在美国肉类,家禽,鱼和蛋中对和多基物质 (PFAS) 的分析
Yelena Sapozhnikova1, Kevin Stroski1
1USDA, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, Pennsylvania, USA.
概括
在蛋,肉或猪肉中没有检测到和多基物质 (PFAS). 然而,一些牛肉样本含有PFOS,一个鱼样本含有多种PFAS,包括PFOS,接近可容忍的每周摄入量.
科学领域:
- 环境化学
- 食品安全问题
- 毒理学
背景情况:
- 和多基物质 (PFAS) 是各种矩阵中发现的持久性环境污染物.
- 人类接触PFAS是越来越严重的公共卫生问题,其中饮食摄入是重要的途径.
- 了解PFAS在美国食品供应中的普遍性对于风险评估至关重要.
研究的目的:
- 调查美国市场肉类,家禽,鱼和蛋中74种不同的PFAS的存在和含量.
- 评估通过饮食摄入这些食品对人类整体暴露的贡献.
- 确定遗留的PFAS,新兴的替代品,前体和分解产品的存在.
主要方法:
- 从宾夕法尼亚州费城的零售杂货店获取86种食品样本 (牛肉,肉,猪肉,鱼,蛋).
- 用0.002-8 ng/g的检测极限方法对74个目标PFAS进行样本分析.
- 结果与欧洲食品安全局 (EFSA) 确定的最高含量和可容忍每周摄入值进行比较.
主要成果:
- 在蛋,肉或猪肉样本中没有检测到PFAS.
- 在25%的牛肉样本中检测到PFOS含量在0.057-0.145 ng/g之间,低于EFSA的限值.
- 一个鱼样本含有12个PFAS,包括PFOS,估计每周摄入量几乎达到EFSA的可容忍水平.
结论:
- 通过饮食接触某些PFAS,特别是来自鱼,可能是人类整体暴露的重要因素.
- 发现PFAS前体强调了将其纳入未来食品监测计划的重要性.
- 需要进一步的研究才能充分了解美国食品供应中的PFAS污染程度及其对公共健康的影响.
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