微塑料和甲酸从茶包中释放到茶饮中:发生,人类暴露和健康风险
Fatemeh Sadat Kashfi1, Azam Mohammadi1, Farzaneh Rostami2
1Systems Environmental Health and Energy Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran.
Environmental science and pollution research international
|September 11, 2023
概括
塑料茶包将微塑料 (MP) 和酸盐 (PAE) 释放到茶中. 研究发现这些污染物的含量很高,对消费者,特别是儿童,每天饮茶会造成潜在的健康风险.
科学领域:
- 环境科学 环境科学
- 食品安全 食品安全
- 分析化学 分析化学
背景情况:
- 茶袋是全球消费茶叶的受欢迎和方便的方式.
- 越来越多地在食品包装中使用塑料,引发了人们对污染物释放的担忧,包括微塑料 (MP) 和酸盐 (PAE).
研究的目的:
- 调查波斯和德国茶袋品牌中MP和PAE度的丰度和特征.
- 为了评估与MP和PAE暴露的潜在健康风险,饮用茶叶袋准备的茶.
主要方法:
- 分析了来自各种品牌的45个茶袋样本.
- 微塑料颗粒和甲酸的量化.
- 评估微塑料的尺寸,形状,颜色和聚合物类型.
- 评估儿童和成人的甲酸盐暴露导致的癌症风险 (CR).
主要成果:
- 与德国茶包 (147.28 件/茶包和 2.37 毫克/g) 相比,波斯茶包含有显著更高的MP (平均 412.32 件/茶包) 和PAE (平均 2.87 毫克/g).
- 主要的MP尺寸为100-250微米,纤维状,透明,由聚乙烯 (PE) 和尼龙组成.
- 甲基基甲酸 (DEHP) 和二基甲酸 (DiBP) 是最常见的PAE,DEHP表明所有消费者的癌症风险.
结论:
- 茶袋释放大量的MP和PAE到茶饮料中.
- 每天饮用茶包中的茶可以导致大量的MP摄入量 (儿童和成人每天摄入486-810颗粒).
- 用茶袋包装的草药制备的茶因高MP和PAE污染而带来相当大的健康风险.
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