Occurrence and exposure risk assessment of pesticide residues in green tea samples cultivated in Hangzhou area, China.

IF 2.5 3区农林科学 Q2 CHEMISTRY, APPLIED Food additives & contaminants. Part B, Surveillance Pub Date : 2023-03-01 DOI:10.1080/19393210.2022.2103746

Ji-Cai Fan, Jun An, Ren Ren, Shao-Ying Liu, Hua-Li He, Gang Zhao

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引用次数: 4

Abstract

The concentration of pesticide residues in 105 green tea samples grown in Hangzhou area were investigated. Of the 14 pesticides analysed using gas chromatography-tandem mass spectrometry and the 27 pesticides analysed using liquid chromatography-tandem mass spectrometry, only 18 were detected in the tea samples. The most frequently detected pesticide residues were imidacloprid (35.2%), acetamiprid (26.7%), carbendazim (21.0%), bifenthrin (21.0%), and cyhalothrin (19.1%). Carbofuran was the only pesticide which exceeded in one sample the maximum residue limit. The concentrations of the analytes in tea samples ranged from below the limit of detection (LOD) to 2.64 mg/kg. Their mean concentrations were all below the LOD, except for imidacloprid, acetamiprid, carbendazim, bifenthrin and cyhalothrin. Based on a preliminary long-term exposure assessment, the hazard quotient values of the detected pesticides varied in the range 0.47 × 10^-3 - 1.1 × 10^-3%, which indicates that these levels did not pose a risk to human health in Hangzhou area.

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杭州地区栽培绿茶样品农药残留发生及暴露风险评价

对杭州地区105份绿茶样品的农药残留量进行了调查。在气相色谱-串联质谱法分析的14种农药和液相色谱-串联质谱法分析的27种农药中，仅在茶叶样品中检测到18种农药。农药残留检出率最高的是吡虫啉(35.2%)、啶虫脒(26.7%)、多菌灵(21.0%)、联苯菊酯(21.0%)和氯氟氰菊酯(19.1%)。呋喃是唯一一个样品中超过最大残留限量的农药。茶叶样品中分析物的浓度范围为低于检出限(LOD)至2.64 mg/kg。除吡虫啉、啶虫啉、多菌灵、联苯菊酯和氯氟氰菊酯外，其余4种农药的平均浓度均低于最低限。经初步长期暴露评价，检测到的农药危害商值在0.47 × 10-3 ~ 1.1 × 10-3%范围内变化，表明杭州地区农药对人体健康不构成危害。

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来源期刊

Food additives & contaminants. Part B, Surveillance 农林科学-毒理学

CiteScore

5.30

自引率

10.30%

发文量

审稿时长

2.7 months

期刊介绍： Food Additives & Contaminants: Part B publishes surveillance data indicating the presence and levels of occurrence of designated food additives, residues and contaminants in foods, food supplements and animal feed. Data using validated methods must meet stipulated quality standards to be acceptable and must be presented in a prescribed format for subsequent data-handling. Food Additives & Contaminants: Part B restricts its scope to include certain classes of food additives, residues and contaminants. This is based on a goal of covering those areas where there is a need to record surveillance data for the purposes of exposure and risk assessment. The scope is initially restricted to: Additives - food colours, artificial sweeteners, and preservatives; Residues – veterinary drug and pesticide residues; Contaminants – metals, mycotoxins, phycotoxins, plant toxins, nitrate/nitrite, PCDDs/PCFDs, PCBs, PAHs, acrylamide, 3-MPCD and contaminants derived from food packaging. Readership: The readership includes scientists involved in all aspects of food safety and quality and particularly those involved in monitoring human exposure to chemicals from the diet. Papers reporting surveillance data in areas other than the above should be submitted to Part A . The scope of Part B will be expanded from time-to-time to ensure inclusion of new areas of concern.