PJB-2018-511
ASSESSMENT OF PYRETHROID RESIDUES IN OKRA AND EGGPLANT GROWN IN PERI-URBAN AREAS AND THEIR DIETARY INTAKE IN HUMANS
Adnan Amjad
Abstract
This study was designed to assess the gradual increase in the use of insecticides on vegetables and to familiarize the consumers regarding their residues. Main objective was to highlight the detrimental effects of pyrethroids (bifenthrin, cyfluthrin, cypermethrin, deltamethrin fenvalerate, lamda-cyhalothrin and permethrin) compare with dietary intake assessment of eggplant and okra grown in peri-urban environment. In this manner, total 180 (n = 60×3) samples of eggplant and okra comprised of 30 samples of each vegetable collected from peri-urban farming system of Faisalabad, Multan and Gujranwala. The procured samples were quantified for pyrethroid residues by using High Performance Liquid Chromatography (HPLC). Results revealed that for okra samples; highest residues of bifenthrin (1.25 mg Kg-1) were found in Gujranwala then Multan (1.5 mg Kg-1) and Faisalabad (1.04 mg Kg-1). In eggplant; highest residues were recorded for bifenthrin (1.33 mg Kg-1) from Faisalabad and Gujranwala (0.78 mg Kg-1). Comparatively highest residues for cyfluthrin (1.18 mg Kg-1) were reported in eggplant from Multan. Out of all analyzed samples; 32% samples contained detectable residues and 6% samples exceeded their maximum residual limits (MRLs) established by European Union (EU). Dietary intake assessment was calculated as per their maximum permissible intake (MPI) values i.e. bifenthrin (1.28), cyfluthrin (1.28), cypermethrin (3.20), deltamethrin (0.64), fenvalerate (1.28), lamda-cyhalothrin (0.064) and permethrin (3.20). Generally, residues from Multan region were greater than Gujranwala and Faisalabad showing excessive application of pyrethroids. Overall results revealed that although some samples exceeded their MRLs in studied areas, however their consumption was found within safe limit.
To Cite this article:
Download
