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Organochlorine pesticides and other pesticides in peanut oil: Residue level, source, household processing factor and risk assessment

文献类型： 外文期刊

作者： Cui, Yang 1 ; Xu, Zhenlan 3 ; Tang, Shanshan 4 ; Wang, Yawei 1 ; Jiang, Guibin 1 ;

作者机构： 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China

2.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China

3.Zhejiang Acad Agr Sci, Inst Qual & Stand Agroprod, Minist Agr, Key Lab Pesticide Residue Detect, Hangzhou 310021, Peoples R China

4.UCAS, Hangzhou Inst Adv Study, Sch Environm, Hangzhou 310000, Peoples R China

关键词： Peanut oil; Soil; Pesticide residues; Oil pressing; Health risk assessment

期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：14.224； 五年影响因子：12.984 ）

ISSN： 0304-3894

年卷期： 2022 年 429 卷

页码：

收录情况： SCI

摘要： Peanut oil, edible vegetable oil largely consumed in China, may be polluted with pesticides during both peanut cultivation and processing. In this study, we analyzed organochlorine pesticides, five currently used pesticides and two degradation products, in soils, seeds, peanuts, oil and dregs and systematically tracked variations of their levels in field soils and during the pressing process. The results showed that the application of metolachlor, pirimicarb and quizalofop-p-ethyl pesticides during peanut cultivation caused their concentrations in peanuts to increase. In most samples, the concentration of 3-phenoxybenzoic acid was higher than that of lambda-cyhalothrin, and the variation trends of lambda-cyhalothrin and 3-phenoxybenzoic acid in soil samples were similar, which indicate that after application, most lambda-cyhalothrin may rapidly be degraded to 3-phenoxybenzoic acid. Regarding the pressing process of peanut oil, the sum of mass of oil and shells was less than the mass of the corresponding raw peanut. Compared with that in peanuts, the total mass of most pesticides in oil and shells was lower, while that of two degradation products was higher, an indication that the degradation products were still generated during the pressing process. Finally, the assessment of health risk of different age groups consuming the studied peanuts and peanut oil showed that the risk was very low.

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