Volume 4, Issue 1

Assessment of Pesticide Residue Levels in common Fruits consumed in Lagos State, Nigeria

Koleayo Omoyajowo1, Kelechi Njoku 2, Sunday Amiolemen3, John Ogidan 4, Olapeju Adenekan5, Kayode Olaniyan6, Julie Akande7, and Ifeoluwa Idowu8
1National Centre For Technology Management, Lagos, Nigeria, 2University Of Lagos, Akoka, Yaba, Lagos, Nigeria, 3National Centre For Technology Management, Lagos, Nigeria, 4National Centre For Technology Management, Lagos, Nigeria, 5National Centre For Technology Management, Lagos, Nigeria, 6Nigeria Natural Medicine Development Agency, Lagos, Nigeria, 7Nigeria Natural Medicine Development Agency, Lagos, Nigeria, and 8Nigeria Natural Medicine Development Agency, Lagos, Nigeria
DOI:10.36108/jrrslasu/7102/40(0180)

Abstract


This study examined pesticide residue levels in three fresh fruit varieties commonly consumed in Lagos state, Nigeria. The fruits (apple, watermelon and sweet orange) were collected from various sale points of fruits in three local government areas; Eti-osa (Ajah), Lagos mainland (Oyingbo) and Ifako-ijaiye (Ifako-Ijaiye). Pesticide residue levels were determined using gas chromatography/mass spectrometry (GC-MS). Data obtained from GC-MS were statistically analysed using graph pad prism 6.0 software and compared with WHO/FAO limits. There was no significant difference (P> 0.05) in each fruits obtained per sampling location. Fruits contained pesticides below WHO/FAO limit except for watermelon that had mean pesticide residue concentration for atrazine (0.088-0.133 mg/kg), clothianidin (0.00 - 0.029 mg/kg), omethoate (0.094 - 0.205 mg/kg) and oxamyloxime (0.088 - 0.125 mg/kg) above WHO/FAO MRLs of 0.02, 0.02, 0.01 and 0.03 mg/kg for atrazine, clothianidin, omethoate and oxamyloxime respectively. The presence of pesticides in these fruits calls for strict regulation of the application of pesticides in farms and preservation chambers. This study recommends further investigation of all agricultural produce in order to circumvent contamination and other problems associated with pesticide accumulation and toxicity.


Keywords: Fruits, Pesticide residues, Maximum residue limit, and Monitoring

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