Distributions of polychlorinated naphthalenes in beef from China and associated health risks

文献类型： 外文期刊

第一作者： Dong, Shujun

作者： Dong, Shujun;Zhang, Su;Wang, Peilong;Li, Jingguang;Zhang, Lei;Zhao, Yunfeng;Wu, Yongning;Zou, Yun

作者机构：

关键词： Polychlorinated naphthalene; Beef; Accumulation; Toxicity; Health risk

期刊名称：ENVIRONMENTAL POLLUTION （ 影响因子：8.9； 五年影响因子：9.5 ）

ISSN： 0269-7491

年卷期： 2023 年 322 卷

页码：

收录情况： SCI

摘要： Polychlorinated naphthalenes (PCNs) are toxic and can accumulate through the food chain. PCNs have been detected in different categories of foods. Intake of animal-derived foods is an important pathway for human exposure to PCNs. However, information on PCNs in meat from farmed animals is scarce. In this study, PCNs were assessed in beef sourced from local markets in Beijing and six provinces in China. The mean PCN con-centrations in beef samples from the seven regions varied from 41.2 to 88.7 pg/g wet weight (ww). The ho-mologue profiles of PCNs in the specimens were similar, with tri-and di-CNs being dominant. The mean concentration of PCNs in the flank (74.7 pg/g ww) was higher than that in the round (58.2 pg/g ww) or shank (53.6 pg/g ww), likely because the former contained a higher proportion of lipids than the latter. Significantly different PCN distributions in beef and dairy cow milk were identified using machine learning. The toxic equivalencies (TEQs) of PCNs in all beef samples ranged from 0.0003 to 0.022 pg TEQ/g ww. PCNs contributed to approximately 4.6% of the total TEQ values of polychlorinated dibenzo-p-dioxins, polychlorinated di-benzofurans, polychlorinated biphenyls, and PCNs in the beef. Health risks related to the intake of PCNs through beef consumption by the average person living in China were minimal.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序