Exploring the dynamic behaviors of five pesticides in lettuce: Implications for consumer health through field and modeling experiments
文献类型： 外文期刊
作者： Wang, Yanhua 1 ; Liu, Panpan 2 ; Yang, Guiling 3 ; Shu, Fang 2 ; Chen, Chen 2 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Agroprod Safety & Nutr, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou 310021, Zhejiang, Peoples R China
2.Shandong Univ, Cheeloo Coll Med, Sch Publ Hlth, Jinan 250012, Shandong, Peoples R China
3.Xianghu Lab, Hangzhou 311231, Peoples R China
关键词： Plant protection products; Lettuce; dynamiCROP model; Dissipation; Health risk assessment; Food safety
期刊名称：FOOD CHEMISTRY （ 影响因子：8.8； 五年影响因子：8.6 ）
ISSN： 0308-8146
年卷期： 2024 年 452 卷
页码：
收录情况： SCI
摘要： Lettuce, a globally consumed nutritious vegetable, is often linked to concerns regarding pesticide residues. To address this issue, we conducted field trials and utilized dynamiCROP modeling to examine the uptake, distribution, translocation, and dissipation of five pesticides (lambda-cyhalothrin, difenoconazole, acetamiprid, dimethomorph, and beta-cypermethrin) commonly detected in lettuce. At harvest, pesticides residues were below the maximum residue limits (MRLs) at 0.05, 0.39, 0.047, 0.72, and 0.072 mg kg- 1, respectively. Simulation results elucidated distinct behaviors of the pesticides following application to lettuce foliage across various compartments. However, all pesticides exhibited a common dissipation trend, initially stabilizing or increasing before gradually declining. For all five pesticides, the largest contribution of residues on lettuce leaves came from the leaf surface during the early period after application, and from the soil in the long term. Health risk assessments indicated negligible risks associated with consuming lettuce containing these pesticides, both in the short and long term.
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