European Journal of Biomedical and Pharmaceutical Sciences

QUANTIFICATION OF ORGANOCHLORINE RESIDUE ON STORED GRAINS IN ONDO STATE, NIGERIA.

*Akinneye Joseph O., Alabadan A. O., Adesina Femi P., Adeleye Oluwakemi A. and Akinyemi Makanjuola I.

ABSTRACT

The objective of this research is to quantify the residue of chlorinated pesticide content of the four grain samples and compare their residues content with FAO/WHO MRLs. Permethrin in bean samples from location 2 (5.04 ppm) and 3 (4.44 ppm) were significantly different (p < 0.05) from the samples from location 4 (0.00 pm) and also different from sample from location 1 (2.0 ppm). There were a few exceptions in some markets such as Heptachlor (B) which was not detected in the beans sample from Location 1. There was a conspicuously high quantity (8.49 ppm) of Permethrin in the rice samples from Location 4 but Endrin was found to be absent in all rice samples. Likewise Endrin was found to be absent in all wheat samples while only the sample from Location 2 contained Lambda Cyalothrin but did not contain p,p-DDD. The Permethrin levels in wheat samples were also considerably high. The maize samples had the highest concentration in many of the organochlorine pesticide. The concentration of alpha-BHC in maize was 0.03 ppm, beta-BHC had a concentration of 0.14 ppm, 0.073 ppm for Lindane, 0.09 ppm for Chlorothalonil and 0.14 ppm in Aldrin. Almost 80% of the pesticide monitored exceeded their MRL; while some pesticide concentration slightly exceeded their maximum residue limit some concentrations were significantly higher than their MRL.

Keywords: Cereal grains, Organochlorine, Permethrin, Endrin, Maximum Residue Limit (MRL).