数字农科院2.0

A preliminary study on short- and medium-chain chlorinated paraffins in duck farms: Concentrations, distribution, and dietary exposure risks

文献类型： 外文期刊

作者： Shujun Dong;Su Zhang;Xingyi Wu;Jun Cao;Ming Yan;Yun Zou;Han Yan;Jian Tang;Decheng Suo;Peilong Wang

作者机构：

关键词： Accumulation;Bioindicator;Chlorinated paraffin;Egg;Feather;Health risk

期刊名称： Environmental Research

ISSN： 0013-9351

年卷期： 2024 年 246 卷

页码：

收录情况： SCIE（2024版） ; ; EI（2024版）

摘要： Chlorinated paraffins (CPs) in poultry feed and the farm environment might bioaccumulate in poultry eggs. Unlike chickens, which are mostly raised in cages, ducks are commonly raised free range. This would expose ducks to CPs in the environment. However, information on the presence of CPs on duck farms is scarce. In the present study, samples of duck eggs, duck feathers, poultry feed, and soil were collected from 25 duck farms in South China. Forty-eight congener groups of short- and medium-chain CPs (SCCPs and MCCPs) were detected in the samples. Interestingly, relatively high concentrations of SCCPs and MCCPs were found in the duck feathers. The median concentrations of SCCPs and MCCPs in the duck eggs, feathers, feed and soil were: 46 and 18 ng/g wet weight, 2460 and 992 ng/g, 103 and 47 ng/g, and 24 and 10 ng/g dry weight, respectively. The dominant groups of SCCPs and MCCPs were C10Cl6–7 and C14Cl7–8, respectively. The close relationship between duck feathers and poultry feed indicated that the duck feathers might act as a bioindicator for the exposure of ducks to CPs. The margin of exposure approach was used to assess the health risk, with the results showing that the consumption of duck eggs posed a low risk to different age groups from exposure to SCCPs and MCCPs.

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