Health risk associated with pesticide residues in vegetables from Incheon region of Korea

Abstract

This study was conducted to investigate the pesticide residue concentrations and assess potential human health risks from vegetable consumption in Incheon. A total of 960 samples were collected from the Incheon areas of Korea in 2019. The pesticide residues were analyzed by the multi-residue method of the Korean Food Code for 373 different pesticides using GC-MS/MS, LC-MS/MS, GC-ECD/NPD, and HPLC-UVD. Among the vegetable samples, 869 samples (90.5%) were free from detectable residues, while 91 samples (9.5%) contained residues, and 16 samples (1.7%) had residues exceeding the Korean maximum residue limit (MRLs). A total of 33 different pesticide residues were found, and 11 residues exceeded MRLs. The most frequently detected pesticide residues were chlorfenapyr, fludioxonil, pyridalyl, hexaconazole, and procymidone. Samples exceeding the MRLs were found in aster scaber, coastal hog fennel, lettuce (leaves), mustard green, mustard leaf, perilla leaves, Pimpinella brachycarpa, radish leaves, shepherd' purse, spinach, and winter-grown cabbage. The potential health risk assessment of pesticides was estimated by calculating the estimated daily intake (EDI) and the acceptable daily intake (ADI). The range of HQs was 0.002-90.621%, which was below 100%. Therefore, the results of this study show that the detected pesticide could not be considered a serious public health problem through the consumption of vegetables.

Keywords: Incheon; Korea; Pesticide residues; Risk assessment; Vegetables.