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Occurrence and dietary risk assessment of 37 pesticides in wheat fields in the suburbs of Beijing, China

文献类型： 外文期刊

作者： Tao, Yan 1 ; Jia, Chunhong 1 ; Jing, Junjie 1 ; Zhang, Jinwei 1 ; Yu, Pingzhong 1 ; He, Min 1 ; Wu, Junxue 1 ; Chen, Li 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, Beijing 100097, Peoples R China

2.Beijing Key Lab Environm Friendly Management Frui, Beijing, Peoples R China

关键词： Wheat; Pesticide; Risk assessment; Residue; Distribution; Soil

期刊名称：FOOD CHEMISTRY （ 影响因子：6.306； 五年影响因子：6.219 ）

ISSN： 0308-8146

年卷期： 2021 年 350 卷

页码：

收录情况： SCI

摘要： The co-occurrence of multiple pesticides in wheat fields adversely affects human health and the environment. Herein, 206 pairs of wheat and soil samples were collected from wheat fields in Beijing, China from 2018 to 2020. One or multiple pesticide residues were detected, and carbendazim (maximum: 38511.5 ?g/kg) and tebuconazole (maximum: 45.4 ?g/kg) had heavy occurrence in the wheat samples. Carbendazim, triazoles, and neonicotinoids were frequently detected in the soil samples. HCHs and DDTs were detected, with p,p?-DDE in 100.0% of the soil samples at a maximum concentration of 546.0 ?g/kg in 2020. Concentrations of carbendazim, tebuconazole, hexaconazole, and cyhalothrin in the paired soil and wheat samples exhibited significant positive correlations. Pesticides that exceeded the maximum residue limits do not pose non-carcinogenic risks, with one exception. The results provide important references towards risk monitoring and control in wheat fields, as well as facilitating the scientific and reasonable use of these pesticides.

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