly lower than 1 with
the range of 0.00063 - 0.107, indicating no potential health risk.