Dissipation, accumulation, distribution and risk assessment of fungicides in greenhouse and open-field cowpeas
文献类型： 外文期刊
作者： Cui, Kai 1 ; Ma, Guoping 3 ; Zhao, Shengying 4 ; Guan, Shuai 1 ; Liang, Jingyun 1 ; Fang, Liping 1 ; Ding, Ruiyan 1 ; Li, Teng 1 ; Hao, Qian 5 ; Dong, Zhan 1 ; Wang, Jian 1 ;
作者机构： 1.Shandong Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Jinan 250100, Shandong, Peoples R China
2.Shandong Prov Key Lab Test Technol Food Qual & Saf, Jinan 250100, Shandong, Peoples R China
3.Shandong Acad Agr Sci, Inst Plant Protect, Jinan 250100, Shandong, Peoples R China
4.Shandong Shibang Agr Technol Co Ltd, Jinan 250100, Shandong, Peoples R China
5.Shandong Agr Univ, Coll Food Sci & Engn, Tai An 271018, Shandong, Peoples R China
关键词： Fungicides; Cowpeas; Distribution; Accumulation; Risk assessment
期刊名称：FOOD CHEMISTRY-X （ 影响因子：6.1； 五年影响因子：6.4 ）
ISSN： 2590-1575
年卷期： 2024 年 21 卷
页码：
收录情况： SCI
摘要： Pesticide residues in cowpeas have raised worldwide concern. However, only a few studies have focused on pesticide accumulation and distribution in greenhouse and open-field cowpeas. Field trial results suggest that difenoconazole, dimethomorph, thifluzamide and pyraclostrobin dissipated faster in open fields (mean half-lives, 1.72-1.99 days) than in greenhouses (2.09-3.55 days); moreover, fungicide residues in greenhouse cowpeas were 0.84-8.19 times higher than those in the open-field cowpeas. All fungicides accumulated in the greenhouse and open-field cowpeas after repeated spraying. Fungicide residues in old cowpeas were higher than those in tender cowpeas, and residues in the upper halves of cowpea pods were higher than those in the lower halves. In addition, cowpeas distributed in the lower halves of the plants had higher fungicide residues. Our findings suggest that greenhouse cultivation contributed to the pesticide residues in cowpeas after repeated spraying, although the levels of dietary health risks remained acceptable under both cultivation scenarios.
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