Risk Assessment of Pesticide Residues in Vegetables and Fruits from Taishan City Based on the Index of Food Safety
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Abstract:
In this study, the residues of 16 pesticides in 10 vegetables and fruits of Taishan city were monitored from 2019 to 2021, and the safety levels were evaluated by the index of food safety (IFS) and hazard risk coefficient (R). The results showed that 34 out of 1928 vegetable and fruit samples were unqualified, and the overall passrate was 98.24%. The passrates of three types of vegetables including sprouts were lower than the overall level, and the percentage of the samples with chlorpyrifos and carbofuran exceeding the standard was 35.90%. to the results obtained by the food safety index method showed that the IFS of leafy vegetables was 2.59, and the safety status was unacceptable; the IFS values of five types of bean vegetables including were 0.066~0.38, and the safety status was acceptable; and the other 4 categories were in good safety status. The IFS values of three pesticides including fipronil were 0.68~14.05, indicating unacceptable effects on safety. The IFS values of the 13 pesticides were 0.005 8~0.76, thereby the effects on safety were acceptable. The results of the hazard risk coefficient method showed that the risk coefficient R values of five pesticides including chlorpyrifos were 2.67~6.10, indicating a high risk; the risk coefficient R values of four pesticides such as propyl bromide were 1.91~2.22, indicating a medium risk; The remaining seven were all at low risk. It is suggested that the regulatory authorities should adopt a variety of evaluation methods to evaluate comprehensively the risk of pesticide residues, and increase the monitoring of risky fruit and vegetable varieties, medium-high risk pesticide residues and those with high safety impact, while improving the coverage of rapid detection technologies for supervision work, and increase the research and development of plant growth regulators and novel rapid detection technologies for pesticides.
