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Sampling, Identification and Characterization of Microplastics Release from Polypropylene Baby Feeding Bottle during Daily Use
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确定纳米塑料在作物中的积累潜力:对卜中的C标记聚烯纳米塑料的研究

Nathaniel J Clark1, Astrid C Fischer1, Demelza Carne1

  • 1School of Biological and Marine Sciences, University of Plymouth, Plymouth, PL4 8AA, UK.

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概括

这项研究表明,聚乙烯纳米塑料 (PSNP) 可以通过根进入卜植物并进入可食用组织. 这突显了农作物中纳米塑料污染的潜在食品安全问题.

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科学领域:

  • 环境科学
  • 食品安全问题
  • 植物生物学

背景情况:

  • 由于分析的局限性,农作物中纳米塑料的积累情况尚不清楚.
  • 聚烯纳米塑料 (PSNP) 是常见的环境污染物.

研究的目的:

  • 在卜 (Raphanus sativus) 中研究PSNP的吸收和转移.
  • 评估可食植物部位中纳米塑料积聚的可能性.

主要方法:

  • 使用放射性标记 (C-PS NPs) 来追踪纳米塑料的移动.
  • 卜在水培中暴露在14个C-PSNP中5天.
  • 在非肉根,肉根和芽中纳米塑料积累的量化.

主要成果:

  • 根保留了14个C-PSNP的近5%.
  • 在可食用的肉根 (∼25%) 和芽 (∼10%) 中检测到14个C-PSNP.
  • 纳米塑料的分布跟随了这一趋势:无肉根 > 肉根 > 芽.

结论:

  • 聚烯纳米塑料可以转移到可食用的植物组织中, 穿过卡斯帕尔带.
  • 植物摄入纳米塑料可能是人类暴露的途径.
  • 需要进一步的研究来解决这个新出现的食品安全问题.