Greenhouse cultivation enhances pesticide bioaccumulation in cowpeas following repeated spraying

文献类型： 外文期刊

第一作者： Cui, Kai

作者： Cui, Kai;Wang, Jian;Guan, Shuai;Liang, Jingyun;Fang, Liping;Li, Teng;Dong, Zhan;Ding, Ruiyan;Ma, Guoping;Wu, Xiaohu;Zheng, Yongquan

作者机构：

关键词： Pesticide residue; Cowpea; Distribution; Greenhouse and open-field scenarios; Risk assessment

期刊名称：JOURNAL OF ENVIRONMENTAL MANAGEMENT （ 影响因子：8.7； 五年影响因子：8.4 ）

ISSN： 0301-4797

年卷期： 2024 年 353 卷

页码：

收录情况： SCI

摘要： Understanding pesticide residue patterns in crops is important for ensuring human health. However, data on residue accumulation and distribution in cowpeas grown in the greenhouse and open field are lacking. Our results suggest that acetamiprid, chlorantraniliprole, cyromazine, and thiamethoxam residues in greenhouse cowpeas were 1.03-15.32 times higher than those in open field cowpeas. Moreover, repeated spraying contributed to the accumulation of pesticide residues in cowpeas. Clothianidin, a thiamethoxam metabolite, was detected at 1.04-86.00 mu g/kg in cowpeas. Pesticide residues in old cowpeas were higher than those in tender cowpeas, and the lower half of the plants had higher pesticide residues than did the upper half. Moreover, pesticide residues differed between the upper and lower halves of the same cowpea pod. Chronic and acute dietary risk assessments indicated that the human health risk was within acceptable levels of cowpea consumption. Given their high residue levels and potential accumulation, pesticides in cowpeas should be continuously assessed.

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