微塑料和纳米塑料通过剥离片盖的密封层而释放出来
1Global Centre for Environmental Remediation (GCER), School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia; CRC for Contamination Assessment and Remediation of the Environment (CRC CARE), University of Newcastle, Callaghan, NSW 2308, Australia.
Journal of hazardous materials
|October 29, 2025
概括
食品和化品包装中的纸层在打开时可能会释放出大量的微塑料,特别是在被划伤时. 先进的拉曼成像量化了这些微塑料,揭示了进入我们的食物链的潜在厨房污染源.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 分析化学 分析化学
背景情况:
- 许多消费品使用片内与塑料涂层进行密封.
- 打开这些内可以释放微塑料碎片进入产品.
- 传统的分析方法可能偏向于某些微塑料类型.
研究的目的:
- 为了量化片里面的微塑料释放量.
- 开发和应用先进的拉曼成像技术用于微塑料分析.
- 评估日常生活中微塑料污染的可能性.
主要方法:
- 使用先进的拉曼成像与高光谱分析.
- 开发了算法来解码超频谱数据用于微塑料的识别.
- 使用统计分析进行量化和形态评估.
- 通过扫描电子显微镜 (SEM) 进行交叉检查结果.
主要成果:
- 从内表面释放的量化微塑料释放量约为625颗颗粒/mm2.
- 展示了拉曼成像技术识别和可视化微塑料的能力.
- 展示了用于估计释放量和形态学的统计分析.
- 从包装中确认了微塑料污染的可能性.
结论:
- 板内是微塑料污染的重要来源.
- 先进的拉曼成像提供了改进的微塑料检测和量化.
- 包装中的微塑料对食品链构成直接风险.
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