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

第一作者： Chen, Wuying

作者： Chen, Wuying;Li, Kailong;Chen, Ang;Luo, Xiangwen;Xiong, Hao;Song, Zengshou;Liu, Yong;Zhang, Ying

作者机构：

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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