Residue analysis and dietary risk assessment of tebuconazole in loquat and sugarcane after open-field application in China
文献类型： 外文期刊
作者： Chen, Wuying 1 ; Li, Kailong 1 ; Chen, Ang 1 ; Luo, Xiangwen 1 ; Xiong, Hao 1 ; Song, Zengshou 1 ; Zhang, Ying 2 ; Liu, Yong 1 ;
作者机构： 1.Hunan Acad Agr Sci, Hunan Plant Protect Inst, 726,Yuanda 2 Rd, Changsha 410125, Hunan, Peoples R China
2.Guizhou Acad Agr Sci, Guizhou Inst Plant Protect, Jinnong Rd, Guiyang 550006, Guizhou, Peoples R China
关键词： Tebuconazole; loquat; sugarcane; dietary risk assessment
期刊名称：JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES （ 影响因子：2.506； 五年影响因子：2.411 ）
ISSN： 0360-1234
年卷期： 2022 年 57 卷 6 期
页码：
收录情况： SCI
摘要： Tebuconazole is an effective but potentially carcinogenic fungicide. Tebuconazole residues in loquat and sugarcane were investigated, together with an analysis of their dietary risk. Solid-phase extraction and high-performance liquid chromatography-tandem mass spectrometry showed fortified recoveries of 87% to 98%, with standard deviations <= 6.4%. The tebuconazole residues were below 6.34 mg kg(-1) for whole loquat and 0.80 mg kg(-1) for sugarcane. Based on the final residue test, the chronic hazard index was 90.74% in whole loquat and sugarcane, while the acute hazard index ranged from 66.32% to 109.49% for loquat and 33.37% to 76.93% for sugarcane. The assessment of potential dietary risk showed that while loquats may represent an acute risk to human health, whereas sugarcane consumption was safe. A 21-day pre-harvest interval is proposed to comply with maximum residue limit regulations and the observed risks when using 430 g/L tebuconazole for treating sugarcane. These findings offer guidance for tebuconazole formulation and use.
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